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Rezultatele pentru wet hydrogen peroxide catRezultate gasite: 1806
Catalytic destruction of aromatic VOCs on SCR-DeNOx commercial catalyst
Environmental Engineering and Management Journal › Vol. 6 › Nr. 1 AbstractAromatic volatile organic compounds (VOCs) proved to have enhanced polluting behavior upon the atmosphere and human health. Their catalytic destruction is an alternative for environmental pollution reduction in the case of gaseous emissions with low contents of VOC.In this paper, an experimental study is presented, concerning the conversion of benzene and its mono-halogenated derivatives on SCR-DeNOx (V2O5-WO3/TiO2) commercial catalyst, specific for the reduction process of nitrogen oxid... Autori: Florin Bandrabur, Heinz Koser, Ion Balasanian, Liliana Lazar ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25105
Environmental Engineering and Management Journal, Vol. 6 Nr. 2
Environmental Engineering and Management Journal › Vol. 6 › Nr. 2 Include urmatoarele articoleâ€? Degradation of alcian blue 8 gx by heterogeneous and homogeneous photocatalytic processesâ€? Evaluating the performance of solid waste management modelsâ€? Bioreactors with stirred bed of immobilized cells 1. Studies on mixing efficiencyâ€? Fugitive emissions estimation from petroleum storage tanksâ€? New Ni(II) coordination polymers with insulating and anticorrosive propertiesâ€? Determination of water quality deterioration at pilgrimage centre along river netrav... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25196
Environmental Engineering and Management Journal, Vol. 6 Nr. 1
Environmental Engineering and Management Journal › Vol. 6 › Nr. 1 Contine urmatoarele articole:??Â?Â? Alternative energy sources in transition countries. The case of bioenergy in Ukraine??Â?Â? Catalytic destruction of aromatic VOCs on SCR-DeNOx commercial catalyst??Â?Â? Ecological Economics And Transport Systems??Â?Â? Bioleaching of uranyl ions from uranium ores by some algae??Â?Â? Irreversible affinity immobilization of lentil seedling??Â?Â? Evaluation of artificial neural network techniques for river flow forecasting??Â?Â? Hydrogen and sustainable energy. Re... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25194
Bioleaching of uranyl ions from uranium ores by some algae
Environmental Engineering and Management Journal › Vol. 6 › Nr. 1 AbstractIt was investigated the bioleaching of uranyl ions from uranium ores, in aquatic medium with algae: Scenedesmus quadricauda and Nostoc linkia under different experimental conditions. The oxidation of U(IV) to U(VI) species, like uranyl ions was done by means of the atomic oxygen generated through photosynthesis by the aquatic medium from solution above of uranium ores.After almost 10 days of direct contact with the given microorganisms, it was observed a bioleaching degree between 10% an... Autori: Alexandru Cecal, Rodica Calmoi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25107
Irreversible affinity immobilization of lentil seedling
Environmental Engineering and Management Journal › Vol. 6 › Nr. 1 An aliphatic-amine-bearing chromatographic support, based on commercial silica, was prepared and tested as potential matrix for affinity immobilization of a copper/topaquinone-containing amine oxidase from lentil seedlings. The support proved to be noticeably effective in immobilizing the enzyme with concomitant purification and activity retention. The immobilization yields and some properties of this preparation were also determined and compared with those of the soluble enzyme. High activity r... Autori: Barbara Noli, Enrico Sanjust, Francesca Sollai, Giovanni Floris ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25108
Evaluation of artificial neural network techniques for river flow forecasting
Environmental Engineering and Management Journal › Vol. 6 › Nr. 1 River runoff forecasting is one of the most complex areas of research in hydrology because of the uncertainty of hydrological and meteorological parameters and scarcity of adequate records. Artificial neural networks (ANN) can be an efficient way of modelling stream flow processes as it is capable of controlling and modelling nonlinear and complex systems and does not require describing the complex nature of the hydrological processes. In this study, daily river flow is forecasted using two ANN ... Autori: Cintia Bertacchi Uvo, Dimitri Namgaladze, George Gabitsinashvili ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25110
Hydrogen and sustainable energy. Research for hydrogen production
Environmental Engineering and Management Journal › Vol. 6 › Nr. 1 Abstract Hydrogen could be considered a synthetic secondary power carrier fuel in the years to come, subsequent to the fossil fuels economy. Thus the concept 'hydrogen economy' shall be defined, and it will also have a great influence in the future years.The field of power generation (producing electric power), transports, (electric cars), chemistry (hydrogen is a major raw material) are potential users of hydrogen.The experts support, by means of a series of economical and strategic analysis ma... Autori: Corina Rădulescu, Elisabeta Păsculete, Florentina Condrea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25111
Solid waste management systems assessment: the municipality's point-of-view
Environmental Engineering and Management Journal › Vol. 6 › Nr. 1 AbstractThe objective of the paper is to present sustainability indicators for municipal solid waste management (MSWM). Sustainability implies environmental, economic and social acceptance. The complexity of the system-in-focus requires the employment of a systems (or cybernetic) approach: Acceptance implies clear objectives, from a specific point of view (here, the viewpoint of the municipal administration is taken), over a time horizon covering at least two generations, a life-cycle considerat... Autori: Demetrios Panagiotakopoulos, Konstantinia Tsilemou ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25112
Degradation of alcian blue 8 gx by heterogeneous and homogeneous photocatalytic processes
Environmental Engineering and Management Journal › Vol. 6 › Nr. 2 <!--[if !supportEmptyParas]--> The photocatalytic degradation of Alcian Blue 8 GX, a copper phthalocyanine cationic dye, has been investigated in aqueous solutions both in heterogeneous and homogeneous systems. Initial colour removal rates in different conditions were calculated in both cases. Influence of amounts of H2O2 and FeCl3 was studied and compared for the two photocatalytic systems. Finally, some conclusions regarding the efficiency of the two photocatalytic processes were es... Autori: Anca Florentina Caliman, Chrysanthi Berberidou, , Liliana Lazar, Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25114
Evaluating the performance of solid waste management models
Environmental Engineering and Management Journal › Vol. 6 › Nr. 2 The great variety of available Solid Waste Management System (SWMS) models, along with a plethora of continuously developing technological advancements in the design and operation of the treatment facilities and collection and transport schemes, the continous updating of national (and/or European) regulations on waste management and the increased computer literacy and availability, renders the selection of a SWMS model a complex endeavor. From the view point of a municipality, the following ques... Autori: Demetrios Panagiotakopoulos, Konstantinia Tsilemou ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25115
Bioreactors with stirred bed of immobilized cells 1. Studies on mixing efficiency
Environmental Engineering and Management Journal › Vol. 6 › Nr. 2 The models describing the flow or the heat and mass transfer in stirred bioreactors can be easily adapted for the continuous phase from the stirred bed bioreactors. But, for the immobilized biocatalyst phase, new models have to be established. Therefore, in this paper the influences of the main factors on mixing for a bioreactor with stirred bed of S. cerevisiae immobilized cells in alginate have been analyzed.. The mixing efficiency continuously increases with rotation speed acceleration for th... Autori: Anca-Irina Galaction, Anca-Marcela Lupasteanu, Dan Caşcaval ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25116
Determination of water quality deterioration at pilgrimage centre along river netravathi, mangalore using WQI approach
Environmental Engineering and Management Journal › Vol. 6 › Nr. 2 An attempt has been made to develop Water Quality Index (WQI), using six water quality parameters at riverside stations located in the vicinity of temples of Dakshina Kannada district, Karnataka, South India. Rating curves were drawn based on the tolerance limits of inland waters and health point of view. Bhargava WQI method and Harmonic Mean WQI method were used to find overall WQI along the stretch of the river basin. Five point rating scale was used to classify water quality in each of the st... Autori: Santosh M. Avvannavar, Surathkal Shrihari ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25119
Degradation of gas-phase trichloroethylene overthin-film TiO2 photocatalyst in multi-modules reactor
Environmental Engineering and Management Journal › Vol. 6 › Nr. 2 The present paper examined the photocatalytic degradation (PCD) of gas-phase trichloroethylene (TCE) over thin-film TiO2. A large-scale treatment of TCE was carried out using scale-up continuous flow photo-reactor that nine reactors were arranged in parallel and serial. The parallel or serial arrangement is a significant factor to determine the special arrangement of whole reactor module as well as to compact the multi-modules in a continuous flow reactor. The conversion of TCE according to the ... Autori: Gyung Soo Kim, Sang Bum Kim, Sung Chang Hong ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25121
Methyl tert- butyl ether occurrence and degradation in water
Environmental Engineering and Management Journal › Vol. 6 › Nr. 2 The use of gasoline oxygenated with MTBE (methyl tert-butyl ether) reduced significantly air pollution (16 - 23% lower emissions of CO and 18% lower emissions of unburned hydrocarbons) but increased water pollution. There is no European or national regulations for MTBE in drinking water except for Denmark, which has set a limit value of 30 µg/ L for MTBE. USEPA proposed a maximum concentration of 20- 40 µg/L. This paper is a review with 70 references on the MTBE production, use, properties and... Autori: Camelia Beţianu, Florina Ungureanu, Loredana Branza, Lucian Vasile Pavel, Maria Gavrilescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25122
Emerging academic responsibilities and opportunities for promoting regional sustainability
Environmental Engineering and Management Journal › Vol. 6 › Nr. 5 AbstractAcademics have had numerous responsibilities during the centuries. However, now with global climate changes and the attendant, looming crises, it is increasingly crucial that administrators, faculty members, graduate, undergraduate students, staff members and alumni work together with governmental, non-governmental and industrial members in envisioning societies that are truly sustainable. The visions must then be effectively and efficiently implemented in numerous locations throughout t... Autori: Donald Huisingh ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25149
Removal of persistent organic pollutants from textile wastewater by membrane processes
Environmental Engineering and Management Journal › Vol. 6 › Nr. 3 AbstractThe textile industry is a large water consumer. Stringent regulations of wastewater characteristics require the use of membrane processes for the removal of persistent organic pollutants (POPs) from textile wastewater prior to discharge or recycling of these effluents.This paper presents an overview of research related to the removal of persistent organic pollutants from textile industry by membrane processes, discussing also the correlations with actual pre-treatment and removal rates. ... Autori: , Corina - Petronela Musteret ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25127
Development trends of cold plasma reactors in the global context of carbon emission reduction
Environmental Engineering and Management Journal › Vol. 6 › Nr. 3 This paper brings a review on the trends of arc plasma reactors, in the new millennium, as an alternative contribution to the reduction of carbon emission at global level. The development of technically and economically feasible plasma processes for the production of hydrogen is analyzed. Literature provides data on achievable intensification of the involved chemical processes comparing with those from the classic reactors. The hydrogen production is studied starting from hydrocarbons and alcoho... Autori: Iulian Rusu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25128
Assessing the potential of wind power in Romania within Kyoto targets
Environmental Engineering and Management Journal › Vol. 6 › Nr. 3 The Kyoto target for Romania was to reduce its carbon dioxide emissions by 8 % from the 1989 levels. The 1989 emissions were around 260 million tones. In 2000 the net CO2 emission - some 125 million tones - were 54% of the net CO2 emission in the reference year -1989, leaving some 115 million tones as a reserve or as a tradable resource to other countries that can not met their Kyoto targets. Assuming that Romania will sell 100 millions tones of its extra quota in accordance to Article 17 under ... Autori: Ciprian Sebastian Munteanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25129
Sustainability evaluation of an urban residential settlement
Environmental Engineering and Management Journal › Vol. 6 › Nr. 3 AbstractThe Kyoto target for Romania was to reduce its carbon dioxide emissions by 8 % from the 1989 levels. The 1989 emissions werearound 260 million tones. In 2000 the net CO2 emission - some 125 million tones - were 54% of the net CO2 emission in the reference year -1989, leaving some 115 million tones as a reserve or as a tradable resource to other countries that can not met their Kyoto targets. Assuming that Romania will sell 100 millions tones of its extra quota in accordance to Article 17... Autori: Koshy Varghese, L. S. Ganesh, ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25130
Research on the impact induced in the environment by milk processing Industry case study: S.C. Raraul ltd. Campulung, Suceava county
Environmental Engineering and Management Journal › Vol. 6 › Nr. 3 The paper presents some investigations and assessments on the impact induced in the environment by a milk processing unit which makes a variety of products. The balance sheets for raw materials were elaborated for all the activities carried on the location; based on these, the synthetic indexes of the impact on the environment were drawn, as well as the specific factors: the extent of the usage of raw material, materials and specific effluents.... Autori: Adriana Ilisoi, , Letitia Cezar, Mihai Nicu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25131
Marine micro and macro algal species as biosorbents for heavy metals
Environmental Engineering and Management Journal › Vol. 6 › Nr. 3 AbstractThis paper reviews some practical aspects of the application of algal biomass for the biosorption of heavy metals from wastewater. The ability of different algal species to remove metals varies with algal group and morphology, with the speciation of specific metals and their competition with others in wastewater, and with environmental or process factors. The scattered literature on the uptake of heavy metals by both living and dead algal biomass - both macroalgae and immobilized microal... Autori: Loredana Branza, Maria Gavrilescu, Matthew J. Dring ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25133
Process water of papermaking: model building and characterization
Environmental Engineering and Management Journal › Vol. 6 › Nr. 4 Actual trends in papermaking concern on the use of recycled fibers and minimizing effluent volume by closing water circuit. Beside environmental and economic advantages, both trends can lead to serious problems in papermaking processes due to contaminants introduced with recycled fibers and their accumulation in closed water system. A key factor to avoid disturbances in the papermaking is to prevent the accumulation of detrimental compounds. In this respect, first it is necessary to find out met... Autori: Dan Belosinschi, Elena Bobu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25134
Landfill inventory in the Republic of Moldova: problems and solutions
Environmental Engineering and Management Journal › Vol. 6 › Nr. 4 AbsractThe paper highlights the inventory of landfill, focusing on the feasibility study of solid waste disposal sites inventory in the Republic of Moldova and existing situation in waste management, including landfills analysis. The paper contains relevant information on landfills characteristics, their location and description of disposed waste. Technical assistance for the study was provided by the regional project Capacity building for improving the quality of greenhouse gas inventories (Eur... Autori: Tatiana Tugui ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25135
Application of polycations in separation processes
Environmental Engineering and Management Journal › Vol. 6 › Nr. 5 AbstractFlocculation performance of three chitosan samples with different viscosities (?§ = 400, 800 and 1000 mPas) and two strong synthetic polycations of integral type (PDADMAC and PCA5) on two model aqueous suspensions (kaolin and bentonite) was investigated. The flocculation results indicated that all the polycation samples were efficient in the kaolin flocculation, the turbidity being completely removed at approximately the same polycation dose; the flocculation window ranged between 2.7 an... Autori: Ecaterina Stela Dragan, Luminita Ghimici, Marcela Mihai ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25201
Zero discharge: technological progress towards eliminating pulp mill liquid effluent
Environmental Engineering and Management Journal › Vol. 6 › Nr. 5 AbstractThe goal of this paper is to examine the potential for ecologically and economically sustainable kraft pulp mills. This paper reviews technical and scientific literature on a wide range of factors that will influence the overall impact of a pulp mill on its total environment. The emphasis is on efforts to achieve "closed-loop," or Totally Effluent Free (TEF) mills which eliminate all liquid effluent and minimize the quantity and environmental impact of air and land discharges. An attempt... Autori: Adrian Puitel, Dan Gavrilescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25202
Researches on air micro flora determination from public indoor spaces and hospital wards in an urban area
Environmental Engineering and Management Journal › Vol. 6 › Nr. 4 AbstractMicrobial flora is an indicator of the environmental potential of allowing the air-transmitting infections. The paper presents the determination of micro-flora from public indoor spaces and hospital wards in an urban zone. There were used the following sampling and insemination methods: harvesting by sedimentation (Koch method) and harvesting by aspiration, filtration methods, barbotage method, impact method, electro-precipitation method and biotest Hycon. Air micro-flora determinations ... Autori: Capatina Camelia, Cristinel Racoceanu, Gheorghe Lazăr ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25139
Wet hydrogen peroxide catalytic oxidation of parachlorophenol over clay based catalysts
Environmental Engineering and Management Journal › Vol. 6 › Nr. 5 This study presents an evaluation of the catalytic performances of Fe containing clay-based catalysts for the wet hydrogen peroxide catalytic oxidation (WHPCO) of 4-chlorophenol (4-CP) aqueous wastes. The catalysts were prepared by well-established techniques, their properties being determined by DRX, BET and chemical analysis techniques. All the tests were performed on a laboratory scale set-up. The ion-exchanged clays were the most active catalysts (100 % 4-CP and 84 % COD removal for Fe-Mt) b... Autori: , Cezar Catrinescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25157
Electrical properties of SnO2-Pt/Al2O3 in reduction atmosphere
Environmental Engineering and Management Journal › Vol. 6 › Nr. 5 AbstractCatalysts having mobile electrons in bulk such as metals and semiconductors are good solid materials for red/ox type of reaction (oxidation) and can be effectively used in gas sensing devices as well. The aims of this work were: (i) to investigate the surface behavior of Pt(0.28%)/Al2O3 and SnO2(2.94%)-Pt(0.28%)/Al2O3 samples in inert atmosphere (He) and in reducing atmosphere containing helium-cyclopropane gas mixture under ambient condition (i.e., room temperature, atmospheric pressure... Autori: , Cornel Munteanu, Jozsef Kovacs, Mariana Scurtu, Monica Caldararu, Tatiana Yuzhakova ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25146
Effects of water level fluctuation on reproduction and spawning habits of fish species in lake Balaton
Environmental Engineering and Management Journal › Vol. 6 › Nr. 5 AbstractIn 2004, the types of shoreline were estimated on Lake Balaton, such as rip-rap covered, reedy, concrete or grit. Exact area of a specific face of a rock in the rip-rap covered parts can be determined by digital image analysis. Wetted rocky area of the shore was estimated as a function of water level in 10 cm steps of level changes. Taking into account the reproduction characteristics of the studied fish species (Cyprinidae) the potential substrates for spawning are dominantly the shallo... Autori: Gabor Borbely, Gabor Paulovits, Laszlo G. Toth, Nora Kovats ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25204
Quantification of lead pollution in bucharest area and potential risks for human health
Environmental Engineering and Management Journal › Vol. 6 › Nr. 5 AbstractLead is unique among the toxic air contaminants that the World Health Organization (WHO) has identified it in several ways. Lead concentration is increasing rapidly in the environment due to increased use in anthropic activity. Lead is released into the atmosphere from metallurgy and siderurgy industry, during coal burning, oil or wastes, from power plants which use solid fuel, from traffic and the building sites. Regardless the exposure mode, the presence of lead in urban air, even in r... Autori: Alina Murariu, Aurelia Meghea, Aurelian Stanescu, Ioana Lacatusu, Mihaela Mihai ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25205
Keynote Lectures Energy from municipal solid waste: large-scale incineration or small-scale pyrolysis?
Environmental Engineering and Management Journal › Vol. 6 › Nr. 5 AbstractMunicipal solid waste (MSW) management is an important and challenging issue for sustainable development. It is also one of themost controversial problems and a subject of an ongoing debate between different interested parties. A particularly controversial issue is MSW incineration (with or without energy recovery) which has in many countries become a socially unacceptable option for dealing with solid waste. On the other hand, the increasing amounts of waste each year demand immediate a... Autori: Adisa Azapagic ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25147
Challenges for integrated water resources management in Romania
Environmental Engineering and Management Journal › Vol. 6 › Nr. 5 This study presents an overview of the current activities and results undertaken within the CEEX SIWMANET project dealing with an assessment of the actual challenges for Integrated Water Resources Management (IWRM) implementation in Romania,seen especially in relation with the R&D system and the need to develop especially the cooperation, training and participatory processes that are required for actual implementation in which the universities may play an important role in terms of catalyst ... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25150
Practical applications and evolution of the new water treatment technologies
Environmental Engineering and Management Journal › Vol. 6 › Nr. 5 The article presents the principles on which the upgrading of the ground and surface water treatment plants, respectively the implementation of new technologies are based. The outcome obtained in Timisoara consequently to applying the aforesaid principles and the strategies for the improvement in drinking water quality are also provided.... Autori: Ilie Vlaicu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25151
Municipal pricing of water considering that water is both an economic and a social good - a pricing reform with implications for Romania
Environmental Engineering and Management Journal › Vol. 6 › Nr. 5 AbstractOne of the basic principles in the European policy to cope with the growing challenge of water scarcity is that water demand management should be considered before opting for additional water infrastructure. The implication of this is that water must be treated as an economic good, which means that the "user's pays' principle"has to be implemented. At the same time there is much political consensus that the water price has to be "equitable". Water can be subsidized without violating the ... Autori: Lars Hansson ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25155
Study of the non-catalytic and catalytic oxidative destruction of VOCs
Environmental Engineering and Management Journal › Vol. 6 › Nr. 5 In recent years, the release of volatile organic compounds (VOCs) has received much attention. Catalytic oxidation of VOCs, found in small concentration in industrial gas emissions constitutes an alternative for environmental pollution reduction.In this paper, a comparative study regarding the non-catalytic and catalytic oxidative destruction of non-halogenated or halogenated C6 hydrocarbons (C6H14, C6H12, C6H6, Cl-C6H5, Br-C6H5), is presented. Catalytic oxidation was studied in the presence of ... Autori: Florin Bandrabur, Heinz Koser, Ion Balasanian, Liliana Lazar ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25162
Environmental Engineering and Management Journal, Vol. 1 Nr. 1
Environmental Engineering and Management Journal › Vol. 1 › Nr. 1 Contain all the articles from this issue Risk assessment and management - tools for sustainable developmentMaria GavrilescuSustainable alternatives for petrochemical wastewater managementCarmen Teodosiu, Lidy E. Fratila-ApachiteiThe role and the place of oxidant reagents in wastewater treatmentIoan RoscaEnvironmental Psychology, a new direction in the psychological fieldCarmen Catalina IoanChanging concepts of high performance to socially sustainable organizationCostache Rusu, Nerida DavisU... Autori: Abdelnaser Omran ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25166
Environmental Engineering and Management Journal, Vol. 1 Nr. 2
Environmental Engineering and Management Journal › Vol. 1 › Nr. 2 Contain all the articles from this issueICEEM /01 PLENARY CONFERENCETen years of Environmental Engineering and Management education and research at the Technical University of IasiMatei Macoveanu, Carmen Teodosiu ICEEM/01 - Environmental Engineering SectionRemoval of nitrogen oxides from Diesel exhaust: Laboratory studies for development of an SCR-catalyst-system using solid urea as reducing agentWerner Weisweiler High temperature desulphurization of hydrogen sulphide containing ... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25167
Environmental Engineering and Management Journal, Vol. 1 Nr. 3
Environmental Engineering and Management Journal › Vol. 1 › Nr. 3 Contain all the articles from this issueICEEM/01 -- Environmental Engineering SectionThermodynamic and kinetic study of gas desulphurization by adsorption on zeolites Ion Untea, Dan Brasoveanu, Madeleine Dancila, Szidonia Bocskor Mixed oxides derived from vanadium substituted layered double hydroxides as catalysts precursors for SO2 oxidationGabriela Carja, Ionel Popa, Gabriela Ciobanu, Nicolae Aelenei The impact of energy production on environment in RomaniaCarmen Zaharia, Mioara Sur... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25168
Environmental Engineering and Management Journal, Vol. 1 Nr. 4
Environmental Engineering and Management Journal › Vol. 1 › Nr. 4 Contain all the articles from this issue:ICEEM/01 -- Environmental Management Section Corporate environmental competence: A concept for characterising and assessing the environmental practice in companies and product chainsMichael S?¸gaard J?¸rgensen, Marianne Forman Life cycle assessment of some alternatives for the supply of thermal energy in the municipality of Iasi (Romania).Nicolae Peiu Management options for the industrial and municipal wastes in the city of Iasi Carmen Teod... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25169
Environmental Engineering and Management Journal, Vol. 2 Nr. 3
Environmental Engineering and Management Journal › Vol. 2 › Nr. 3 Plants as biomarkers, biosensors and biomonitorsModelling of wastewater treatment of a pulp and paper mill for monitoringCatalysts for heterogeneous photocatalysts. Part I. Possibilities to improve photoefficiency through catalysts modificationThe global assessment method of the water qualityAspects regarding the wood certification in RomaniaDecolorizing of pulping effluents by ammonium lignosulphonate oxidationPowder coatings-based organic filmsOn environmental effects of the pulp and paper mil... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25172
Environmental Engineering and Management Journal, Vol. 2 Nr. 4
Environmental Engineering and Management Journal › Vol. 2 › Nr. 4 Contain all the articles from this issueDestruction of Volatile Organic Compounds by catalytic oxidationAlice Oana Rusu, Emil DumitriuRisk assessment for a shipyard from Romanian Black Sea CoastAnca Florentina Caliman, Ion Balasanian Monitoring the behavior of the restoration interventions of the Probota Monastery’s indoor frescoes under the influence of the environmental factors. II. Modifications of the physical-structural and chemical characteristicsIon Sandu, Adrian Dima, Ioan Gabriel Sand... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25173
Environmental Engineering and Management Journal, Vol. 3 Nr. 1
Environmental Engineering and Management Journal › Vol. 3 › Nr. 1 Contain all the articles from this issueConsiderations concerning ecological footprint of RomaniaNicolae Peiu, Matei MacoveanuEffects of some industrial wastes on different plant species in hydroponics experimentsRuxandra Bodarlau, Carmen-Alice Teaca, Valentin I.Popa The pollution index, a new technical tool in water quality assessmentMihai Nicu, Marcel Perjoiu Solid waste management in pulp productionDan Gavrilescu Curricular development perspectives: education for sustainabledevelopmentCarmen ... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25174
Environmental Engineering and Management Journal, Vol. 3 Nr. 2
Environmental Engineering and Management Journal › Vol. 3 › Nr. 2 Contain all the articles from this issueCatalysis for heterogeneous photocatalysis. Part II. Methods for synthesisAnca Florentina Caliman, Ion BalasanianpH influence on sonochemical degradation of cyanides with H2O2 and O2Ioan Iordache, Mircea Teodor Nechita, Nicolae Aelenei, Gabriela Apostolescu, Ioan Rosca Studies of various wastewater nitrification bioreactor types based on modelling and simulationDiana Lupasteanu, Florina Ungureanu, Maria Gavrilescu Wastewater from winemaking industry: monit... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25175
Environmental Engineering and Management Journal, Vol. 3 Nr. 4
Environmental Engineering and Management Journal › Vol. 3 › Nr. 4 Contain all the articles from this issueICEEM /02 PLENARY SESSION:"Environmental Engineering and Management in the Context of Sustainable Development"Design for sustainability (D4S): towards advanced product conceptsHan Brezet, Sacha SilvesterICEEM/02 - ENVIRONMENTAL ENGINEERING SECTION"Water and Wastewater Treatment Technologies"Complex approach to the problem of persistent organic pollutants degradation in water environmentVictor Covaliov, Olga Covaliova, Angela Cincilei, Gilles Mailhot, Pasca... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25176
Environmental Engineering and Management Journal, Vol. 4 Nr.1
Environmental Engineering and Management Journal › Vol. 4 › Nr. 1 Contain all the articles from this issueBiosorption of Cu2+ ions from aqueous solution by Enteromorpha sp.Loredana Brinza, Matthew Dring, Maria Gavrilescu Environmental impact assessment for steel processingBrindusa Robu, Carmen Zaharia, Matei MacoveanuEnhanced primary treatment of municipal wastewater by ion exchange and membrane processesDaniela Teleman, Peter A. Wilderer, Carmen Teodosiu, Thilo K?¶tzle Best practices in kraft pulping - benefits and costs Dan GavrilescuAspects of waste m... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25177
Environmental Engineering and Management Journal, Vol. 3 Nr. 3 (I)
Environmental Engineering and Management Journal › Vol. 3 › Nr. 3 Contain all the articles from this issueICEEM /02 PLENARY SESSION:"Environmental Engineering and Management in the Context of Sustainable Development"Green technology foresight of high technology: Hype of potentials - The challenges from nanotechnology, Biotechnology and ICTMichael S?¸gaard J?¸rgensenIntrinsic properties of noble metals in catalytic selective reduction of NO by propene in lean burn conditionsAnne Giroir-Fendler, Helleh Saadallah, Adela HaletaICEEM/02 - ENVIRONMENTAL ENGINEERING ... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25178
Environmental Engineering and Management Journal, Vol. 4 Nr. 2
Environmental Engineering and Management Journal › Vol. 4 › Nr. 2 Contain all the articles from this issueCatalysis for heterogeneous photocatalysis. Part II. Methods for synthesisAnca Florentina Caliman, Ion BalasanianpH influence on sonochemical degradation of cyanides with H2O2 and O2Ioan Iordache, Mircea Teodor Nechita, Nicolae Aelenei,Gabriela Apostolescu, Ioan RoscaStudies of various wastewater nitrification bioreactor types based on modelling and simulationDiana Lupasteanu, Florina Ungureanu, Maria Gavrilescu Wastewater from winemaking industry: monitor... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25179
Environmental Engineering and Management Journal, Vol. 4 Nr.3
Environmental Engineering and Management Journal › Vol. 4 › Nr. 3 Contain all the articles from this issueLignin in crop cultivations and bioremediationAlfred Abaecherli, Valentin I. PopaMaterials for intermediate-temperature solid oxide fuel cells and for proton exchange membrane fuel cellsAnnemarie Huijser, Joop SchoonmanAre interfacial biocatalysts important tools for nonpolluting technologies? 2. Immobilization of lipases and their representative applications Brindusa Dragoi, Emil DumitriuUASB treatment of fruit canning wastewater: pilot-scale invest... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25180
Environmental Engineering and Management Journal, Vol. 4 Nr.4
Environmental Engineering and Management Journal › Vol. 4 › Nr. 4 Contain all the articles from this issueNitrous oxide decomposition over Fe-ZSM-5 catalysts prepared by different methodsMircea Teodor Nechita, Ioan Rosca, Daniel Sutiman, Gabriela Apostolescu, Ioan Iordache Geometrical correlation method for global estimation of the ecosystem stateCamelia Popa, Cornel Cojocaru, Matei MacoveanuImmobilized lipases as biocatalysts for organic synthesis 1. Transesterification of ethyl acetate with alcohols in the presence of free Candida antarctica lipase BBrindusa... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25181
Environmental Engineering and Management Journal, Vol. 3 Nr. 3 (II)
Environmental Engineering and Management Journal › Vol. 3 › Nr. 3 Contain all the articles from this issueICEEM/02 - ENVIRONMENTAL ENGINEERING SECTION"Treatment Technologies for Gaseous Fluxes"Surface chemistry studies on molybdena–alumina catalystTatiana Yuzhakova, ?kos R?©dey, Endre Domokos, J??zsef Kov??cs, Monica Caldararu, Cristian Hornoiu, Mariana Carata, G.Postole, Cornel Munteanu, Larisa Strukova, Jozse FazakasHebicidal behaviour of a new N,N'- biquaternary salt of 4,4'- bipyridineServilia Oancea, Marinela Irimia, Gabriela Carja, Anton Airinei, Nicu... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25189
Sensor networks in waste water treatment monitoring
Environmental Engineering and Management Journal › Vol. 6 › Nr. 1 AbstractThis paper presents the architectures of wireless sensor networks integrated in a complex monitoring system for a waste water treatment plant. Presently is a very expressive trend to use wireless technology for smart sensor network communication. The measurement system avoids manual data storage and an Internet server assures remote access from a station with a Web browser. ... Autori: Florina Ungureanu, Marcelin Iulian Balasca ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25190
Environmental Engineering and Management Journal, Vol. 6 Nr. 5
Environmental Engineering and Management Journal › Vol. 6 › Nr. 5 Include urmatoarele articole:â€? Keynote Lectures Energy from municipal solid waste: large-scale incineration or small-scale pyrolysis?â€? Electrical properties of SnO2-Pt/Al2O3 in reduction atmosphereâ€? Corporate management tools to address sustainability Challenges. A reflection on the progress and difficulties experienced during the last decadeâ€? Emerging academic responsibilities and opportunities for promoting regional sustainabilityâ€? Challenges for integrated water resources management... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25200
Environmental Engineering and Management Journal, Vol. 9 Nr. 1
Environmental Engineering and Management Journal › Vol. 9 › Nr. 1 ? Kinetics considerations concerning the oxidative degradation by photo-fenton process of some antibiotics
? Catalytic wet hydrogen peroxide oxidation of 4-chlorophenol over iron-exchanged clays
? Researches on the negative effects assessment (slugging, clogging, ash deposits) developed at the biomass-coal co-firing
? Contribution to the study of the environmental heritage of a former chemical plant
? Impact of chemicals on derivatives with important therapeutic activity in C... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25376
Environmental Engineering and Management Journal, Vol. 6 Nr. 6
Environmental Engineering and Management Journal › Vol. 6 › Nr. 6 Iinclude urmatoarele articole:â€? Phenol degradation in water through a heterogeneous photo-fenton processâ€? Study concerning the influence of oxidizing agents on heterogeneous photocatalytic degradation of persistent organic pollutantsâ€? Nonmarket valuation of acequias: Stakeholder analysisâ€? Metals concentration in soils adjacent to waste depositsâ€? Polyelectrolyte - surfactant complexesâ€? Modelling of sorption equilibrium of Cr(vi) on isomorphic substituted Mg/Zn-Al - type hydrotalcitesâ... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25206
Environmental Engineering and Management Journal, Vol. 7 Nr. 1
Environmental Engineering and Management Journal › Vol. 7 › Nr. 1 Include urmatoarele articole:â€? "Waste not, want not" a study of household attitude toward recycling of solid wastesâ€? A kinetic model for the crystal violet mineralization in water by the electro- fenton processâ€? Development of a coagulation/flocculation predictive model for turbidity removal from tehran water treatment plantsâ€? Removal of cadmium (II) from aqueous solutions by sphagnum moss peat: Equilibrium studyâ€? Environmental sustainability based on fuzzy modelsâ€? Impact of dust emi... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25207
Environmental Engineering and Management Journal, Vol. 7 Nr. 2
Environmental Engineering and Management Journal › Vol. 7 › Nr. 2 Include urmatoarele articole:â€? Synthesis of Ferrierite/ZSM-35 type zeolite with ethylenediamine as templateâ€? Recovery of p-hydroxybenzoic acid from wastewaters by reactive extraction 1. Extraction mechanism and influencing factorsâ€? Relationships between metals extent and cytological characteristics at Prunus persica L. pollenâ€? Smoke Emissions From Diesel Vehicles: A Case Studyâ€? Carbon dioxide generation - implications for romanian pulp and paper industry â€? Enhanced decolorization of ... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25208
Environmental Engineering and Management Journal, Vol. 7 Nr. 3
Environmental Engineering and Management Journal › Vol. 7 › Nr. 3 Include urmatoarele articole:â€? Cost sensitivity analysis by Monte Carlo simulationâ€? Mathematical modeling of gas drying by adsorptionâ€? Methyl isobutyl ketone combustion over Pt/Al2O3 catalystâ€? Distribution of oxygen transfer rate in stirred bioreactors with simulated brothsâ€? Unsteady heat transfer inside an elliptic cylinderâ€? Triphasic external-loop airlift reactors. Hydrodynamic and dispersion studiesâ€? Sustainable combined utilization of renewable forest resources and coal in Roma... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25209
Phenol degradation in water through a heterogeneous photo-fenton process
Environmental Engineering and Management Journal › Vol. 6 › Nr. 6 AbstractA new photo-Fenton catalyst has been manufactured from synthetic layered clay laponite (Laponite RD) by the pillaring technique Eight different catalyst samples were prepared: four without thermal aging (WTA) calcined at 523 0K, 623 0K, 723 0K and 8230 K, and other four with thermal aging (TA) calcined at the same temperatures. The activity of the TA- 623 sample was evaluated in the phenol degradation by the photo - Fenton process. The influence of five important operating factors has be... Autori: Beatrice Iurascu, Ilie Siminiceanu, Miguel Vincente ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25210
Study concerning the influence of oxidizing agents on heterogeneous photocatalytic degradation of persistent organic pollutants
Environmental Engineering and Management Journal › Vol. 6 › Nr. 6 AbstractIn this paper, the application of the heterogeneous photocatalysis in degradation of a cationic copper phtalocyanine dye, used as model of persistent organic compound is investigated by assessing the efficiency of the process. The influence of hydrogen peroxide on the photocatalytic process is studied using two types of commercial catalysts, such as TiO2 Degussa (88% anatase, 20% rutile) and TiONa Millennium (100% anatase). Another electron acceptor, FeCl3 is also used for investigation ... Autori: Anca Florentina Caliman, , , Ioannis Poulios, Maria Gavrilescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25211
Nonmarket valuation of acequias: Stakeholder analysis
Environmental Engineering and Management Journal › Vol. 6 › Nr. 6 AbstractFrom a traditional market economy perspective, the productivity attained when water and land is used for acequias is much lower than the productivity achieved when applying these same resources to urban and industrial uses. An analysis of key stakeholders has indicated that there are cultural and environmental attributes of acequia agriculture landscapes that are not captured in the market-assigned value of acequias. This analysis revealed the motivations behind the value placed on acequ... Autori: Joseph Ulibarri, Steven Archambault ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25212
Metals concentration in soils adjacent to waste deposits
Environmental Engineering and Management Journal › Vol. 6 › Nr. 6 AbstractThe paper presents original results concerning concentrations of eight heavy metals in soils adjacent to two improperly built municipal waste deposits located in Eforie Sud and Techirghiol, Constanta County, Romania. Measurements have been done on surface and depth soils, during April-October 2006. The applied analytical technique for metal determination was flame atomic absorption spectrometry (FAAS). The mean measured values ranged as follows (in mg/kg dry weight): Cd: 0.09 - 0.15; Co:... Autori: , Elisabeta Chirilă, Narcisa Elena Ilie ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25213
Polyelectrolyte - surfactant complexes
Environmental Engineering and Management Journal › Vol. 6 › Nr. 6 AbstractThe formation of the polyelectrolyte- surfactant complexes has been studied. On this purpose has been measured the critical micelle concentration for every polyelectrolyte and surfactant which had been used. The phase behaviour of mixtures of a cationic polyelectrolyte (Praestol 611) and an anionic surfactant (sodium lauryl sulphate - SLS) has been studied. For a given polyelectrolyte concentration, with increasing surfactant concentration, three phase regions were identified. The first ... Autori: Cristina Costache, Gabriel Dabija, Mihaela Mihai ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25214
Microwave-assisted chemistry. A review of environmental applications
Environmental Engineering and Management Journal › Vol. 6 › Nr. 6 AbstractThe extraction of some pollutants from different matrices, the treatment of hazardous and infectious wastes, the destruction of refractory compounds and the prevention of noxious emissions are the main environmental applications of microwave-assisted chemistry. The advantages and disadvantages of this technique are also considered.... Autori: Carmen Zaharia, Georgiana G. Surpăţeanu, Mioara Surpăţeanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25217
Environmental pollution with VOCs and possibilities for emission treatment
Environmental Engineering and Management Journal › Vol. 6 › Nr. 6 AbstractVolatile organic compounds (VOCs) constitutes an important class of environmental pollutants, which, together with other contaminants as NOx, SOx, CO, NH3, CO2 etc. participate in degradation of atmosphere and exhibit a potential risk for human health. VOC emissions may be generated in more than 25 percentages through the use of solvents in different industrial or house holding activities. For applying a certain plan concerning the pollution reduction, any user of organic solvents contai... Autori: Florin Bandrabur, Ion Balasanian, Liliana Lazar ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25218
Sustainable irrigation based on intelligent optimization of nutrients applications
Environmental Engineering and Management Journal › Vol. 6 › Nr. 6 AbstractThe present paper proposes the design of a modules system of measurement and control of data distributed transmission, implemental on automatic irrigation systems of central pivot or linear movement type. By this it is intended to obtain a complex irrigation system that allows optimization of nutrient application.... Autori: Codrin Donciu, Marinel Temneanu, ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25219
Synthesis, characterization and catalytic reduction of NOx emissions over LaMnO3 Perovskite
Environmental Engineering and Management Journal › Vol. 6 › Nr. 6 AbstractThe perovskite structure was synthesized by sol-gel method type citrate. Three perovskite LaMnO3 samples were obtained after calcination and were characterized by XRD, XPS and TPR. The catalytic testing was carried out in SCR-HC equipment (HC=C3H6 and C3H6 respectively) in presence and also in absence of oxygen atmosphere. The results pointed out a good activity in NOx reduction but only in oxygen absence. As it was expecting, LaMnO3 perovskite has shown a good activity for hydrocarbons ... Autori: Helmut Papp, Ion Balasanian, Liliana-Mihaela Chirilă, Wladimir Suprun ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25222
Kinetics of carbon dioxide absorption into aqueous solutions of 1, 5, 8, 12- tetraazadodecane (APEDA)
Environmental Engineering and Management Journal › Vol. 6 › Nr. 6 AbstractThe absorption of CO2 into an aqueous solution with 1.45 mol/L 1,5,8,12-tetraazadodecane (APEDA) polyamine has been studied at three temperature (298, 313, 333 K) in a Lewis type absorber with a constant gas-liquid interface area of (15.34 ± 0.05) x 10-4 m2. The experimental results have been interpreted using the equations derived from the two film model with the assumption that the absorption occurred in the fast pseudo- first- order kinetic regime. The results confirmed the validity ... Autori: Chakib Bouallou, Ilie Siminiceanu, Ramona-Elena Tataru-Farmus ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25223
Study of increasing soil fertility into a site with high electric field around using polymeric conditioning agent
Environmental Engineering and Management Journal › Vol. 6 › Nr. 6 AbstractThis paper discusses the applications of synthetic PONILIT GT-2 anionic polyelectrolyte as soil conditioning agent into a site with high electric field around. All experimental data conclude that the use of a polymeric conditioning agent was increased the soil ability to support vegetation expressed as germination degree for some grass species (e.g., Raigras aristat). The performed values for germination degree increase from 3.05 % to 12.20 % when was added fertilized soil, and respectiv... Autori: Carmen Zaharia, Ioan Ivanov Dospinescu, Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25225
Methods and procedures for environmental risk assessment
Environmental Engineering and Management Journal › Vol. 6 › Nr. 6 AbstractThis work presents the state of the art of qualitative and quantitative risk assessment methodologies in a variety of fields. Because risk exists in all ranges of human activity, both private and professional, risk assessment is an attempt to analyze precipitating causes of risk in order to more efficiently reduce its probability and effects. Numerous methodological guidelines within the field of environmental science exist to provide guidance for a risk assessment program, although the ... Autori: , , Florentina Anca Căliman, Maria Gavrilescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25226
A kinetic model for the crystal violet mineralization in water by the electro- fenton process
Environmental Engineering and Management Journal › Vol. 7 › Nr. 1 AbstractThe mineralization of acidic aqueous solutions with 0.166 to 1.333 mM Crystal Violet (CV) in 50 mM Na2SO4 as background electrolyte has been studied by the electro- Fenton method, where the oxidizing hydroxyl radicals were produced from the Fenton reaction between added ferrous ions and hydrogen peroxide generated at a oxygen- diffusion cathode. The influence of a new operating factor on the mineralization degree has been investigated: anode material (platinum versus boron doped diamond)... Autori: Carmen-Ionela Alexandru, Eric Brillas, Ilie Siminiceanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25229
Development of a coagulation/flocculation predictive model for turbidity removal from tehran water treatment plants
Environmental Engineering and Management Journal › Vol. 7 › Nr. 1 AbstractAluminum and ferric salts are widely used as coagulants in water and wastewater treatment. They are effective in removing a broad range of impurities from water, including colloidal particles and dissolved organic substances. As well as traditional additives, such as aluminum sulphate ("alum") and ferric chloride, other products containing prehydrolized metal ions such as polyaluminum chlorides are now commonly used. The aim of this study was to develop a model for coagulation/flocculati... Autori: Avid Banihashemi, Manouchehr Nikazar, , Reza Maknoon ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25230
Removal of cadmium (II) from aqueous solutions by sphagnum moss peat: Equilibrium study
Environmental Engineering and Management Journal › Vol. 7 › Nr. 1 AbstractCadmium is listed by US-EPA as one of priority pollutant and as a known carcinogen, and therefore its removal from wastewaters of various industrial processes is a very important environmental problem. The paper analyzes the effectiveness of a Romanian sphagnum moss peat as available and cheaper sorbent in removal of Cd (II) from aqueous solutions. Batch sorption experiments were carried out in order to establish the influence of solution pH, peat dose, contact time and initial cadmium c... Autori: Catalin Balan, , Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25231
Impact of dust emission on plant vegetation in the vicinity of cement plant
Environmental Engineering and Management Journal › Vol. 7 › Nr. 1 AbstractEnvironment is a major issue which confronts industry and business in today's world on daily basis. Different industrial activities are degrading various environmental components like water, air, soil and plant vegetation. Cement industry is one of the 17 most polluting industries listed by the Central Pollution Control Board (CPCB). The Jaypee Rewa Cement Cement industry, Rewa, Madhaya Pradesh is located between 24o 33' North longitude and 81o 10' east latitude and is situated at Jay Pr... Autori: Baby Sunisha, Nagpure Ajay Singh, Shrivastava Preeti, Shukla Ravindra Nath, Shukla Sudheer Kumar, Singh Deepali, Vivek Kumar ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25233
Mineralization of two phenyl urea herbicides in water by a heterogeneous photo-Fenton process
Environmental Engineering and Management Journal › Vol. 7 › Nr. 1 AbstractThe paper presents new experimental results on the photodegradation of two important phenyl urea herbicides in water: Monuron and Isoproturon. The photodegradation was performed by two Advanced Oxidation Processes (AOPs): the homogeneous photo- Fenton process (, UV-H2O2 - Fe3+) and a heterogeneous photo - Fenton reaction using an iron pillared Laponide- RD catalyst (Fe-Lap-RD). The Fe-Lap-RD catalyst was prepared from iron nitrate 0.2 M solution and a suspension of Laponite - RD clay. Th... Autori: Elsa Lundanes, Ilie Siminiceanu, Maria-Magdalena Bobu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25234
Comparative corrosion study of non-precious Ni/Cr- based soft alloys in view of dental applications
Environmental Engineering and Management Journal › Vol. 7 › Nr. 1 AbstractBased on the polarization curves and electrochemical impedance spectroscopy (EIS) in the case of three commercial alloys (Wirolloy, NicromalSoft and VeraSoft) maintained in artificial saliva, it was established the type and the intensity of the corrosion process by means of the corrosion currents value. The passivation of all the samples occurred spontaneously at the open circuit potential. The corrosion currents value decrease after the alloys maintenance in the corrosive medium due the... Autori: Daniel Mareci, Gina Ungureanu, Julia Claudia Mirza Rosca, Neculai Aelenei ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25235
Surfactant - modified natural zeolites for environmental applications in water purification
Environmental Engineering and Management Journal › Vol. 7 › Nr. 2 AbstractThis paper presents an overview of research related to use of surfactant modified natural zeolites (SMZ) in water and wastewater treatment. The most common natural zeolite, widely used as starting material is clinoptilolite, but other natural zeolites have also been used (chabasite, heulandite, mordenite). In the first part, the preparation methods and the influence of process parameters on the final product properties is reviewed. The discussion is focused on the influence of surfactant... Autori: , Cezar Catrinescu, Roxana Elena Apreutesei ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25241
Pulsed plasma treatment of surface water using lowtemperature corona reactor
Environmental Engineering and Management Journal › Vol. 7 › Nr. 2 AbstractThe disinfection of water containing microorganisms by exposure to pulsed-discharge plasma using a low-temperature gas-liquid hybrid discharge (HD) reactor was studied.The HD reactor consists of a plexiglas cylinder containing the liquid of high voltage electrode above liquid' s surface and grounded electrode submerged in the liquid. The HD could produce both arc discharges in gas and liquid phases. The high-energy plasma arc produces a pressure shock wave, which kills the targeted micro... Autori: Gamal M. El-Aragi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25242
Evaluation of lead pollution in Bucharest. Part II: Theoretical aspects of risk management strategy for impact of lead on human health
Environmental Engineering and Management Journal › Vol. 7 › Nr. 2 AbstractDespite its well known toxic effects, lead continues to be a part of modern life. Lead concentrations in the environment have increased steadily throughout history, with a huge increase when lead became a common additive to paint and gasoline. Although the use of lead in gasoline and most paint has been banned in many countries, there are still many ways for lead to be released on the environment. The effects of lead on human health have been the subject of significant international exam... Autori: Alina Murariu, Aurelia Meghea, Ioana Lacatusu, Mihaela Mihai ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25244
Enhanced decolorization of reactive blue 19 dye from synthetic textile wastewater through uv photolysis in alkaline conditions
Environmental Engineering and Management Journal › Vol. 7 › Nr. 2 AbstractLaboratory scale experiments were conducted in order to investigate the photolysis of Reactive Blue 19 (RB 19) dye using UV as the irradiation source in alkaline solution. The effects of operating parameters such as, pH, initial dye concentration, UV dosage, hydrogen peroxide and oxygen have been evaluated. The results indicate that the UV photolysis process in alkaline solution is ideal for decolorizing of RB 19 and it can be taken as a starting step to establish the economical feasibil... Autori: Abbas Rezaee, Ebrahim Hajizadeh, Gholamreza Mosavi, Mohamadtaghi Ghaneian, Seyyed Jamalodin Hashemian ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25245
Carbon dioxide generation - implications for romanian pulp and paper industry
Environmental Engineering and Management Journal › Vol. 7 › Nr. 2 AbstractAs a member of the European Union, and as part of the Kyoto Protocol, Romania has the obligation to implement environmental legislation regarding greenhouse gases (GHG) and to take appropiate actions for emissions reduction. The paper deals with Romanian GHG legislation and with its requirements concerning monitoring, reporting and reduction of GHG emissions, within the field of pulp and paper manufacturing.... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25246
Smoke Emissions From Diesel Vehicles: A Case Study
Environmental Engineering and Management Journal › Vol. 7 › Nr. 2 AbstractWith a greater emphasis on the increasing number of diesel vehicles provided with pollution control systems complying to regulatory standards these days than ever before, it is also necessary to look into the emission characteristics of the diesel vehicles with respect to vehicle-related parameters with a view to ascertain as to how the tail pipe emission from the diesel vehicles could be kept under control by adopting suitable strategies. Considering the constraints of data collection a... Autori: Manoranjan Parida, Mishra Rajeev Kumar, Pandey Govind ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25248
Relationships between metals extent and cytological characteristics at Prunus persica L. pollen
Environmental Engineering and Management Journal › Vol. 7 › Nr. 2 The heavy metal concentrations exceeding the standard admissibility, determine modifications of some cytological parameters. Therefore, by this paper, there were determined the concentrations of copper, iron, manganese and zinc from Prunus persica L. pollen grains (Research-Development Fruitgrowing Station, Constantza, Romania) using wet digestion followed by flame atomic absorption spectrometry (FAAS). Then, the main cytological parameters (such as citological viability and germination capacity... Autori: Dan Mandalopol, Elena Doroftei, Manuela Rotaru-Stancic, Simona Dobrinas ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25249
Recovery of p-hydroxybenzoic acid from wastewaters by reactive extraction 1. Extraction mechanism and influencing factors
Environmental Engineering and Management Journal › Vol. 7 › Nr. 2 AbstractThe comparative study on reactive extraction of p-hydroxybenzoic acid with Amberlite LA-2 and D2EHPA in two solvents with different polarity (n-heptane and dichloromethane) indicated that the extractant type and solvent polarity control the extraction mechanism. Thus, the reactive extraction with Amberlite LA-2 occurs by means of the interfacial formation of an aminic adduct with three extractant molecules in low-polar solvent, or of an salt with one extractant molecule in higher polar s... Autori: Anca-Irina Galaction, Dan Caşcaval, Maria Cămăruţ ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25250
Smart soluble grafted polysiloxanes with potential applications in waterborne paints
Environmental Engineering and Management Journal › Vol. 7 › Nr. 3 AbstractThe synthesis of some grafted polysiloxane and azo-polysiloxanes with potential applications as rheology modifiers or surfactants for waterborne paints is reported. Nowadays it became very important to design environmentally friendly systems exhibiting the best end-uses properties. Due to their complex architecture and their sensitivity to UV radiation the studied polymeric systems exhibit very interesting rheological properties. All the polymers containing the azobenzenic groups in the ... Autori: Constanta Ibanescu, Ioana Moleavin, Iulian Nor, Nicolae Hurduc, Viorel Sandu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25252
Analytical approach to estimate the air flow rate in the boundary layer of a heated furnace wall
Environmental Engineering and Management Journal › Vol. 7 › Nr. 3 AbstractThe critical analysis of the transfer processes intensification techniques is carried out by identification of the methods that can be applied, regardless of the process nature. The main priority is the development of a consistent methodology that will represent the basis of specific practical methods development by establishing a theoretical frame for studying the heat transfer processes. The main purpose is to reduce the stationary time of the charge in the installation, accomplishing ... Autori: Adrian Dima, Alina Adriana Minea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25253
Improving energy efficiency in water distribution systems based on water consumption profiling
Environmental Engineering and Management Journal › Vol. 7 › Nr. 3 AbstractTogether with other public utilities, water supply systems management aims to provide an efficient operation of the system and lower operational costs. In complex water distribution systems there is a large variety of consumers, which differ from one another not only by values of inflows, but also by how this inflows vary from hour to hour. This paper presents a self-organizing based approach to the problem of classification of water consumption profiles from the nodes of a water distrib... Autori: Gilda Gavrilaş, Mihai Gavrilas ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25254
Refractive indices of the binary systems iso - propanol - water and iso-propanol - toluen
Environmental Engineering and Management Journal › Vol. 7 › Nr. 3 AbstractThe paper reports experimental refractive indices of binary systems iso-propanol - water and iso-propanol - toluene over the entire range of composition at different temperature. Excess refractive indices were evaluated from the experimental data obtained. This derived property was fitted to variable-degree polynomials. The results obtained have been discussed and interpreted in terms of the type and nature of the specific intermolecular interactions between the components.... Autori: Catalin Lisa, Cerasela Huhurez, Gabriela Lisa, Ramona-Mihaela Matran ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25256
Sorption of cationic dyes from aqueous solution onto natural clay. Equilibrium and kinetic study
Environmental Engineering and Management Journal › Vol. 7 › Nr. 3 AbstractEquilibrium and kinetic studies regarding the sorption of the copper phtalocyanine dye Alcian Blue 8 GX were carried-out within batch experiments. The sorption equilibrium revealed that the pure natural clay can uptake up to 18 mg of Alcian Blue 8 GX per 1 g mass of clay. The cationic dye sorption was best fitted by Freundlich model that is applicable to sorption on heterogeneous surfaces (surfaces with non-equivalent energetic sites). The pseudo-second order kinetic model may be efficie... Autori: , Maria Gavrilescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25257
Effects of coagulants on the DCS accumulation in process water of papermaking
Environmental Engineering and Management Journal › Vol. 7 › Nr. 3 AbstractAdvanced closing of paper machine circuits results in the accumulation of the dissolved and colloidal substances (DCS) in the process water. At a critical concentration, the DCS are destabilizing even by small variations in paper machine parameters, producing operational and product quality problems. This article presents results of lab experiments simulating the process water recycling in short circuit of paper machine, without and with addition of fixing agents. Tests were performing w... Autori: Dan Belosinschi, Elena Bobu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25261
Quantification of impact and risk induced in surface water by heavy metals: Case study - Bahlui River Iasi
Environmental Engineering and Management Journal › Vol. 7 › Nr. 3 AbstractThe purpose of this paper was to quantify the environmental impact and risk applying a new integrated method designed as a soft SAB. The evaluation of impact and risk induced in environment was performed for surface waters (Bahlui River, IaÂ?i), considering the presence of some minerals and heavy metals in surface water in high concentrations. The new method for integrated environmental impact and risk assessment that considers the pollutants concentration levels in surface water w... Autori: Brindusa Robu, Dumitru Bulgariu, Laura Bulgariu, Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25262
Synthesis of highly ordered titanium-containing SBA-15 mesoporous silicas for catalytic eco-friendly oxidations
Environmental Engineering and Management Journal › Vol. 7 › Nr. 3 AbstractMesoporous Ti-SBA-15 materials have been synthesized up to a Si/Ti ratio of 20 using a two-step pH adjusting method. Low angle X-ray diffraction and diffuse reflectance UV-Vis spectroscopy revealed that the optimal pH value to synthesize highly ordered mesoporous solids having Ti atoms primarily in tetrahedral coordination environments is around 7.5. The nitrogen physisorption and TEM indicated also ordered mesostructures having relatively large surface areas and uniform mesopore size di... Autori: Adrian Ungureanu, Alexandru Chirieac, Brindusa Dragoi, Cezar Catrinescu, Emil Dumitriu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25263
Study on new complex compounds of Ti(IV) and Zr(IV) in aqueous solutions: synthesis, stability and application in cleaner technologies of natural leather
Environmental Engineering and Management Journal › Vol. 7 › Nr. 3 AbstractIn this paper, the study of synthesis and stability in aqueous solutions of new coordination compounds of Ti(IV) and Zr(IV) with ligand N-hydroxy-succinimide is presented. The salts: TiOSO4·2H2O and ZrOCl2·8H2O used for obtaining the studied coordination complexes, can derive from recycling metallic residues resulted in mechanical technologies applied for titanium and zirconium in S.C. ZIROM S.A. Giurgiu.The new complexes were synthesized in aqueous solutions and stability were study u... Autori: Adrian Cailean, Daniel Sutiman, Doina Sibiescu, Gabriela Apostolescu, Ioan Roşca, Marian Crudu, Mihaela Vizitiu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25265
Textural properties of chabazite crystalized from Cs+, Na+ - aluminosilicate gels
Environmental Engineering and Management Journal › Vol. 7 › Nr. 3 AbstractZeolites Cs+, Na+-chabazite with SiO2 /Al2O3 ratio of 7 were prepared from gels with molar composition (2.41-2.73)(Cs+ + Na+)2O : (0.02 TPAOH) : Al2O3 : 7.21 SiO2 : (194-204) H2O in static hydrothermal conditions at 108 – 132 0C for 8-21 days. The solids were characterized by X - ray diffraction, scanning electron microscopy, thermal analysis and nitrogen sorption measurements. The nitrogen sorption isotherms at -1960C present a hysteresis loop which is indicative for the existence of ... Autori: Ionela Droahna, Iuliean Asaftei, Nicolae Bilba ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25266
Triphasic external-loop airlift reactors. Hydrodynamic and dispersion studies
Environmental Engineering and Management Journal › Vol. 7 › Nr. 3 AbstractConsidering that three-phase dispersions are common in chemical engineering and biotechnology, and with increasing airlift reactor applications to chemical and biotechnological processes, a experimental study was undertaken in order to investigate the liquid phase hydrodynamics and dispersion in an external-loop airlift reactor on laboratory scale. Experiments were conducted in order to find a relationship between relevant hydrodynamic and mixing parameters of a solidsuspended exter... Autori: Florina Ungureanu, Maria Gavrilescu, Radu Z. Tudose ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25268
Distribution of oxygen transfer rate in stirred bioreactors with simulated broths
Environmental Engineering and Management Journal › Vol. 7 › Nr. 3 AbstractThe study on distribution of oxygen transfer rate for a stirred bioreactor and simulated broths was carried out for four positions inside the broth and indicated the significant variation of kla on the bioreactor height. For all considered positions, kla initially increased to a maximum value with mixing intensification, decreasing then, as the result of the modification of mixing mechanism in presence of air bubbles. The increase of broth viscosity led to the significantly reducing of o... Autori: Adina Segneanu, Anca-Irina Galaction, Dan Caşcaval, Radu Z. Tudose ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25270
Methyl isobutyl ketone combustion over Pt/Al2O3 catalyst
Environmental Engineering and Management Journal › Vol. 7 › Nr. 3 AbstractCatalytic combustion of methyl isobutyl ketone in diluted air streams over Pt/Al2O3 commercial catalyst was experimentally investigated. The experiments were carried out at space velocities between 180 000 - 600 000 cm3/ (gcat·h) and ketone concentrations in the range of 900 - 2600 ppmv. On the studied domain of working parameters, carbon monoxide was not detected, although some organic intermediates were formed (especially acetic acid). Their presence was detected in the product mixtur... Autori: Anamaria Soare, Cristina Gheorghiu, Grigore Bozga, Magdalena Boşomoiu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25271
Cost sensitivity analysis by Monte Carlo simulation
Environmental Engineering and Management Journal › Vol. 7 › Nr. 3 AbstractThe cost sensitivity analysis of a chemical process was carried out through a sequence of three stages, using three different software applications. In the first stage an alkylation process was optimized with GAMS® software, the objective function being the profit. This optimization was repeated for the values of five different costs in the frame of a factorial experiment. In the next stage, the objective function-costs dependence was quantified with an artificial neural network, obtain... Autori: Alexandru Woinaroschy ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25273
Municipal solid waste management in developing countries: A perspective on Vietnam
Environmental Engineering and Management Journal › Vol. 7 › Nr. 4 AbstractEnvironmental pollution has posed and continues to cause specific to and complicated problems. The unsustainable production and consumption patterns result in waste that can harm health and the environment. Because of rapid population growth and urbanization, industrialization process and rural to urban migration, solid waste management is becoming more and more critical now, being a problem in rapidly growing urban centers in developing countries. All these threaten the health and well-... Autori: Abdelnaser Omran, Maria Gavrilescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25275
Research on the impact induced in the environment bymilk processing industry 4. The impact induced by the ecological dairy farm Panaci (Suceava)
Environmental Engineering and Management Journal › Vol. 7 › Nr. 4 AbstractThe investigation focused on the impact on the environment caused by a dairy farm which supplies SC CAMYLACT LTD Panaciwith raw materials, a milk processing unit whose impact on the environment was analyzed. The material balance for the activityon the farm was resized and, thanks to this, the synthetic indicators of the impact on the environment, such as the specificinfluents of materials and specific effluents could be calculated.... Autori: Constantin Hutupas, Mihai Nicu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25276
Performance of traffic noise models for metropolitan cities
Environmental Engineering and Management Journal › Vol. 7 › Nr. 4 AbstractIn India, transportation sector is growing fast and the number of vehicles on Indian roads is increasing at a rate more than 7 percent a year. During the period of 50 years from 1951 to 2001, the number of vehicles has increased from 0.3 million to 43 million i.e. an increase of almost 143 times. This has led to overcrowded roads and noise pollution. The transportation sector is one of the major contributors to noise in urban areas, accounting to as much as 55 percent of total noise on t... Autori: Arvind Kumar Shukla, Jyoti Bhushan Srivastava, Manoranjan Parida, Sukhvir Singh Jain ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25279
Studies on heat treatment of an AlCu4Mg1 alloy
Environmental Engineering and Management Journal › Vol. 7 › Nr. 4 AbstractThis paper presents experimental and theoretical studies regarding the behavior after heat treatment of an AlCu4Mg1 aluminum alloy with positive effect on corrosion resistance. On the basis of these experiments and the regression data obtained, an analysis regarding the influence of heating parameters on quenching and aging in order to obtain a certain stress was made. Two cases were considered: stress and quenching temperature are fixed and aging temperature was determined; stress and a... Autori: Adrian Dima, Alina Adriana Minea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25281
Global dimming - An environmental hypothesis on climate change
Environmental Engineering and Management Journal › Vol. 7 › Nr. 4 AbstractThe paper approaches studies of projections of future climate change that use a hierarchy of coupled ocean/atmosphere/seaice/ land-surface models to provide indicators of global response as well as possible regional patterns of climate change. It is evidenced that, after the global warming, a new phenomenon that occurs in the terrestrial atmosphere has drawn the attention of the scientific community. It is called global dimming - the decrease of the solar beams capacity (infrared, visibl... Autori: Catrinel-Raluca Giurma-Handley, Constantin-Marin Antohi, Ioan Crăciun, Ion Giurma ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25285
Environmental Engineering and Management Journal, Vol. 9 Nr. 3
Environmental Engineering and Management Journal › Vol. 9 › Nr. 3 ? Denitrifying activity of activated sludge in suspension and in biofilm? Denitrifying potential of an activated sludge derived consortium? Biosorption of hexavalent chromium based on modified Y zeolites obtained by alkali-treatment? Identifying anaerobic digestion models using simultaneous batch experiments? Olive mill wastewater as a renewable resource? Influence of innoculum acclimation in the biodegradation rate and estimated biodegradbility of cow manure, food waste and oil? Studies on the ... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25378
Separation of uranium(vi) from soils by extraction in aqueous PEG (1550) - Na2SO4 - Na2CO3 two-phase systems. I. Preliminary results
Environmental Engineering and Management Journal › Vol. 7 › Nr. 4 Abstract In this paper preliminary results of studies concerning the extraction of uranium(VI) from soils in aqueous PEG (1550) 20 % - Na2SO4 20 % - Na2CO3 10-2-10-3 M two-phase systems are presented, as well as the spectrophotometric determination of extracted uranium with pirocatechol violet (PV). A special attention was given to the experimental factors (pH, redox potential, CO32- anion concentration and initial uranium concentration), which was found to influence both the formation and stabi... Autori: Daniel Condorachi, Doru Juravle, Dumitru Bulgariu, Laura Bulgariu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25290
Removal of nickel from aqueous solution by Nordmann FIR (ABIES Nordmanniana (STEV.) SPACH SUBSP. Nordmanniana) cones
Environmental Engineering and Management Journal › Vol. 7 › Nr. 4 AbstractBiosorption an alternative process is the uptake of heavy metals from aqueous solutions by biological materials. The biosorption of nickel ions from aqueous solution was investigated by Nordmann fir (Abies nordmanniana (Stev.) Spach. subsp. nordmanniana) in a batch adsorption system as a function of pH, initial metal concentration, biomass dosage, contact time. The data showed that the maximum pH for efficient sorption of Ni(II) was 6.5. At the optimal conditions, Ni(II) ion biosorption ... Autori: Handan Ucun, Ozkan Aksakal, Yusuf Kaya ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25295
Biomass power for energy and sustainable development
Environmental Engineering and Management Journal › Vol. 7 › Nr. 5 AbstractThe paper discusses some aspects concerning the utilization of biomass as a bioenergy resource worldwide and in Romania, since biomass is considered a sustainable, potentially environmentally sound and a replenishable resource. The biomass categories for bioenergy are analyzed, considering the factors which influence its availability. Biomass energy potential and current use in different regions as well as in Europe is accounted. Also, biomass power as an important alternative for ... Autori: Maria Gavrilescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25298
Microbial cellulose as support material for the immobilization of denitrifying bacteria
Environmental Engineering and Management Journal › Vol. 7 › Nr. 5 AbstractThe purpose of this study was to investigate the immobilization of denitrifying bacteria on microbial cellulose (MC) for biological denitrification. A novel denitrifying bacterium, Pseudomonas stutzeri, was immobilized in microbial cellulose and introduced into an up flow packed bed reactor in order to remove nitrate from synthetic influent. The MC presented the high biomass concentration throughout the experiment, achieving 3.4 mg biomass/g support. The efficiency of the system for deni... Autori: Abbas Rezaee, Hatam Godini, Hossein Bakhtou ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25302
Valorification of herbs in phytotherapy - an alternative of chemical treatments in agriculture
Environmental Engineering and Management Journal › Vol. 7 › Nr. 5 AbstractIn agricultural culture there are numerous weeds diminishing the production which are controlled by several methods. The most common and efficient method with the modern agriculture is the chemical method of controlling weeds, using a large range of herbicides. A great part of these herbicides have long lasting remanence, even over three years. A great part of the active substances of the herbicides pollute the soil and subsequently the waters, sometimes with disastrous action for the en... Autori: Brindusa Robu, Sabina Robu, Teodor Robu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25303
Phytoremediation: the application of vermicompost to remove zinc, cadmium, copper, nickel and lead by sunflower plant
Environmental Engineering and Management Journal › Vol. 7 › Nr. 5 AbstractA greenhouse experiment was conducted to determine the phytotoxic effect of heavy metals such as Cd, Cu, Ni, Pb and Zn on the growth of Sunflower (Helianthus annuus): on the seed germination, root/shoot growth and uptake of metals in soil-vermicompost media. The selected metals were dosed at various concentrations ranging from 0, 5, 10, 20, 40 and 50 ppm separately in soil - vermicompost media (3:1) in pot experiment. The seed germination, root and shoot growth were found significantly a... Autori: Chhotu D. Jadia, Madhusudan H. Fulekar ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25306
Effect of methanogenic inhibitors, inocula type, and temperature on biohydrogen production from food components
Environmental Engineering and Management Journal › Vol. 7 › Nr. 5 AbstractDark fermentation hydrogen production from a mixture of food components using two different methods of methanogenic inhibition (autoclaving and BES) and three different temperatures (37, 60, and 70 Â?C) was examined in batch assays for two different mixed anaerobic cultures - one suspended sludge (S) obtained from an anaerobic digester and one granular sludge (G) obtained from a brewery wastewater treatment plant. In general, BES-inhibition of sludge was more robust when compared against... Autori: Angela A. Abreu, Anthony S. Danko, Francisco Pinheiro, Maria Madalena Alves ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25308
Wood-based epoxy resins and the ramie fiber reinforced composites
Environmental Engineering and Management Journal › Vol. 7 › Nr. 5 AbstractWood-based epoxy resin was synthesized from resorcinol-liquefied wood. First, wood components were depolymerized and liquefied by reaction with resorcinol. The resorcinol-liquefied wood with plenty of hydroxyl groups could be considered as a precursor for synthesizing wood-based epoxy resin. Namely, the phenolic-OH groups of the liquefied wood reacted with epichlorohydrine under alkali condition. By the glycidyl etherification, epoxy functionality was introduced to the liquefied wood. Th... Autori: Akira Fujita, Hajime Kishi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25310
Environmental Engineering and Management Journal, Vol. 7 Nr. 5
Environmental Engineering and Management Journal › Vol. 7 › Nr. 5 Include urmatoarele articole:â€? Biomass - A source of chemicals and energy for sustainable development â€? Equilibrium study of Pb(II) and Hg(II) sorption from aqueous solutions by moss peatâ€? Wood-based epoxy resins and the ramie fiber reinforced compositesâ€? Studies on the interaction between birch veneer and compounds with biocide potential actionâ€? Effect of methanogenic inhibitors, inocula type, and temperature on biohydrogen production from food componentsâ€? Energy from biomass in pul... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25313
Quality analysis of the soils in the Cordun metallurgical platform area
Environmental Engineering and Management Journal › Vol. 7 › Nr. 6 AbstractThe present article deals with the study of the quality of the soils in the Cordun area – the waste dump. This refers to the characteristics of the analyzed location site (geomorphological, geological considerations, the pedological and agrochemical characterization of the soils in the area outside the plant), but also to the establishment of the pollution rate in the location site (experimenata data, results and debates). The conclusion of the present article is that the analyzed area... Autori: Elena Doinita Carlig, Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25315
Studies on the influence of irrigation on a calcic chernozem in the eastern region of Romania
Environmental Engineering and Management Journal › Vol. 7 › Nr. 6 AbstractThe Romanian strategy in the field of irrigations for the years of 2008-2011 consists of the modernization of the existing works covering about 3.1 mil. ha, while for the years of 2011-2025 the irrigation of additional area of 0.9 mil. ha is expected. In the climate conditions of Romania, the irrigation has a complementary character over the precipitations. Because of this reason, a correct regime of irrigations needs a very good correlation between watering and precipitations in order t... Autori: Dorin Cotiusca Zauca, ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25317
Quantification of environmental impact and risk induced by industrial activities on ground water quality: Case study Cordun - Roman area, Romania
Environmental Engineering and Management Journal › Vol. 7 › Nr. 6 AbstractThe question of whether environmental assessment has achieved its goal of helping to reach better decisions has continually engaged the attention of academics, policy makers and environmental impact assessment practitioners. Answering this question requires several different groups working together and/or in sequence, and examining the effectiveness of environmental impact and risk assessment. EIA has tended to focus on the identification of impacts associated with planned activities or ... Autori: Brindusa Robu, Elena Doinita Carlig, Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25321
The Gorgon method as a tool in sustainable behavior and development
Environmental Engineering and Management Journal › Vol. 7 › Nr. 6 AbstractThe paper proposes a solution for life quality improvement by changing the individual’s mentality and creating a sustainable behavior. The solution consists of the development of a psycho-behavioral pattern starting from the Gorgon experiences. The latter are hurtful experiences in the individual’s life the effect of which is a complete or partial emotional components blockage. The hindrance of these components performance affects the individual’s behavior, placing him or her in a ... Autori: Brindusa Robu, , Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25323
Environmental engineering education in Iran: needs, problems and solutions
Environmental Engineering and Management Journal › Vol. 7 › Nr. 6 AbstractSince public concerns about the environmental issues have increased, several universities all over the world have been establishing environmental engineering programs. Environmental engineering programs in Iran at graduate level have been developed since 1990. At the present time, there are ten universities are presenting environmental engineering programs at graduate levels. The environmental engineering education systems of almost all Iran universities are quite traditional. As the env... Autori: Ahmad Tahershamsi, , Reza Maknoon ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25324
Identification, communication and management of risks relating to drinking water pollution in Bihor county
Environmental Engineering and Management Journal › Vol. 7 › Nr. 6 AbstractAt global level, the microbiological quality of water is a matter of concern, since diarrhoea represents the second cause of mortality. In addition, nitrates represent a significant problem and their high concentration - above the accepted limits - in drinking water is frequently encountered in Romania. Water samples have been analyzed in accordance with the methodology recommended by The Public Health Institute Bucharest. 78.15% of the water samples evaluated during the interval 2004-20... Autori: Claudia Sarmasan, Lucia Daina, Sonia Draghici ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25325
Earth oil extraction - major environmental pollution source
Environmental Engineering and Management Journal › Vol. 7 › Nr. 6 AbstractThe work presents the negative environmental impact produced by an extraction of crude oil activity. To highlight and quantify the negative effects on the environment produced from such activity, the experimental part has been focused on evidence of samples of soil, water from groundwater aquifers and surface, and the air emissions. The values of quality indicators are presented in graphs and tables, highlighting an activity with all major impact on the environment.... Autori: Aurica Grec, Corneliu Maior ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25326
Implementing a sea pollution and safety management system in the navigation companies
Environmental Engineering and Management Journal › Vol. 7 › Nr. 6 AbstractThe paper presents the main causes of the sea accidents and disasters, which call for the implementation of a sea pollution and safety management system (SMS) in the navigation companies, for certification purposes, in compliance with the International Management Code for the safe vessel operation and pollution prevention (ISM). For this purpose the objectives of the ISM codes are presented and which are to be found in the implemented Management System.From the main causes of the safety ... Autori: Carmen Gasparotti, Lucian Georgescu, Mirela Voiculescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25330
Studies on equipment corrosion in catalytic reformation of C1 - C5 fraction
Environmental Engineering and Management Journal › Vol. 7 › Nr. 6 AbstractObservations and data regarding the intense corrosion and deposit phenomena of the carbon steel tube bundle of the heat exchanger are presented. The bundle ensures the cooling of the light fraction C1 - C5 from the top of the distillation column which carries out the removal of pentane and smaller derivates into the RC equipment. Chemical and mineralogical analyses confirm the aggressive action of the fluids flowing through the exchanger. Tests have been done in order to replace the carb... Autori: Ana-Daniela Georgescu, Lucian Georgescu, Maria Apostolescu, Nicolae Apostolescu, Ovidiu Georgescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25333
Effect of vanadium replacement by zirconium on the electrochemical behavior of Ti6Al4V alloy in Ringer´s solution
Environmental Engineering and Management Journal › Vol. 7 › Nr. 6 AbstractThe electrochemical behaviour of Ti6Al4V and Ti6Al4Zr alloys has been evaluated in Ringer's solution at 250C. The effect of the substitution of vanadium in Ti6Al4V alloy has been specifically addressed. The evaluation of the corrosion resistance was carried out through the analysis of the open circuit potential variation with time, potentiodynamic polarization curves, and electrochemical impedance spectroscopy (EIS) tests. Very low current densities were obtained (order of nA/cm2) from t... Autori: Adrian Cailean, Daniel Mareci, Daniel Sutiman, Igor Creţescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25334
Investigations on the possibility of natural hemp fibers use for Zn(II) ions removal from wastewaters
Environmental Engineering and Management Journal › Vol. 7 › Nr. 6 AbstractNatural hemp fibers have been evaluated for Zn (II) ions sorption from diluted aqueous solutions. In order to establish the optimum conditions, the effect of initial pH of solution, hemp dose, Zn (II) concentration, temperature and contact time of phases on the Zn (II) sorption by natural hemp has been studied. To model the Zn (II) sorption at three different temperatures the Langmuir and Freundlich isotherms have been used. The Langmuir maximum sorption capacities were determined as bei... Autori: Carmen Paduraru, Lavinia Tofan ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25336
An integrated assessment of the suitability of domestic solar still as a viable safe water technology for India
Environmental Engineering and Management Journal › Vol. 7 › Nr. 6 AbstractImproving access to safe drinking water can result in multi-dimensional impacts on people’s livelihood. This has been aptly reflected in the Millennium Development Goals (MDG) as one of the major objectives. Despite the availability of diverse and complex set of technologies for water purification, pragmatic and cost-effective use of the same is impeding the use of available sources of water. Hence, in country like India simple low-energy technologies such as solar still are likely to ... Autori: , Nanda Kumar, Santosh M. Avvannavar ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25337
Determination of organic compounds from different types of coffee by Hplc and Gc-Ecd analysis
Environmental Engineering and Management Journal › Vol. 7 › Nr. 6 A study was conducted to investigate the organic compounds residues in different types of coffee from market inThe detection limits ranged from 0.02 ng/kg to 0.04 ng/kg and quantification limits were 0.2 ng/kg. Calibration and recovery studies gave satisfactory results. Concentrations of OCPs in coffee samples varied from 0.001 mg/Kg to 0.007 mg/Kg. The methods provide a rapid and accurate determination of these organic compounds in coffee samples.... Autori: Gabriela Stanciu, Mariana Popescu, , Simona Dobrinas ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25338
Environmental Engineering and Management Journal, Vol. 9 Nr. 2
Environmental Engineering and Management Journal › Vol. 9 › Nr. 2 - Artificial intelligence applications in the atmospheric environment: status and future trends- Kernel methods and neural networks for water resources management- Environmental decision support systems based on models and model-based reasoning- Towards an intelligent tutoring system for environmental decision makers- SBC-MEDIU: A multi-expert system for environmental diagnosis- Fast and accurate residential fire detection using wireless sensor networks- Validation of a knowledge-based risk mode... Autori: http://www.ecozone.ro/reviste.php?RID=25377
Composite membranes with cross-linked matrimid selective layer for gas separation
Environmental Engineering and Management Journal › Vol. 7 › Nr. 6 AbstractIn the present work, composite membranes were developed for separation of hydrogen from its mixtures with other gases. The composite membranes were characterized by single gas permeation and scanning electron microscopy. Gas transport properties have been determined for four gases (H2, CH4, N2, CO2). The influence of cross-linking on transport was measured. H2/CH4 selectivity values up to 115 were obtained. The resulting membranes have a selectivity of H2/CH4 close to intrinsic selectivi... Autori: Carmen Nistor, Marcel Popa, Sergey Shishatskiy, Suzana Pereira Nunes ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25339
Environmental Engineering and Management Journal, Vol. 7 Nr. 6
Environmental Engineering and Management Journal › Vol. 7 › Nr. 6 Include urmatoarele articole:â€? Composite membranes with cross-linked matrimid selective layer for gas separationâ€? Determination of organic compounds from different types of coffee by Hplc and Gc-Ecd analysisâ€? An integrated assessment of the suitability of domestic solar still as a viable safe water technology for Indiaâ€? Investigations on the possibility of natural hemp fibers use for Zn(II) ions removal from wastewatersâ€? Removal of acid red 398 dye from aqueous solutions by coagulation... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25340
Adsorption of N-hexane vapors onto non-functionalized hypercrosslinked polymers (hypersol-macronet TM) and activated carbon: Equilibrium studies
Environmental Engineering and Management Journal › Vol. 8 › Nr. 1 AbstractTwo non-functionalized hypercrosslinked polymeric resins type Macronet (MN 202 and MN 250) were employed to remove nhexane vapors from gas phase. A comparison of the equilibrium behavior of these hypercrosslinked resins and a bituminous granular activated carbon was made. The initial n-hexane concentration in the air stream ranged from 2100 to 4500 ppm and the adsorption temperatures were 30oC, 40oC and 50oC. The results showed that the MN 250 presents the higher adsorption capacities of... Autori: Adela Marilena Buburuzan Haleta, Cezar Catrinescu, Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25341
A computing model for optimal sizes of protected areas considering animal bioindicators
Environmental Engineering and Management Journal › Vol. 8 › Nr. 1 AbstractThe authors propose a calculation example of the optimal sizes regarding the protected areas, taking into account the biological, ecological and behavioral needs of the animal species which are situated in the top of the trophic pyramid. Carnivores and great herbivores are considered the best bioindicators for the Romanian ecosystems.... Autori: Corneliu Maior, Petru Aurel Darau, Viorel Soran ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25342
An overview of decision support systems for integrated water resources management
Environmental Engineering and Management Journal › Vol. 8 › Nr. 1 AbstractIntegrated water resources management requires planning and management activities, as well as adequate information and communication within a structure that groups different stakeholders (industry, agriculture and other types of water users, civil society representatives, university and research institutions, water authorities and waterworks companies), being thus characterized by a high level of complexity, and requiring the involvement of numerous decision-makers operating at different... Autori: , , Luminita Lupu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25344
Numerical modelling of longshore currents in marine environment
Environmental Engineering and Management Journal › Vol. 8 › Nr. 1 AbstractThe present work carries out a parallel analysis between the performances and, on the other hand, of the restrictions of two different model systems designed to assess the nearshore circulation. These are SHORECIRC, which is a widely known general prediction system for nearshore circulation and ISSM (the Interface for SWAN and SURF Models). SHORECIRC is a quasi-3D model that combines a numerical solution for the depth-integrated 2D horizontal momentum balance equations with an analytical... Autori: Eugen Rusu, Silviu Macuţă ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25345
Titanium dioxide extraction from paint sludge of automotive industry Case study: Paint sludge of Saipa paint shop
Environmental Engineering and Management Journal › Vol. 8 › Nr. 1 AbstractPaint sludge of automotive industry contains heavy metals and other toxic substances. Due to this matter, it has a high pollution potential. Incorrect disposal of paint sludge led to kinds of environmental pollution. Recycling and reusing of wastes can be one of the best solutions for decreasing of pollutant entrance to environment. The purpose of this study was to present a new method of extracting the main components of paint sludge, for determining concentration of elements in paint s... Autori: Azadeh Akhavan Bloorchian, Seyed Mostafa Khezri ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25346
Survey on the dynamic of urban air pollution in the municipality of Craiova, Dolj county
Environmental Engineering and Management Journal › Vol. 8 › Nr. 1 AbstractUrban air pollution is responsible for the highest burden of environmentally related diseases in Europe. Air pollutants with strongly indicated respiratory health effects are particulate matter, nitrogen oxides and sulfur dioxide. The retrospective ecological survey has taken into account the urban air pollution with sulfur dioxide (SO2), nitrogen dioxide (NO2), ammonia (NH3) and particulate matter (PM10). The analyzed data show that after applying the European regulations regarding the ... Autori: Catalin Adrian Petrisor, Dorin Petrişor, Lucreţiu Radu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25348
The Algae Blooms phenomenon - A mathematical model
Environmental Engineering and Management Journal › Vol. 8 › Nr. 1 Pollution with sources from towns and industrial centres affect considerable the ecosystem waters. An accumulation of nutrients favourable to the growth of certain tiny marine organisms called phytoplankton stimulates their rapid reproduction in the water.These plankton blooms appear as patches on the surface of the water. The consequence of this process is the diminishing of the amount of oxygen from water (in the process of decompose the algae), the decease of aquatic animal and the multiply o... Autori: Laura Stefanescu, Laura Ungureanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25351
Radiolytic output of hydrogen as environmentally friendly energy vector
Environmental Engineering and Management Journal › Vol. 8 › Nr. 1 AbstractThis study deals with the radiolytical decomposition of water molecules, in the presence of some catalysts, getting out hydrogen as unpolluting and cheaper energy vector. Instead of the spent nuclear fuel elements taken out from nuclear power plants, as irradiation source it was used the 60Co radionuclide having a specific activity of 1.1.105 Ci. It was observed that the radiolytic yield of resulted molecular hydrogen from water radiolysis in the presence of used catalysts decreased as:N... Autori: Ada Macovei, Alexandru Cecal, Dumitru Ganju, , Oana R. Haută ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25354
GHG emissions evaluation from fossil fuel with CCS
Environmental Engineering and Management Journal › Vol. 8 › Nr. 1 AbstractA present challenge for research is to determine how to use the combination of oil, gas and coal most efficiently with the minimum environmental damage. In this paper the authors have compared technologies to produce the electricity using natural gas and coal. The objective of this paper consists in evaluation of the life cycle assessment of the natural gas and coal in order to compare their greenhouse gases (GHG) emissions. In this way, three systems with and without CCS were examined: ... Autori: Adrian-Alexandru Badea, Cristian Dincă, Gheorghe Lăzăroiu, Tiberiu Apostol ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25355
An experimental three-stage hybrid constructed wetland system for removal of organics and nutrients from domestic wastewater
Environmental Engineering and Management Journal › Vol. 8 › Nr. 1 AbstractAn experimental three-stage subsurface flow constructed wetland system was investigated for the removal of nutrient and organic matter from primary-treated domestic wastewater. Built in the Turkey Scientific and Technical Research Council-Marmara Research Center, Gebze, Turkey (Istanbul), the system consisted of a vertical flow-gravel filtration in the first stage, a horizontalsubsurface flow bed vegetated with Iris in the second stage, and a vertical-subsurface flow bed vegetated Phragm... Autori: Bilal Tuncsiper ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25358
Glucose oxidase - vanadium substituted anionic clay as bionanocomposite formulations for biosensors applications
Environmental Engineering and Management Journal › Vol. 8 › Nr. 1 AbstractChemical sensors utilizing immobilized enzymes and proteins are important for monitoring chemical processes and biological systems. Glucose oxidase (GOx) from Aspergillum Niger is a flavoenzyme that has been used to determine glucose. Among the conventional methods of enzyme deposition the main strategy consists in its entrapment in an inert matrix adsorbed on the electrode surface. We report here the synthesis and physical – chemical characterization of a new bionanocomposites obtaine... Autori: , Gabriela Ciobanu, Ion Balasanian, Simona Ratoi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25359
Residues of polycyclic aromatic hydrocarbons in different stages of Capsicum annuum (pepper) and Solanum lycopersicum (tomato) growing
Environmental Engineering and Management Journal › Vol. 8 › Nr. 1 AbstractPolycyclic aromatic hydrocarbons (PAHs) are included in the European Community (EC) and in the Environmental Protection Agency (EPA) priority pollutant list due to their mutagenic and carcinogenic properties. PAHs emissions from automobile traffic and industry activities were shown to influence the PAHs levels and profiles in vegetables grown nearby. The levels of 15 PAHs were determinate in samples of pepper (Capsicum Annuum) and tomato (SolanumLlycopersicum) in different stages of plan... Autori: Alina Soceanu, Dan Tiberius Epure, Gabriela Stanciu, Simona Dobrinas, Valentina Coatu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25360
Hydrodynamic modelling of pollution with LNAPL generated by waste dump from metal working industry
Environmental Engineering and Management Journal › Vol. 8 › Nr. 1 AbstractIn the present article, some models conceptually and mathematically applicable to the LNAPL transitory transport process through ground water were discussed. Subsequently, by using a personal computer program of pre-processing basis data combined with MOVER 2.0, the levigation process of oily dross/scale stored in the waste dump, which produces steel rolled tubes, was numerically simulated, in adequate scenarios. The results of the simulations will be useful at the evaluation of the impa... Autori: Elena Doinita Carlig, Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25361
Electrochemical characteristics of Ti6Al7Nb alloy in Ringer’s solution
Environmental Engineering and Management Journal › Vol. 8 › Nr. 1 AbstractTitanium alloys show attractive properties for biomedical applications where the most important factors are biocompatibility, corrosion resistance, low modulus of elasticity, very good strength-to-weight ratio, reasonable formability and osseointegration. The aim of present study was to evaluate the electrochemical behaviour of Ti6Al7Nb alloy in Ringer’s solution of different pH. This evaluation was carried out through the analysis of the potentiodynamic polarization curves, and electr... Autori: Daniel Mareci, Julia Claudia Mirza Rosca, Marina Garcia Falcon ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25363
Analysis of distribution of oxygen transfer rate in stirred bioreactors for bacterial broths
Environmental Engineering and Management Journal › Vol. 8 › Nr. 1 AbstractThe study on the distribution of oxygen transfer rate in a stirred bioreactor for Propionibacterium shermanii broths underlined the major influence of the presence and concentration of biomass on the interphasic transfer of oxygen. Owing to the bubbles surface blockage by the bacterial cells, the accumulation of biomass from 30.5 to 120.5 g/l d.w. led to the decreasing of kla for about 1.3- 2.4 times. Compared with the simulated broths without biomass having similar apparent viscosity, t... Autori: Adina Segneanu, Anca-Irina Galaction, Dan Caşcaval ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25364
Trend in exhaust emissions from in-use gasoline vehicles
Environmental Engineering and Management Journal › Vol. 8 › Nr. 1 AbstractThe main goal of this study is to determine the trend in exhaust concentrations during the last 12 years. Accordingly, a nondisperse infrared gas analyzer was used to measure the concentrations of carbon monoxide (CO) and hydrocarbons (HC) emitted from vehicle exhaust. A total of 449 vehicles distributed across model years ranging between 1968 and 2005 were tested under idling conditions. The results indicated that there is a strong relationship between the age of the vehicle and the con... Autori: Kamel Al Zboon ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25365
CsHSO4/mesoporous silica composites - new electrolytes for solid acid fuel cells
Environmental Engineering and Management Journal › Vol. 8 › Nr. 1 AbstractHigh proton conductivity of CsHSO4 opened new opportunities for applications as electrolyte in solid acid fuel cells (SAFC). Relatively recent, it was proved that the accommodation of this solid electrolyte by silica supports improves its proton conductivity. During this work, solid acid CsHSO4 and its composites with mesoporous silica of SBA-15 and MCF-types as host materials were synthesized and studied for the first time. Studies were mainly focused on the influence of mesoporous supp... Autori: Adrian Ungureanu, Brindusa Dragoi, Emil Dumitriu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25366
Environmental Engineering and Management Journal, Vol. 8 Nr. 1
Environmental Engineering and Management Journal › Vol. 8 › Nr. 1 Include urmatoarele articole:â€? CsHSO4/mesoporous silica composites - new electrolytes for solid acid fuel cellsâ€? Trend in exhaust emissions from in-use gasoline vehiclesâ€? Analysis of distribution of oxygen transfer rate in stirred bioreactors for bacterial brothsâ€? Electrochemical characteristics of Ti6Al7Nb alloy in Ringer's solutionâ€? Pulsed high voltage discharge technology as a new method for killing Hepatitis C virus (HCV) cellsâ€? Hydrodynamic modelling of pollution with LNAPL gene... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25367
Environmental Engineering and Management Journal, Vol. 8 Nr. 2
Environmental Engineering and Management Journal › Vol. 8 › Nr. 2 Include urmatoarele articole:â€? Environmental Engineering and Management Journal, Vol. 8 Nr. 2â€? Bioengineering aspects of tissues culture bioreactors for medicine and environmental applicationsâ€? Removal of bis (1-chloro-2-propyl) ether from wastewater using sonodegradation and biodegradationâ€? A novel plasma reactor for toluene decomposition in contaminated air flowâ€? Study of the copper (II) removal from aqueous solutions by chelating resin Purolite S930 â€? Analysis of some metal levels... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25371
Environmental Engineering and Management Journal, Vol. 8 Nr. 3
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 â€? Bioremediation of contaminated air using a bioscrubberâ€? Quality risk evaluation of the groundwater resources on the moldavian areaâ€? Electrochemical characterization of some dental materials in accelerated environmental testingâ€? Preliminary study of simple and Fenton oxidation with hydrogen peroxide applied on final effluents from a zootechnical farmâ€? The environmental impact assessment caused by the dykes failureâ€? Revaluation of beer industry byproducts – medical implicationsâ€? ... Autori: http://www.ecozone.ro/reviste.php?RID=25372
Environmental Engineering and Management Journal, Vol. 8 Nr. 4
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 â€? Photocatalytic properties of titania - fly ash thin filmsâ€? Study of the viscosity of some biodiesel – diesel oil blendsâ€? Aspects refering to technical and leaching properties of the secondary aluminium slags - cement compositesâ€? Studies regarding phenol and 4-chlorophenol sorption by surfactant modified zeolitesâ€? Cu-Ni nanostructured electrocatalysts obtained by electrocodepositionâ€? Molecularly imprinted poly (vinyl alcohol) films for the selective absorption of glycyrrhizinic ac... Autori: http://www.ecozone.ro/reviste.php?RID=25373
Environmental Engineering and Management Journal, Vol. 8 Nr. 5
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 â€? Photocatalytic properties of titania - fly ash thin filmsâ€? Study of the viscosity of some biodiesel – diesel oil blendsâ€? Aspects refering to technical and leaching properties of the secondary aluminium slags - cement compositesâ€? Studies regarding phenol and 4-chlorophenol sorption by surfactant modified zeolitesâ€? Cu-Ni nanostructured electrocatalysts obtained by electrocodepositionâ€? Molecularly imprinted poly (vinyl alcohol) films for the selective absorption of glycyrrhizinic ac... Autori: http://www.ecozone.ro/reviste.php?RID=25374
Environmental Engineering and Management Journal, Vol. 8 Nr. 6
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 â€? Physiological changes in seedling germination and growth plant under chemical stress conditionsâ€? Studies on sorption and transport processes of cadmium in soilsâ€? Assessment of the anthropogenic impact on water systems by fluorescence spectroscopyâ€? Research on the effects of soil improvement by fertilization on the quality of winter wheatâ€? Halotherapy: From ethnoscience to scientific explanationsâ€? Study regarding the sorption of erythrosine from aqueous solution onto soilâ€? Hydroxy... Autori: ISSN: 1582 - 9596 http://www.ecozone.ro/reviste.php?RID=25375
Application of inductively coupled plasma - atomic emission spectroscopy (ICP-AES) based analysis for water quality control
Environmental Engineering and Management Journal › Vol. 8 › Nr. 2 AbstractThe quantification of heavy metals presence in the environment is a very important aspect regarding water quality control. The limits for those metals are very well established by Romanian laws and the essence of every validation report is to prove that the method, the apparatus and the operator can reach the established limits. In the present paper such a validation report is presented, proving the appropriate use of Inductively Coupled Plasma - Atomic Emission Spectroscopy (ICP-AE... Autori: Irina Dumitriu, , Ioana Raluca Bunghez, Rodica - Mariana Ion ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25380
Survey of electromagnetic environment due to mobile communications
Environmental Engineering and Management Journal › Vol. 8 › Nr. 2 AbstractThis paper presents an analysis of the levels of electromagnetic fields caused by cellular base stations or mobile phones, measured in some residential areas. A statistical processing of the data has also been done in order to estimate both the short-term and the long-term variability of the fields caused by cellular base stations in some apartments and on the terraces of the apartment buildings at tens or hundreds of meters distance from the antenna systems. In some places, comparative ... Autori: Alexandru Salceanu, Ionut Nica, Valeriu David ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25381
Minimization of cutting fluids ecological impact by near dry machining
Environmental Engineering and Management Journal › Vol. 8 › Nr. 2 AbstractThis paper analyses a new technology for minimizing the use of metalworking fluids (MWF) during the machining process. Despite the fact that near dry machining (NDM) produces almost similar cutting performance to conventional flood supply machining while using much less MWF, for being fully utilized in industry is necessary to research ecological impact of these machining techniques. To take full advantage of minimal quantity lubrication (MQL) technique and expand its applicability, an u... Autori: Domnita Florina Fratila ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25382
Entrepreneurial capacity for sustainable development of economic environment
Environmental Engineering and Management Journal › Vol. 8 › Nr. 2 Abstract Based on qualitative research conducted on teams of Romanian students in Engineering and Management that participated in transnational teams within the framework of an international simulation program on global technologies for sustainable development, specific features in relation with the development of entrepreneurship capacity (values, skills competencies) were identified and examined. It was found that specific cultural biases influenced the way the Romanian students approached var... Autori: Aida Carmen Hutu, Silvia Avasilcăi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25384
Optimization of a gas chromatographic method for acrylamide analysis applications for risk management
Environmental Engineering and Management Journal › Vol. 8 › Nr. 2 AbstractThe paper proposes a simple and less expensive gas chromatographic method for analyzing acrylamide in food and reveals comparative results regarding the acrylamide content in commercial and home toasted bread. Validation of the method has been achieved by establishing parameters linearity, limit of detection (LOD = 0.1 mg/L), limit of quantization (LOQ = 0.5 mg/L), precision, stability. Run-to-run precision was determined by carrying out five replicate determinations for three acrylamide... Autori: Anca Irina Burlacu, Rodica Cuciureanu, Patricia Fitterman, Michel Larroque ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25385
Improving the recycleability of printing paper by in-situ filler loading
Environmental Engineering and Management Journal › Vol. 8 › Nr. 2 AbstractThe purpose of this study is to analyze the recycling potential of printing papers, which are obtained by two different filler loading processes: conventional loading by direct addition of calcium carbonate to cellulose fiber suspension and in-situ loading by precipitating calcium carbonate within cell wall and lumen of pulp fibres. In order to evidence the influences of the both filler content and loading method, a reference sample for recycling was obtained without filler, but using th... Autori: Maria Ciobanu, Elena Bobu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25386
Materials processing using solar energy
Environmental Engineering and Management Journal › Vol. 8 › Nr. 2 AbstractThe main aspects refer to metals and refractory materials behaviour, at high temperature, to materials purifying and to achieve some chemical syntheses.The main technological parameter of the heating is temperature, heating obtained by focusing Sun's rays. The heating can be used inside the furnace to produce metallic material into a crucible, without any complementary power source.For the future, a bigger interest presents some other metals melting, more expensive than steel, such as ti... Autori: Petrica Vizureanu, Cornel Samoila, Daniel Cotfas ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25387
Treatment and management of distillery fermentedfruit spent marc. I. Processing into compacted solid fuel
Environmental Engineering and Management Journal › Vol. 8 › Nr. 2 AbstractThe study presents the processing possibilities for marc resulted as still residue from the distillation of fermented fruits in view to obtain a compacted solid fuel. Initial marc composition (carbon, hydrogen, nitrogen, sulphur and oxygen contents) determined by elemental analysis is evidenced, as well as technical characterisation (ash and moisture contents) and ash's qualitative composition, chemical characterisation of the liquid phase (pH, total phosphorus, acidity and conductivity)... Autori: Daniela Simina Stefan, Anca-Ileana Penu, Mircea Stefan ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25391
Adsorption of n-hexane vapors onto non-functionalised hypercrosslinked polymers (HYPERSOL-MACRONETTM) andactivated carbon: Thermodynamic and kinetic studies
Environmental Engineering and Management Journal › Vol. 8 › Nr. 2 AbstractThe adsorption characteristics of n-hexane vapors from gaseous stream onto two types of hypercrosslinked polymeric resins (MN 202 and MN 250), and a bituminous granular activated carbon (AC 20) was investigated. The n-hexane influent concentration ranged from 2100 to 4500 ppm and the adsorption processes were performed at 30, 40 and 50 ?C. Thermodynamic potentials ?H, ?S, and ?G and isosteric heats of adsorption were calculated from experiment performed at different temperatures (30-50?C... Autori: Adela Marilena Buburuzan, Cezar Catrinescu, Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25393
Study of adsorption equilibrium of some wet aircomposite material systems
Environmental Engineering and Management Journal › Vol. 8 › Nr. 2 AbstractEquilibrium data of water vapor adsorption from wet air on several materials were experimentally determined at temperature values of 313 and 333 K and air relative humidity values ranged between 30 and 90 %. Experimental data were correlated with Langmuir and Freundlich models. The obtained results emphasize the significant difference between the water retained on the adsorbent materials impregnated with various salt solutions, and on classic adsorbents.... Autori: Ioan Mămăligă, Constantin Baciu, Stelian Petrescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25394
Application of natural materials as sorbents for persistent organic pollutants
Environmental Engineering and Management Journal › Vol. 8 › Nr. 2 AbstractPersistent organic pollutants (POPs) are toxic chemicals that adversely affect human health and the environment around. This group of priority pollutants consists of pesticides, industrial chemicals and unintentional by-products of industrial processes. Natural materials, waste from industry and agriculture and bioadsorbents can be employed as inexpensive adsorbents to remove POPs from environmental components by sorption processes. The paper presents various natural sorbents and some ou... Autori: Laura Carmen Apostol, Maria Gavrilescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25395
Optimization of process variables for cadmium removal from synthetic wastewaters by sphagnum moss peat
Environmental Engineering and Management Journal › Vol. 8 › Nr. 2 Abstract
The efficiency of Cd (II) removal from aqueous solutions was investigated using Sphagnum moss peat as sorbent. A 23 orthogonal central composite design was successfully employed for experimental design and analysis of results. The combined effect of the initial solution pH, peat dosage and initial Cd (II) concentration was studied and optimized using Response Surface Methodology (RSM). The optimum values of these variables were found to be pH = 4.72, 14.7 g peat /L and 13.64 mg Cd /L, ... Autori: Catalin Balan, Corneliu Cojocaru, Petru Bulai, Doina Bilba, Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25399
Decontaminate effect of the functionalized materials with undoped and doped (Ag) TiO2 nanocrystals
Environmental Engineering and Management Journal › Vol. 8 › Nr. 2 Abstract
This paper presents the preliminary results of photocatalytic oxidation of humic acid from water using two types of catalysts, i.e., TiO2 and Ag-doped TiO2 modified zeolite (TMZ and Ag-TMZ). TMZ and Ag-TMZ, with zeolite granulation of 315-500 ?¬m was synthesized by sol-gel method, and the morphology and composition of the unmodified/modified zeolite were characterized by BET (Brunauer–Emmet–Teller) method, X-ray Diffraction (XRD), scanning electron microscopy (SEM) and energy dis... Autori: Cornelia Ratiu, Carmen Lazau, Paula Sfirloaga, Corina Orha, Daniela Sonea, Stefan Novaconi, Florica Manea, Georgeta Burtica, Ioan Grozescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25397
Study of the copper (II) removal from aqueous solutions by chelating resin Purolite S930
Environmental Engineering and Management Journal › Vol. 8 › Nr. 2 Abstract
This work examines the influence of experimental conditions on the copper (II) ions removal from aqueous solutions using chelating ion exchange resin Purolite S930. The influence of solution pH, initial metal concentration, contact time, temperature, ionic form of the resin and resin dose was studied in batch experiments. The percent of Cu (II) removal has a maximum at pH 5.0 (buffered solutions), and increases with the increasing of resin dose, of the contact time and of temperature... Autori: Petru Bulai, Catalin Balan, Doina Bilba, Matei Macoveanu ISSN: 1582 - 9596 http://www.ecozone.ro/reviste.php?RID=25401
Removal of bis (1-chloro-2-propyl) ether from wastewater using sonodegradation and biodegradation
Environmental Engineering and Management Journal › Vol. 8 › Nr. 2 Abstract
The potential of using ultrasonic irradiation and microbiological treatment for the removal bis(1-chloro-2-propyl) ether from aqueous solutions has been investigated. Experiments were performed in a continuous bioreactor, 3500 mL volume, and in an ultrasonic bath respectively, using frequencies of 38+1kHz and applying a power of 30 W. Under these conditions, the sonochemical conversion of ether was found to be superior to the biological one. The ultrasound method was improved by air ... Autori: Mihaela Iordache, Vasile Lucian Pavel, Lim Myunghee, Ioan Iordache ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25403
Bioengineering aspects of tissues culture bioreactors for medicine and environmental applications
Environmental Engineering and Management Journal › Vol. 8 › Nr. 2 Abstract
Development of industrial cell culture processes needs a good engineering practice and system expertise in achieving a successful integrated process using disposable components. The bioreactors for 3D tissues systems could be an advantageous alternative in terms of low contamination risk, easiness of handling and scaling-up. A careful and strategic design of these equipments provides a better process control and a safe and reproducible production of tissue construct. They can offer t... Autori: Anca-Irina Galaction, Dan Caşcaval, Dan Zaharia, Radu Ciorap ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25404
Plant protection products and their sustainable and environmentally friendly use
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
Protection of plants from diseases, pests and weeds plays a decisive role in agricultural development, as an essential part in planning and policy of numerous countries. Since the plant protection products are mainly chemicals and may be not only poisonous for humans and fauna, but they may also pollute water bodies, ground water and soil with hazardous pollutants, their use have to be environmentally friendly and sustainable. The paper discuss some aspects of benefits and risks con... Autori: Manuela Olga Pogăcean, Maria Gavrilescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25405
Methodology for real estate appraisal of green value
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
Green buildings are considered a quick and effective approach to protect the environment by slowing down the consumption rate of primary energy resources and by reducing greenhouse gas emissions. In Europe, appraisals of properties should take into consideration this new feature of buildings by implementing data from Energy Performance Certificates (EPC) into real estate assessment. With this respect, a methodology is proposed and analyzed to be considered in the sales comparison rea... Autori: Daniela Popescu, Emilia Cerna Mladin, Rodica Boazu, Sven Bienert ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25406
Study on the multi-annnual variability of particulate matter PM10 in Suceava City
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
Fine particulate matter and ground-level ozone are now generally recognized as the most significant in terms of health impacts. This study shows that concentrations of particulate matter up to 10 microns in diameter (PM10) in Suceava city exceeded EU limits set to protect human health during 2004-2007. In order to design effective PM10 air quality management programmes, it is essential to identify the sources affecting PM10 background levels. For this, PM10 data series were analyzed ... Autori: Lacramioara Gina Ursul, , Doina Carmen Manciuc ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25409
Environmental monitoring of co emissions: Statistical character of acquired data
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
A set of experimental data resulted from environmental monitoring and its informational content has to be revealed and checked for its statistical character. As a result in this paper the aim was to verify if the environmental monitoring data obtained for a specific air pollutant monitored during three years presents statistical properties. Based on the results obtained by applying statistical requirements such as fixed location, fixed variation, randomness and fixed distribution, a ... Autori: Irina Meghea, Mihaela Mihai, Ioana Lacatusu, Tiberiu Apostol ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25410
Preparation and characterization of sodium alginatechitosan microparticles for controlled release of ibuprofen in a sustainable way
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
The preparation of microspheres containing chitosan, sodium alginate and ibuprofen and the pH dependent drug release were investigated. The microspheres were prepared by two experimental routes: the first one starting with a chitosan/ibuprofen core subsequently coated by an alginate shell (S1) and the second one based on an alginate/ibuprofen core, later coated by a chitosan layer (S2). The physical-chemical characterization was done by using Dynamic Light Scattering (DLS), Atomic Fo... Autori: Luminiţa Elena Balău, Nicolae Aelenei, Marcel Ionel Popa ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25412
Iron containing anionic clays supported with iron and cerium oxides as catalyst precursors for NOx reduction
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
A facile and straightforward synthesis route, based on the anionic clay structural �memory effect??, has been used to obtain Fe2O3 or CeO2 supported on iron substituted hydrotalcite-like clay (FeLDH). The surface properties of the metal oxide / anionic clay ensembles were studies by X-ray photoelectron spectroscopy (XPS). After calcination at 550°C the derived mixed oxides were tested as new catalysts in the process of the selective catalytic reduction (SCR) of NOx using NH3... Autori: Gabriela Carja, Sofronia Dranca, Elena Husanu, Irina Volf ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25413
Phytoremediation technology for remediation of radiostrontium (90SR) and radiocaesium (137CS) byCatharanthus roseus (L.) G. don in aquatic environment
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
Phytoremediation is an eco-friendly, cost effective, in situ treatment technology. In the present research study, phytoremediation technology has been employed for remediation of radionuclides namely 137Cs and 90Sr by using living green plant Catharanthus roseus. C. roseus plants were exposed to different activity levels of 137Cs and 90Sr in aquatic condition to assess the efficiency of plants for remediation of radionuclides. C. roseus plants have been found to remediate 70%, 52% an... Autori: Singh Anamika, Susan Eapen, Madhusudan H. Fulekar ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25417
Utilization of coal fly ash from power plants II. Geopolymer obtaining
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
Study of geopolymer is a developing field of research for capitalizing solid waste and by-products in the view of new materials achievement having characteristics necessary for using as cement substitute. Also, it provides a solution to many problems regarding environment, such as reduction of gaseous emissions and particles matter resulted from cement industry and raw materials economy.
In this paper, the experimental conditions for obtaining new materials on the basis of fly ash f... Autori: Maria Harja, , Maria Gavrilescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25419
Reactive dyes removal from wastewater by combined advanced treatment
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
Textile industry is one of the most pollutant and water consuming industries. Large quantities of water are required in materials preparation and dyeing, so consumption and waste generation have become serious concerns for textile manufacturers and finishers. Textile effluents are characterized by high values of quality indicators such as BOD and COD, suspended solids and heavy metals. A serious environmental problem and also an aesthetic problem is the color of the effluent. Reactiv... Autori: Daniela Cailean, George Barjoveanu, Corina - Petronela Musteret, Liliana Rozemarie Manea, Nicolae Sulitanu, ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25420
Research on the combustion of crude vegetable oils for energetic purposes
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
The paper highlights the combustion possibilities of crude vegetable oils as fuels for stationary application. This is an opportunity of a new utilization in Romania of tee vegetable oils, for electricity production and heating systems, instead of the current situation of using in transportation as biodiesel fuel. The research focuses on crude vegetable oils obtained from some indigenous cultures: rape, soy, sunflower. An overview of the agricultural potential of oleaginous plants is... Autori: Ion Oprea, Ionel Pisa, , Tudor Prisecaru, Gheorghe Lazaroiu, Gabriel Negreanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25424
Experimental technique for saving energy in oval furnaces
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
Changing the working space by introducing some radiant panels has the purpose of intensifying the heat transfer by convection and radiation. By centralizing the experimental results, has been obtained an energetic saving of 28.67 – 32.74 % by using radiant panels; the heating speed of the charge raises with almost 50 % and the heating time of the charge decreases. In conclusion, changing the working space by introducing some radiant panels inside the furnace leads to important ener... Autori: Alina Adriana Minea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25426
Impact evaluation within strategic environmental assessment: The case study of the waste management. Regional plan for Kolubara region in Serbia
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
Strategic Environmental Assessment (SEA) represents one of the most important instruments for implementation of the sustainable development strategy in planning. The paper presents methodological framework and method used for SEA impact evaluation of the Waste Management Regional plan for Kolubara region in Serbia. The methodological approach and method are based on planer’s approach that has results in practice. The method is found after the multicriterion evaluation of the plan s... Autori: Bosko Josimovic, Tijana Crnčević ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25427
A theoretical analysis of the economy - ecology - environment system
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
This paper aims to analyze theoretically events in the economy - ecology - environment (natural resources) mega - system. This analysis includes methodologies making use of the first and second thermodynamic principles (for approaching the waste role in technological processes contour toward environment and the entropy variation importance in the main environmental segments), the application of systems theory and theories relating to emergy. The obtained results allow us to propose, ba... Autori: Avram Nicolae, Cristian Predescu, Maria Nicolae, Mirela Gabriela Sohaciu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25428
Photocatalytic oxidation process of sulfamethazine. Modeling based on neural networks
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
The photocatalytic degradation of sulfamethazine, a sulfonamide drug, has been investigated experimentally, in aqueous heterogeneous solutions containing n-type oxide semiconductors as photocatalysts, and by simulation, using neural network modeling. Through direct neural network modeling, the evolution of the photocatalytic oxidation process is evaluated as function of illumination time and type of catalyst. Inverse neural network modeling is a particular optimization that gives inf... Autori: Ciprian George Piuleac, Ioannis Poulios, Silvia Curteanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25430
Sustainable use of vegetal fibers in composite materials. Sources of vegetal fibers
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
Transition to a more sustainable economy and the consequences of the Kyoto protocol on global climate change, includes a shift of feedstock for energy and chemical industries from fossil fuels and petrochemicals to renewable resources. The use of vegetal fibers as major source of renewable resources represents a valuable alternative both from economical and environmental points of view. Traditionally, vegetal fibers are widely used in textile industry, paper manufacture, and packagin... Autori: Dan Gavrilescu, Bogdan Marian Tofanica, Adrian Catalin Puitel, Puiu Petrea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25431
Revaluation of beer industry byproducts- medical implications
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
One of most important concern for the food specialists is to solve the sociologically impact problems in parallel with the decrease of the pollution degree through the advanced capitalization of byproducts from the food industry.
The paper debates the capitalization of beer industry byproducts known as malt radicles, and their use in the bakery industry, for the obtaining of dietetical bread.
Along the malt radicles, KCl and Prima Pan improver were added to the bread’s dough, and... Autori: Monica Tulbure, Domnica Ciobanu, Adrian Gabriel Feraru ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25432
The environmental impact assessment caused by the dykes failure
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
The paper presents a risk analysis and assessment of the defence linear systems failure (dykes) in case of accidental flood. Also, breach scenarios and hydrographs computation for the corresponding accidental high waters are provided. The impact assessment is highlighted through a global matrix model for costs quantification.
It is also presented the flooding computation model for different versions of the linear defence systems and in a correspondent way the Inundation Accidental D... Autori: Codruta Badaluta-Minda, Gheorghe Creţu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25433
Preliminary study of simple and Fenton oxidation with hydrogen peroxide applied on final effluents from a zootechnical farm
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
The paper presents the preliminary experimental results performed at laboratory scale set-up for different combined mechanochemical treatments of final effluents from a zootechnical farm from the central Moldavian region of Romania. Because of the high content of pollutants into wastewaters, the soil can be polluted and also the ground waters. To avoid this soil pollution episode, some combined mechano-chemical processes were studied and applied into a specific technological order as... Autori: Carmen Zaharia, Mioara Surpăţeanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25434
Quality risk evaluation of the groundwater resources on the moldavian area
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
The analysis over the underground water monitoring system and the collected data from survey drilling show that the underground water has an unsatisfactory quality due to some physical and chemical characteristics. Along with these, factors like the surface water pollution, the hydrodynamic exchange between surface and underground waters and the reintroduction in the agricultural activities of nitrates and phosphorus based fertilizers lowers, as well, the quality that it has been tal... Autori: Ioan Crăciun, Catrinel-Raluca Giurma-Handley, Ion Giurma ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25436
Options for the valorization by recirculation of powder material for steel manufacture in EAF
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
This paper aims to propose a new solution for rational valorization of the secondary powder materials from steel makingin electric arc furnaces. The elaborated steel quality as well as the economical advantages represented by secondary powdermaterials recirculation were studied. A good correlation between the proportion of brickets loaded into the melt and the melting ofcarbon has been found. The proportion of the EAF dust brickets can grow even at 5-7%. Zinc presence could havenegat... Autori: Mirela Gabriela Sohaciu, Avram Nicolae, Cristian Predescu, Stefan Velicu, Gheorghe Gh. Calea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25438
Opportunities for valorization of steel slags
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
Using slag in steel making represents a challenge for road construction industry and decreasing environment interactions also.Steel making slag wit granulations of < 10 mm, which today have not a sure solution, represents the research object. The technological research solutions have aimed reducing CaO free content in these slugs, and reducing slug fraction with granulationof ... Autori: Florian Zaman, Mirela Gabriela Sohaciu, Ecaterina Matei, Cristian Predescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25439
Environmental friendly welding - An evolution from 3D (Dirty, Dusty, Dangerous) to 3C (Cool, Clever and Clean)
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
The paper approaches the environment issue in the context of welding fabrication processes. The introduction presents, synthetically, the place and dimension of welding in the manufacturing industry. Negative aspects regarding the image of weldingdue to the impact on the environment are identified. The driving factors and the main development trends of environmentalfriendly welding processes are analyzed. An action program to change the image of welding from the present "3 D - Dirty,... Autori: Dorin Dehelean ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25445
Energy conservation and CO2 emissions reduction for clinker portland cement manufacturing process
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
At present, dangerous industrial wastes are a main source of environmental pollution because they are stored and deposited improperly. Besides, dangerous industrial wastes could also be a source of secondary raw materials which are not well capitalized. This fact causes substantial losses of secondary raw materials and energy and it is explained by the lack of certain technologies of treatment, capitalization and final removal that are technically and economically sustainable. To ide... Autori: Neculai Mihailescu, Vasilica Daescu, Elena Holban, Mariana Nicoleta Badea, Jenica Paceagiu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25447
Uncertainty estimation-Case study for phenolic compounds determination in municipal wastewaters
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
The Romanian standard for the analytical method for phenols measurements in aquatic media was subject of internal validation procedure, adapted to the specific concentration domain of the laboratory. Method performance criteria were investigated on standard samples measurements: selectivity, linearity domain, precision, accuracy, limit of detection, limit of quantification androbustness. The validated method was further used on real samples of domestic and industrial wastewaters from... Autori: Carmen Dima, Cristina Jelescu, Camelia Draghici ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25448
Residues of polycyclic aromatic hydrocarbons from refinery spent catalysts
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
Spent hydroprocessing catalysts from petroleum refining industries have been classified as hazardous wastes due to their content in heavy metal and persistent organic pollutants (POPs). The aim of our paper determine the polycyclic aromatic hydrocarbons (PAHs) residues contents in spent catalysts samples from four different units of the Romanian refinery Rompetrol Rafinare,Constanta: Hydrogen (H), Gas Desulfurization Sulfur Recovery (GDSR), Hydrofining Turbojet Kerosene (HTK) and Pet... Autori: Camelia Draghici, , , Gabriela Stanciu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25449
Preliminary investigation aimed to ecological reclaiming by phytoremediation of a large flotation tailing dump in baia mare mining area
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
The flotation tailing pond Bozinta is located at 5 Km West from Baia Mare town. It is closed and is preparing for ecological reclaiming. Preliminary investigations have been made on the meteorological and climatologic indicators of the site. The temperature, air relative humidity, the wind speed, the rain values and the soil temperature have been measured during the vegetation period of 2008 year. The air temperature on the tailing pond is always 1?·2 0C higher than the values regist... Autori: Vasile Oros, Mirela Coman, Monica Marian, Leonard G. Mihaly, Anca Mihaly ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25452
Land degradation and desertification risk in Dobrogea region
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
It's well known the degradation of many Romanian (including Dobrogea) soils, both in hill and in plain environments, due to the increasing anthropic pressure on natural resources. Soil erosion and organic matter loss are recognized as the main processes responsible of such degradation and of the rising risk of desertification, to which land use changes and politics for agriculture not suitable for land specificities often contribute. The knowledge of land use impact on soil quality i... Autori: Marioara Nicolaescu, Naliana Lupascu, ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25453
Sludge recycling in ceramic matrix
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
In the new millennium to sustain a healthy life in harmony with nature, it will be extremely important to develop various materials and processes that minimize any harmful influence on the environment. The feasibility of sludge recycling in the brick manufacture was evaluated through laboratory testing. Several ceramic masses with clay, sand and various proportion of sludge have been synthesized and than characterized by their physical-mechanical properties. Sludge fineness also has ... Autori: Ana - Maria Szoke, Marcela Muntean ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25454
On the influence of ETS - 10 porosity and surface properties in retention of some nanoions and nanomolecules
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
Mesoporosity of about 7 nm in ETS-10 titanosilicate was generated by postsynthesis treatment with hydrogen peroxide under microwave irradiation, resulting in an increased external surface area of the materials (55 m2/g). The influence of titanosilicate porosity and its surface modification by phosphorus atoms (ET(P)S-10) on the retention of some nanoions (??-emitting radioactive U(VI) and Th(IV) ions) and biomolecules (the proteins cytochrome c, papain, and ??-globulin) was investiga... Autori: Robert Gradinaru, Sorin O. Valu, Stefan Postolache, Claudiu C. Pavel, Ion Sandu, Karin Popa ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25455
Iron oxides from electrofilter ash for water treatment (arsenic removal)
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
Arsenic (As)-contaminated drinking water is a major problem around the world. The removal efficiency depends strongly on the size of Fe3O4 sorbents.Fe3O4 prepared in laboratory is more efficient in the removal of As and is also more easily recovered from column of magnetic separator than the commercial materials. This would be beneficial in a water treatment system because the As-contaminated Fe3O4 could be flushed from the column permitting reuse of the separator system. The dispers... Autori: Ionel Balcu, Adina Segneanu, Marius Mirica, Mirela Iorga, Catalin Badea, Iuliana Firuta Fitigau ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25456
Non-ferrous heavy metal metallurgy wastewater treatment by the electro-floto-coagulation method
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
Electroflotocoagulation is used for the treatment of liquid wastes of various origins, containing suspended matter. The metal hydroxide formed by electrochemical metallic ions generation acts to aggregate the colloidal impurities, and the hydrogen bubbles evolved at the cathode allow flotation of foam containing the impurities. The aggregates formed (containing the impurities) and lifted above the solution can then be removed. Electroflotocoagulation (simultaneous electrocoagulation ... Autori: Marius Constantin Mirica, Mirela Ioana Iorga, Adina Segneanu, Ionel Balcu, Doru Buzatu, Cristian Vaszilcsin ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25457
Clouds influence on the solar radiation for a mountain location
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
In designing an efficient photovoltaic system, the meteorological data of the system location must be considered. Field data registered over years prove the importance of the implementation site characteristics in the design and optimal exploitation of a PV system, because wetting and atmospheric gaseous and particulate pollution can strongly distort the incident solar radiation. Thus, in addition to the efficiency of the solar module, the tracking efficiency, the clouds crossing fac... Autori: Dorin Valentin Diaconescu, , Ioana Sinziana Hermenean, Maria Monica Vatasescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25464
Olt river monitoring and quality assessment
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
This paper aims to present an assessment of Olt River water quality along Brasov county area, using data acquired during 2005- 2007. Olt River is an important river in Romania, and its basin is covering almost 10 counties, which main part of its middle section passes Brasov County. Olt River is providing water for industry, agriculture and human use, but is also collecting treated and not treated wastewaters from different sources.
Two important sampling sites were studied: Feldioar... Autori: Mihaela Sica, Dorina Dragan, Ramona Furnica, Camelia Draghici, ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25467
Using zeolite-modified electrode for the electrochemical determination of 4 -aminophenol from water
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
Two types of zeolite-modified electrodes, e.g., Ag-doped zeolite-expanded graphite-epoxy (AgZEG) and Cu-doped zeoliteexpanded graphite-epoxy (CuZEG) composite electrodes were tested for the application of the electrochemical determination of 4-aminophenol (4-AP). The electrochemical techniques used for the electrochemical determination of 4-AP were cyclic voltammetry (CV) and chronoamperometry (CA). Some aspects related to the mechanistic behaviour are discussed. The electrochemical ... Autori: Cornelia Ratiu, Carmen Lazau, Corina Orha, Ioan Grozescu, Aniela Pop, Daniela Sonea, Florica Manea, Georgeta Burtica, Joop Schoonman ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25468
Electrochemical degradation and determination of 2,4-dinitrophenol from water
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
Certain conventional and alternative carbon-based electrodes, i.e., glassy carbon electrode (GCE) and, commercial boron-doped diamond electrode (BDDE) were investigated and compared for the electrochemical determination and degradation of 2,4-dinitrophenol (2,4-DNP). The electrochemical behavior of electrodes in the presence of target pollutants was investigated using cyclic voltammetry (CV), chronoamperometry (CA), and multiple-pulsed amperometry (MPA). The duality of the electrode ... Autori: Adriana Bebeselea, Cristina Proca, Florica Manea, Ciprian Radovan, Georgeta Burtica, Joop Schoonman ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25469
Surface water pollution generated by mining activities. Case study: Aries river middle catchment basin, Romania
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
The Aries River, due to its geographic position and its significance in the Mures - Tisza Basin, has a major impact on environmental media, influencing their quality. In the Middle Catchment Basin the main industrial activity is mining, since the Roman times, when the first mines were opened. The mining operations in the region generated a severe pollution of all the environmental media.
The paper identifies the risk areas in the middle Aries River in terms of surface water pollutio... Autori: , Lucrina Stefanescu, Camelia Costan, Mirela Miclean, Cristina Modoi, Serban - Nicolae Vlad ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25470
Enhanced heavy metal adsorption on dye-modified fly ash
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
The use of fly ash (FA) in wastewater treatment received a lot of attention for the immobilization of heavy metal cations, mainly Cd2+, Pb2+, Ni2+, Zn2+, Cu2+. For an up-scalable wastewater treatment process, the substrate must have good adsorption efficiency and relatively constant behaviour. Modifying the fly ash surface can be a solution for reaching both goals. The use of FA for heavy metals removal, from wastewaters resulted in the dye finishing industry, faces a supplementary p... Autori: Maria Visa, Anca Duta ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25471
Immobilization mechanisms of chromium in cementbased solidified waste
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
Knowledge of the binding mechanisms of heavy metals to cement minerals is essential for the prediction of the long-term leachability of cement-based solidified waste containing heavy metals. In this paper, the sorption of chromate ions onto calciumsilicate- hydrate (C-S-H) in equilibrated aqueous suspensions was investigated as a function of liquid-to-solid ratio. The hypothesis of super-equivalent adsorption was assumed to be involved in chromate ions immobilization. This hypothesis... Autori: Constantin Bobirica, Ionel Constantinescu, Liliana Bobirica, ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25478
Wastewater treatment using optimized TiO2 photocatalytic properties
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
The paper presents a comparative approach concerning the properties of TiO2 thin layers obtained via spray pyrolysis deposition (SPD) using hydrophilic and hydrophobic polymers as additives. The influences of composition (X-ray diffraction), morphology (Atomic Force Mycroscopy, Contact angle) and optoelectric (electrical conductivity, absorption, band gap and photocurrent) properties on the photocatalytic activity of the layers were studied.
... Autori: Alexandru Enesca, Luminita Andronic, Anca Duta ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25479
Studies on titanium oxide catalyst doped with heavy metals (cadmium, copper and nickel)
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
In order to improve the photo-efficiency of the electronic process as well as the response into the visible part of the spectrum, TiO2 doping with heavy metal (cadmium, cooper and nickel) have been employed. The objectives of this work are: (a) to prepare doped Me(Cd, Cu, Ni) TiO2 by doctor blade (DB) and spray pyrolysis deposition (SPD) techniques, (b) to characterize the catalysts, (c) to study and compare the activity of the Cd-TiO2, Cu-TiO2 and Ni-TiO2 catalysts on methyl orange ... Autori: Luminita Andronic, Bianca Hristache, Alexandru Enesca, Anca Duta, Maria Visa ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25480
Nanoparticle-based materials for catalysis
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
Highly dispersed nanoparticles of transition and noble metals are utilized for hydrocarbon reactions and rearrangements important to the chemical industry. The need to obtain 1 to 3 nm particles with narrow size distributions has prompted the development of alternative processing methods. Due to widespread speculation concerning the enhanced properties of nanoparticles over their bulk and atomic material equivalents, nanoparticle synthesis has become an active field of research withi... Autori: , Irina Dumitriu, ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25482
New materials for water ozonization
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
Application of ozone is known to yield favorable results in purification of phosphate plant water from elemental phosphorus, in treatment of water of alkali aluminate solutions of aluminum plants, in decontamination of cyanide-containing waste water of enrichment plants, and so on. It has been proved that halogen-containing compounds, most of which have mutagenic properties, and some of which are carcinogenic to humans, are formed when water is treated with chlorine. Conclusions made... Autori: Irina Dumitriu, , ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25483
Quality assurance and languages in technical education
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
The process of quality assurance in the study of foreign languages in Technical Higher Education builds and increases employers’ confidence in the graduates. Thus, acquiring technical and communicative competences becomes a �must?? when entering a competitive job market. The qualitative results of our research have revealed some of the factors sustaining students’ excellence performance in the study of foreign languages. In conclusion, the elaboration and implementation o... Autori: Anca Greculescu, Gheorghe Solomon ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25486
East european particularities of the sustainable development
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
The paper presents a case study developed within the Danube Environmental Center from the Romanian University �Gheorghe Cristea?? of Bucharest. This center is targeted toward linking the material science with the sustainable development concepts, in order to move the awareness of the community alongside sustainable development, as a leading concept of the European development, which becomes essential for the new members as well, in the environmental education field, the geopo... Autori: Lidia Cristea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25489
Ecological polymer used for macro-defect-free cements (MDF) production
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
Macro-Defect-Free (MDF) cements are polymer-cement composites characterized by high value of flexural strength. Due to their thermal and electrical insulating properties, MDF cements could replace other insulators obtained by environmental non-friendlier technologies or being themselves toxic and non-biodegradable. MDF cements obtained by the use of an ecologic polymer (poly(vinyl alcohol)) shows high mechanical resistance in the initial state but also it’s dramatic decrease after ... Autori: , Georgeta Moise, Hulusi Ozkul, Ozgur Ekincioglu, Catalin Croitoru ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25493
Molecularly imprinted poly (vinyl alcohol) films for the selective absorption of glycyrrhizinic acid from aqueous solutions
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
Molecular imprinting is a versatile and ecological method for obtaining polymeric materials with a lot of applications in the field of pharmacy, medicine and biosensor assays. In this work, a new method of alternative molecular imprinting to design imprinted poly (vinyl alcohol) films has been proposed. Glycyrrhizinic acid has been used as template molecule. To demonstrate the obtaining of the molecular imprinted poly (vinyl alcohol) and its selectivity, studies of glycyrrhizinic and... Autori: , Catalin Croitoru, Georgeta Moise ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25495
Cu-Ni nanostructured electrocatalysts obtained by electrocodeposition
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
A simple method to synthesize copper, nickel and Cu-Ni nanotubes in alumina membrane by direct electrochemical deposition technique is presented.
This work is divided into three main parts:
- elaboration of the nanostructured metals supported on Cu and Ni electroconductive support;
- SEM - EDX characterization of nanodeposits;
- electrochemical characterization of the nanostructured electrodes;
Cu and Cu-Ni nanostructures were obtained by deposition through an alumina membrane (... Autori: Maria Jitaru, Ana-Maria Toma, Mihaela-Claudia Tertis, Ancuta Trifoi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25496
Studies regarding phenol and 4-chlorophenol sorption by surfactant modified zeolites
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
Phenols and chlorophenols are contaminants in soils, sediments, surface waters and groundwater, largely because of their worldwide utilization in the last 50 years as wood preservatives and general biocides in industry and agriculture. The toxicity of chlorophenols and their persistence in the environment require advanced treatment techniques for their removal.
This study presents the results of a comparative evaluation of the adsorption of phenol and 4-chlorophenol from aqueous sol... Autori: , Cezar Catrinescu, Roxana Elena Apreutesei ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25497
Photocatalytic properties of titania - fly ash thin films
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
The paper presents the results obtained when using thin films (doctor blade) of titanium oxide powder (Degussa P25) and fly ashactivated with NaOH, for advanced treatment of complex waters resulted in the textile industry. There are studied the heavy metal(cadmium, copper) adsorption and the dyes (methyl orange and methylene blue) photo-degradation using these novel substrates.The thin films crystallinity (XRD), morphology and roughness (AFM) were evaluated and no significant changes... Autori: Anca Duta, Luminita Andronic, Maria Visa ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25500
The carbohydrates synthesis in Calendula Officinalis l. Leaves influenced by some mutagene substances
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
It is known that carbonhydrates are precursors of all bioactive substances we tried in thes paper work to do some investigation on these substances in the environmental area of Iasi. To observe the influence of some chemical mutagens substances on carbohydrates biosynthesis we conducted investigations on plant material (leaves) taken from the Calendula officinalis L species. We used this assay to examine the effects of the herbicide 2,4- dichlorophenoxyacetic acid (2,4-D), etidium br... Autori: Constantin Leonte, Roxana Vatavu, Teodor Robu, Irina Volf ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25502
Passive biomonitoring of atmospheric pollution with heavy metals using native epigeic moss
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
It were investigated some atmospheric sediments of copper and chromium in mining areas of Dorna Basin by passive monitoring with six species of native epigeic moss (Mnium hornum, Mnium cuspidatum, Mnium punctatum, Polytrichum strictum, Thamnium alopecurum si Cephalozia bicuspidate) in two stages: April - September 2005 and October 2005 - March 2006. Thesedeterminations were achieved in 4 locations: Dealul Boambei, Saru Dornei, Sarisorul Mic, Neagra Sarului. In the same time was deter... Autori: Catalin Dumitrel Balan, Ionela Mezdrea Cojocareanu Pata, Matei Macoveanu, Sandu-Marius Pata ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25503
Study of copper and cadmium accumulation by bean
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
Bioremediation of heavy metal contaminated soil is one of the major concerns of our days. Phytoextraction has been lately utilized as an alternative of in situ remediation technology for polluted soils but is generally perceived to be too slow. Even so, phytoextraction is an efficient long lasting, accessible and environmentally friendly technique. The aim of this paper was to evaluate the phytoextraction potential of bean (Phaseolus vulgaris) in stress conditions induced by heavy me... Autori: Alina Stingu, Irina Volf, Valentin I. Popa ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25508
Reducing of pollutants emissions and heavy liquid fuels consumption in boilers by using of additives
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
The paper presents the experimental results, obtained using a pilot installation and hot-water boilers for reducing the pollutants emissions in combustion of heavy liquid fuels by using of additives for catalyzing of burning processes.
The experiments were made using additives based on iron and cerium carboxylates. Experimental results, which are presented both in variant of heavy liquid fuels burning with additives and without additives, highlight the reducing of pollutants emissio... Autori: Aurel Gaba, Stefania Iordache, Mircea Vladescu, Dan Ungureanu, Petrica Vizureanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25509
The product's anticipated success ratio on the turbulent markets: A genuine tool for the agile enterprises
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
To become "flexible" is the equivalent of becoming successfully for almost any firm - the activities based on old and traditional product "recipes" are, obviously, excluded. But, in the framework of a global economy crisis, the statistics seems to prove that flexibility is no longer enough in order to avoid troubles. At the same time, another statistics prove that almost 80% of the products are failing at their first release on market. The paper presents a genuine marketing aggregate... Autori: Gabriel-Petru Luca, Ion Verzea, Irina Cozminca ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25511
The analysis of alternative investments for sustainable agriculture
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
The rationality of allotting the resources for investments in sustainable agriculture needs the selection of alternative projects depending on numerous factors. The decision analysis process allows the identification of one variant with the highest utility that corresponds to the exigencies of economic, social and environmental impact efficiency. The integrated approach of the objectives specific for sustainable development actually leads to the selection of the investment portfolio ... Autori: Camelia Burja ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25512
The advertising efficiency ratio: A marketing aggregate indicator modeling for a noisy and turbulent market
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
This paperwork is trying to achieve some of theoretical and practical objectives concerning the "agility" concept: to make the differences operational, and to ensure the present surviving and the future development of economical activities in a, more and more, turbulent business environment. Also, the paperwork comes to display a genuine aggregate indicator "Advertising Efficiency Ratio", special developed to help the market players to face - throughout their advertising process - th... Autori: Gabriel-Petru Luca, Ion Verzea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25513
Methods for evaluating packaging sustainability
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
There are different parameters, which may affect packaging and its sustainability. Up to date, several methodologies and tools have been developed not only to quantify but also to assess the environmental impacts from packaging. Different criteria and indicators have been used depending on the objectives, scope and nature of the evaluation. One of the software tools developed is that one that assesses the packaging sustainability according to the Sustainable Packaging Alliance (SPA) ... Autori: Jose Jorge Espi Gallart, Jose Luis Vivancos Bono, Mercedes Hortal Ramos, Susana Aucejo Romero ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25515
Innovative solutions creates environmental advantages
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
This paper is a study about the symbiosis between the environmental aspects – innovation and competitive character of an industrial organization in our modern and sophisticated world. In actually global market and in conditions of world sever recession, for any organization or economic sector, the chance for surviving and development is given by adopting an innovative culture. This work contains case studies about the necessary steps for developing an innovative organization, a deb... Autori: Florin Negoescu, Eugen Axinte, Gheorghe Nagit, Adrian Iosub ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25517
Economic and environmental sustainability of project effects
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
Economic viability depends upon the sustainability of project effects. The economic analysis of projects should include an analysis of the financial sustainability of project agencies, and the environmental sustainability of outputs and inputs. Practical experience of project effects has drawn attention to the way in which financial and environmental effects impinge on benefit sustainability. Postevaluation experience also shows that, unless such factors are taken into account, econo... Autori: Luminita Horhota ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25519
Risk assessment and measurement of hazards in estonian enterprises
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
The paper focuses on occupational hazards and the determination of risk levels. Indoor climate, lighting, noise, chemicals and dust are examined. A simple/flexible risk assessment method is provided. The results of measurements of occupational hazards in six industries (mechanical, printing, wood, plastic, clothing and water purification plants) in Estonia are presented. The overall purpose of the paper is to draw the attention to the importance of measurements of occupational hazard... Autori: Piia Tint, Marina Jarvis, Karin Reinhold, Onnela Paas ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25521
Economical and social assessments approach on paper recycling
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
Life Cycle Cost Analysis (LCC) and Social Life Cycle Analysis (SLCA) are available methodologies for the economic and social assessment of a product or process along its life cycle. Different approaches regarding LCC and SLCA have recently emerged and several hypotheses are currently on testing and discussing. This paper shows existing LCC and a SLCA approaches as well as the methodology applied in the particular case of a paper recycling process. This study gathers part of the Europ... Autori: Beatriz Ferreira Pozo, Antonio Dobon Lopez, Carlos Lopez Lopez, Maria Calero Pastor ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25529
Equilibrium and kinetic studies of copper (ii) removal on Purolite S930 resin
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
The presence of heavy metals in the environment is a major concern due to their non-biodegradability, bioaccumulation tendency, persistence in nature and toxicity to many life forms. Different treatment techniques for wastewater laden with copper have been developed in recent years to decrease the amount of wastewater produced and to improve the quality of the treated effluent. All techniques have their advantages and limitations in application. One of the most used techniques to rem... Autori: Petru Bulai, Catalin Balan, Camelia Scripcariu, Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25531
Nitrogen adsorption of shale for use as media in constructed wetland
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
The constructed wetlands are considered as a low-cost alternative system for nitrogen removal. Shale was selected as a media in constructed wetlands, on the basis of adsorption capacity and suitability for plant growth. The specific objective of this study was to evaluate nitrogen adsorption capacity for using as a media in constructed wetlands. Shale was sieved into 5 particle sizes Shale A-E. The physical and chemical characteristics of shale showed that it is suitable to be use as... Autori: Amara Daothaisong, Jareeya Yimrattanabovorn ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25535
Removal of 4-chlorophenol by surfactant modified zeolites and surfactant modified alkali-treated natural zeolites
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
Chlorophenols are contaminants in soils, sediments, surface waters and groundwater, largely because of their worldwide utilization in the last 50 years as wood preservatives and general biocides in industry and agriculture. The toxicity of chlorophenols and their persistence in the environment require advanced treatment techniques for their removal.
Surfactant-modified natural zeolites (SMZs) represent an important class of sorbents for water treatment. This work presents a comparat... Autori: Roxana Elena Apreutesei, Cezar Catrinescu, Adrian Ungureanu, ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25537
Studies regarding advanced processes used for reactive dyes removal from textile effluents
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
In the textile finishing and dyeing industries, the total volume of water consumed is around 150 millions tons/year, and thus very large quantities of water are processed and produced as wastewater by textile plants. Quality indicators of textile wastewaters, like BOD and COD, have values which, in some cases, exceed 5 times the maximum concentration value (allowed by the national quality standards). One of the greatest concerns in wastewater treatment of a textile effluent is the co... Autori: Daniela Cailean, , Florin Brinza ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25538
Adsorption of humic acids and of some metal ions from aqueous solutions on activated carbons
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
This paper is the investigation concerning the removal, from surface water, of humic acids and of some cations (Cu2+, Al3+) on activated carbons AG-3, BAU, CASO-16 from individual solutions as well as from their mixtures both in static and dynamic conditions. The conclusions of the paper are that, when humic acids are adsorbed from micellar solutions, semiassociates are formed on the surface of activated carbon BAU (in its porous structure), while humic acids adsorption on activated ... Autori: Tudor Lupascu, Mihail Ciobanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25539
Study of morphology for geopolymer materials obtained from fly ash
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
Geopolymerization is a continuous developing field of research for utilizing solid waste and by-products. It provides a solution to many problems where hazardous residue has to be treated and stored under critical environmental conditions. Consumption of fly ash in the manufacture of geopolymer is an important strategy in making materials more environmentally friendly. Fly ash has been chosen as a base material in order to utilize this industrial waste.
Previous researches have show... Autori: Maria Harja, Marinela Bărbuţă, Maria Gavrilescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25542
New carbonic adsorbents for industrial sorting purification in vodka production
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
Modern requirements for activated carbons utilized in the refinement of water/alcohol mixtures are discussed. It is demonstrated that activated carbons obtained from coconut shells and apricot and peach stones are very similar in terms of durability, physicalchemical and adsorptive properties, providing high quality sorting. Utilization of novel stone-derived carbons allows 2,5 fold enhancement of filtration rate, as well as 3 fold enhancement of working resource of carbon columns.
... Autori: Viktor Mihailovici Mukhin, Natalia Alexandrovna Shubina, Irina Mihailovna Abramova, Inna Dmitrevna Zubova, Tudor Grigore Lupascu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25543
Self-bonded ets-10 pellets containing iron
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
In this work the experimental conditions to synthesize, by direct hydrothermal synthesis, self-bonded pellets of ETS-10 phase containing iron were studied.
The following gel composition was used: xNa2O-0.6KF-1.28xHCl-yFe2O3-0.2TiO2-1.49SiO2-39.5H2O with 0.8Â???xÂ???1.4 and 0.015Â???yÂ???0.08.
The products obtained were characterized through X-ray diffraction on powders (XRD), thermal analysis (TG, DSC, DTG), scanning electron microscopy (SEM) and microanalysis (EDS). The data obtai... Autori: Pierantonio De Luca, Danilo Vuono, Monica Filice ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25544
Environmentally friendly industrial technologies: Case studies
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
Nowadays the global climate change is one of the most significant questions from environmental, social, political and economic point of views. Global warming caused by green house gases emitted into the air is a result of the human activities (Energy Revolution, 2005-2007).
The majority of the industrial processes has significant impact to human life and deteriorates the natural environment. In this paper different technologies (three industrial technologies) will be dealt with spec... Autori: Zsofia Kovacs, Orsolya Kakucs, Janos Lako, , Tamas Fulop, Tatiana Yuzhakova, , Endre Domokos ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25545
Assessment of heavy metal contamination and impact on surface waters in IaÂ?i city, Romania
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 Abstract
The paper makes qualitative and quantitative analyses of heavy metal contamination of surface waters in Iasi City. The examination of data acquisited from the specific sections of the rivers Bahlui (upstream section, Iasi water treatment plant, Holboca section, downstream section, Iasi water treatment station), Nicolina (quarterly data from the established monitoring system) was performed, based on data provided by the Environmental Protection Agency of Iasi District and Prut Water D... Autori: Corneliu Horaicu, Florea Cornel Gabrian, Irina Grozavu, Catalin Constantin Calu, Monica Horaicu, Brindusa Robu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25546
Assessment of the environmental impacts generated by rubber processing activity
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 Abstract
This work presents a global approach of the impact generated in the environment by rubber processing activity. The objective analyzed as a case study is a company that produces rubber tires for trucks and industrial vehicles.
The experimental part includes the determination of quality indicators for each environmental factor (air, water, soil) and the evaluation of environmental impact on these factors. Determination of the environmental quality indicators was done by sampling and a... Autori: Aurica Grec, Florin Dumescu, Corneliu Maior ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25547
Behaviour of persistent pollutants and risks associated with their presence in the environment - Integrated studies
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 Abstract
The paper describes the complex research developed within a national research project. The proposed studies and researches are according to the thematic frame of the program cooperation-environment of FP7, whose fundamental objective is related to the natural and anthropogenic environmental problems and resources. Under this context, the project proposes a coherent, conceptual framework for integrated environmental risk assessment and management, generated by the presence of persiste... Autori: Maria Gavrilescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25548
Contributions to the improvement of ambiental comfort in residential buildings
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 Abstract
The aim of the study is to outline new opportunities of improving buildings ambient comfort and thus to determine energy consumption cut down. The second half of the XX century witnessed the development of society disregarding the extent to which environment was affected by the industrial production; pollution was triggered by the widespread industry which made use of technologies whose main target was the increase of production output at any cost, an aggressive industry with respect... Autori: Vladimir Corobceanu, Răzvan Giuşcă, Raluca Giusca ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25549
Public management and local policy regarding city environment
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 Abstract
In the last decades human society came to realize that pollution and irrational use of resources diminish the capacities for future generations to satisfy their needs. That is why policies regarding environment protection start being implemented at city level with the participation of local authorities and the support of citizens. Moreover, such policies are beginning to have results, at environmental level. The example of the city of Ploiesti is commented upon in this paper. The cit... Autori: Augustin Mitu, Catalin Popescu, Daniela Uta ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25554
Water footprint and challenges for its application to integrated water resources management in Romania
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 Abstract:
This paper analyses and discusses the concept of water footprint, developed in order to have an indicator of water use in relation to consumption of people. The water footprint of a country is defined as the volume of water needed for the production of the goods and services consumed by the inhabitants of the country. The use of water resources comprises water use in the agricultural, industrial and domestic sectors. The overall objective of water management, which adopts integrate... Autori: , Simona-Andreea Ene Popa ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25556
Strategic environmental assessment for plans, programs, policies in Romania: multi-criterial method
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 Abstract
The purpose of Strategic Environmental Assessment (SEA) is to ensure that environmental considerations inform and are integrated into strategic decision-making in support of environmentally sound and sustainable development. In particular, the SEA process assists authorities responsible for plans and programs, as well as decision-makers. The main benefits of SEA consist in: providing high level of environmental protection, improvement of the quality of plan, program or policy making,... Autori: Brindusa Robu, Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25558
Assessment of human and natural impacts over water quality in the prut river basin, Romania
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 Abstract
The Integrated Water Resources Management (IWRM) concept evolved over time, the focus on river basin management, consultation and coordination with all water users, and the use of the �polluter pays?? principle being all included in the EU Water Framework Directive (EC Directive, 2000), which forms the basis of water management undertaken in Europe.
The role and significance of water resources for sustainable development, as well as the water crisis experienced nowadays are ... Autori: , Claudia Cojocariu, Corina - Petronela Musteret, Ioana Gabriela Dascalescu, Ionut Caraene ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25559
Inter-cities transfer of a transportation project
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 Abstract
Transferability process identifies the transportation projects which could be implemented successfully in different cities in order to encourage the good practices. This paper proposes a method to evaluate the environmental efficiency of a project by using a hybrid approach based on utility theory and data mining techniques. Transferability principle is applied to show the environmental efficiency of an access controlled area in the hyper centre of two different cities. COPERT III te... Autori: Catalin Popescu, Luminita Ion, Tatiana Cucu, Jean-Marie Boussier, Augustin Mitu, Daniela Uta ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25560
Modeling and simulation of quality indicators of surface water
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 Abstract
The efficient understanding and application of mathematical models in the study of environmental phenomena keep up with the latest results in the mathematical domain which could provide solutions for controlling, analyzing, predicting and study of risk phenomena. This paper presents a browsing through some mathematical categories of interpreting statistical data, examples and their analysis in connection with the degree of polluting the water down the Danube River with the help of qu... Autori: Valerian Antohe, Constantin Stanciu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25562
Optimization of process variables to maximize the copper loading capacity of Purolite S930 resin
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6
Abstract
The practical capacity of an ion exchange or chelating resin depends on various process variables, such as initial solution pH, initial metal ion concentration, metal/resin ratio, contact time and temperature. This work presents the optimization of process variables to maximize the copper loading capacity of chelating resin Purolite S930. To study the combined effect of the initial solution pH, initial Cu (II) concentration and resin dosage were used a 23 orthogonal central composi... Autori: Petru Bulai, Catalin Balan, Corneliu Cojocaru, Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25563
SnO2-CeO2 oxidation catalysts
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 Abstract
The aim of this work was to obtain ceria-based catalysts with improved oxidation properties by adding tin dioxide (5, 10 and 20 wt %) and using the co-precipitation method of preparation. The samples were characterized by BET, ESEM, and DRIFT spectroscopy. The activity of SnO2-CeO2 catalytic systems in CO oxidation was studied between room temperature to 673 K. It was found that the increase of SnO2 content obviously increases the low temperature CO conversion. However, at 673 K all ... Autori: Tatiana Yuzhakova, , Monica Caldararu, Jozsef Kovacs, Anca Vasile, Georgeta Postole, Cristian Hornoiu, Endre Domokos ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25565
An investigation of the sorption of acid orange 7 from aqueous solution onto soil
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 Abstract
The goal of the study was to investigate the sorption behavior of Acid Orange 7 (C.I. 15510) onto soil collected from Iasi area (Romania). The sorption isotherm, kinetic and thermodynamic studies were performed by batch mode. The effects of experimental parameters such as contact time, pH value (2-12) and temperature (20 - 400C) have been studied. Also the influence of initial dye concentration (10 - 100 mg/L) and sorbent dosage (from 5 g L-1 to 150 g L-1) were studied. It was found ... Autori: Camelia Smaranda, Dumitru Bulgariu, Maria Gavrilescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25566
Application of several aluminium prehydrolysed coagulants in surface water treatment for potabilization
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 Abstract
A prehydrolyzed aluminium chloride (PAC), commercial product selected from a previously studied series, and the electrochemically obtained PAC (E-PAC) were tested as coagulants, comparatively with the classical aluminium sulfate (alum). A new method for producing E-PAC has been applied. The level of turbidity, the amount of total organic carbon, the UV-254 absorbance and the residual aluminium were evaluated, for determining the efficiency of the coagulation process in all situations... Autori: Adina Pacala, Ilie Vlaicu, Ciprian Radovan ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25569
Textile wastewater treatment by homogeneous oxidation with hydrogen peroxide
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 Abstract
The textile wastewaters have a diverse composition depending both on the used raw materials and applied manufacturing technologies. These wastewaters may contain various pollutants such as organic compounds (e.g. residual dyes), suspended solids, metal ions etc. Most of dyes are synthetic compounds with aromatic molecular structures and non-biodegradable. The oxidative destruction via homogenous oxidation processes with hydrogen peroxide (simple chemical oxidation with H2O2 or advanc... Autori: Carmen Zaharia, Daniela Suteu, Augustin Muresan, Rodica Muresan, Alina Popescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25570
Research on the effects of soil improvement by fertilization on the quality of winter wheat
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 Abstract
Some doses of compost obtained in farms were tested during 2004-2006, comparative to chemical fertilization, at S.C. Soimul S.R.L. from Vacareni Plain, Jijila village, Tulcea district. It was found out that fertilization with 30 t/ha of compost had established the highest production of wheat Dropia variety, 6512 kg/ha, with 40.7% higher than unfertilized variant and 16.8% higher than N160P80K80 fertilized variant.
The highest protein content of 15.21% has been obtained in the case o... Autori: Mihail Axinte, Teodor Robu, Marius Zaharia, Costel Moglan, Carmen Ghitau ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25575
Assessment of the anthropogenic impact on water systems by fluorescence spectroscopy
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 Abstract
Organic matter is ubiquitous in every type of aquatic system and due to the influence that it has on their ecological health, can be used as a useful water quality indicator. Fluorescence spectroscopy has been efficiently used in the past decades to determine and characterize organic matter, and its link to function and chemical water quality.
In this paper, fluorescence fingerprints are presented in order to evidence the anthropogenic influence on different aquatic systems. Using f... Autori: Elfrida M. Carstea, Luminita Ghervase, Gabriela Pavelescu, Dan Savastru ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25576
Studies on sorption and transport processes of cadmium in soils
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 Abstract
Heavy metals produced and released by anthropogenic activities generate serious environmental problems. Ions of toxic metals can bind to the mineral surface in a number of ways, including absorption, adsorption, precipitation, ion exchange.
The paper shows that the fate and migration of heavy metals in soils strongly depend on the physical properties and chemical and mineralogical composition of such environments. Cadmium is one of the most toxic metals with carcinogenic and teratog... Autori: Vasile Lucian Pavel, Dumitru Bulgariu, Laura Bulgariu, Raluca Maria Hlihor, Maria Gavrilescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25577
Physiological changes in seedling germination and growth plant under chemical stress conditions
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 Abstract
When plants are exposed to heavy metals influence, the processes of growth inhibition, ion leakage of all membrane, distribution of pigment and even more death of plants are produced. The physiological and biochemical changes in germinating seedling and cultivation in plastic pots experiments of different plant species (maize, bean, oat, and spinach) were investigated under the influence of copper ions as stress agent. Differences between tolerances against copper excess in the case ... Autori: Alina Stingu, Irina Volf, Valentin I. Popa ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25578
Overview on paper and board recycling in Europe
Environmental Engineering and Management Journal › Vol. 9 › Nr. 1 Abstract
In Europe, recovered paper is a valuable raw material for the paper industry already since the early 20th century, actually corresponding to half of the total use of fibres for paper and board production. The aim of this paper is to describe the present status of paper recycling in Europe and thereby to create a data basis for evaluation the results of the FP7 project ?Recovered Paper Sorting by Innovative Technologies ? SORT IT. The overview is based on specific questionnaires addre... Autori: Dan Gavrilescu, Elena Bobu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25579
Management of the northern-eastern region of romania viewed from the perspective of ecotourism development
Environmental Engineering and Management Journal › Vol. 9 › Nr. 1 Abstract
Tourism and services are important components of any developed European society. The Northern-Eastern Region of Romania (NER), which comprises six counties with various problems, is lacking of good promotion and there are major gaps between the component counties. The failures of the communication and promotion system are caused by an insufficient development of the domestic network of tourist information offices within the towns and villages. The limited financial resources of the l... Autori: Florin Alexandru Luca, Igor Creţescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25580
Enhancement of separation performances of a new azoic derivative from industrial water and the posibility to recover its complex as nanomaterial
Environmental Engineering and Management Journal › Vol. 9 › Nr. 1 Abstract
In order to obtain new complexes of Fe(III) with multiple uses, their characteristics, important applications and also the obtaining conditions are studied. The obtaining conditions consist in mixing solutions of the same concentrations of ligand 2 amino-6-methoxy-benzothiazole sulphonic acid??†’1-naphtol-4-sulphonic acid with FeCl3. The solutions are mixed in molar ratios of 1:1, 2:1 and 3:1 (ligand to central metallic atom). For determining the molar ratio ligand:central metall... Autori: Daniela Zavastin, Doina Sibiescu, Igor Creţescu, Ioan Roşca, Mihaela Dana Tutulea, Mihaela Vizitiu ISSN: 1843-3707 http://www.ecozone.ro/reviste.php?RID=25581
A new real-time monitoring technique of the biochemical constituents of the environment
Environmental Engineering and Management Journal › Vol. 9 › Nr. 1 Abstract
As a result of the global climatic changes generated by the alteration of the environment through polution, the ecosystems' natural ressources are incontrollably distributed, generating unforseeable effects at the level of the subsequent evolution of the natural balance factors. One of the greatest challenges of the science concerned with environment protection, is that of real time monitoring of the biochemical constitution. The real time monitoring of a great number of biochemical ... Autori: Andrada Pretorian, Bojin Dionezie, Gabriel Epure, Ion Savu, Lucia Mutihac, Mihaela Muresan, Nicoleta Petrea, Petrisor Zamora Iordache, Razvan Petre, Rodica Lungu, Vasile Somoghi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25583
Comparative study of the adsorption-desorption cycles of hexane over hypercrosslinked polymeric adsorbents and activated carbon
Environmental Engineering and Management Journal › Vol. 9 › Nr. 1 Abstract
In this work, the behavior of n-hexane vapors in the adsorption-desorption cycles of non-functionalized polymeric adsorbents (MN 202 and MN 250) and granular activated carbon (AC 20) was studied. The adsorption experiments were performed in a fixed bed column, under dynamic conditions, at 30?C and atmospheric pressure. The inlet concentration of n-hexane in the air streams was 0.115 mg/cm3 (32500 ppm) and the space velocity was 2.75 s-1. Also, desorption experiments were performed in... Autori: Adela Marilena Buburuzan, Cezar Catrinescu, Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25584
Chelating sorbent containing two types of functional groups hydroxamic acid and amidoxime for lead (II) ions effluent management
Environmental Engineering and Management Journal › Vol. 9 › Nr. 1 Abstract
The removal efficiency of Pb(II) from aqueous solutions by sorption on a bifunctional acrylic ion exchange resin with groups of hydroxamic acid and amidoxime is presented. It was found that Pb(II) sorption potential varies as function of solution pH, initial metal concentration, contact time and temperature. From aqueous solutions with Pb(II) initial concentration of 82.96 ?ŽÂ?g/mL the sorption percentage is 98.64%. The Langmuir and Freundlich isotherms were used to model the Pb(II) ... Autori: Anca Ceica, Carmen Paduraru, Igor Creţescu, Lavinia Tofan, Violeta Neagu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25586
The treatment and minimization of metallurgical slag as waste
Environmental Engineering and Management Journal › Vol. 9 › Nr. 1 Abstract
The slags are an important waste and by-products of metallurgical industry. The present paper summarizes results obtained from physical and chemical analyses on metallurgical slag provided from S.C. ?Mittal Steel Galati? S.A. The physical structure and gradation of granulated slag depend on the chemical composition of the slag, its temperature at the time of water quenching, and the method of production. The following mineralogical components were noticed through bypowder X-ray diffr... Autori: Maria Cioroi, Licuta Nistor Cristea, Igor Creţescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25588
Integrated treatment of leachate from municipal waste solid landfill
Environmental Engineering and Management Journal › Vol. 9 › Nr. 1 Abstract
The present paper proposes an integrated-treatment process of leachate from a municipal landfill, which involves two treatment steps. The first step consists in diminishing the organic content through an advanced oxidation process using ozone and hydrogen peroxide. The second step is performed in order to diminish the content of heavy metals through a sorption process on a natural low-cost biosorbent, thus the traces of organic substances remained after oxidative degradation or oxida... Autori: Carmen Paduraru, Corneliu Pohontu, Igor Creţescu, Lavinia Tofan, Marius Sebastian Secula, Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25589
In vitro corrosion study by electrochemical and surface analysis techniques of a ti50ta alloy for dental applications
Environmental Engineering and Management Journal › Vol. 9 › Nr. 1 Abstract
Commercial pure titanium (Cp-Ti) and titanium alloys are used on large scale in restorative dentistry due to their advantages as compared with other similar materials: chemical inertia, low density, high strength, high corrosion resistance in biological media and increased biocompatibility.The effect of fluoride and pH on the corrosion behaviour of Cp-Ti and a new Ti50Ta alloy were examined by open circuit potential (EOC) measurement, linear polarization, potentiodynamic polarization... Autori: Daniel Mareci, Daniel Sutiman, Georgiana Ciurescu, Igor Creţescu, Romeo Chelariu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25591
Environmentally friendly techniques for chemical pulp bleaching
Environmental Engineering and Management Journal › Vol. 9 › Nr. 1 Abstract
In the last decades there has been a rapid evolution of techniques for production of bleached pulp. Much of these processes have been environmentally driven. New techniques have been developed in order to replace chlorine-based reagents in producing bleached pulp. Reducing the environmental impact of pulp production can be attain by using non-pollutant bleaching reagents like oxygen and related compounds.
This paper deals with present findings and general trends in environmentally-s... Autori: Adrian Catalin Puitel, Alexandru Botar, Dan Gavrilescu, Gheorghe Dutuc, Grigore Craciun ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25592
Equilibrium and kinetic studies of acid dye sorption onto soils from Iasi area
Environmental Engineering and Management Journal › Vol. 9 › Nr. 1 Abstract
The aim of this study was to investigate the Congo Red (CR) sorption behavior onto six soils from Ia?…?¸i area, with different characteristics. The rate of sorption of Congo red dye molecules from aqueous solution by soil was studied in batch conditions. The rate of sorption was very rapid in the first 5-10 minutes and reached a maximum in 20 minutes. Kinetic modeling analysis of the pseudo-first-order, pseudo-second-order, intraparticle diffusion and Elovich equations reveals that t... Autori: Camelia Smaranda, Dumitru Bulgariu, Maria Gavrilescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25594
Device for rapid preparation of samples for detection and identification of the toxic compounds
Environmental Engineering and Management Journal › Vol. 9 › Nr. 1 Abstract
This paper presents a portable device for rapid preparation of samples, in situ, in order to facilitate the detection and identification of toxic substances. This product is for research and provides increased sensitivity NBC detection equipment (ion mobility spectrometers, indicated tubes), and decreasing the time needed for preparation solid and liquid samples to identify toxic substances by spectrometric techniques (gas chromatography with mass spectrometry). It is used especially... Autori: Alexandru Bobes, Aurica Dumitrescu, Doru Alexe, Gabriel Epure, Liliana Rece, Nicoleta Petrea, Petrisor Zamora Iordache, Razvan Petre, Vasile Somoghi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25595
Ecological education for sustainable tourism in Romania?s North-East region
Environmental Engineering and Management Journal › Vol. 9 › Nr. 1 Abstract
The paper tackles the issue of ecological tourism in Romania?s North-East Region. This region offers some opportunities such as low costs for tourist operators and highly qualified local hosting personnel that can make it attractive. The concept of sustainable development is presented and its features are discussed in the context of tourism. Ecological education is presented as a collateral effect that naturally derives from developing a sustainable tourism, especially in Romania?s N... Autori: Brindusa Robu, Carmen Cătălina Ioan, Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25597
Impact of chemicals on derivatives with important therapeutic activity in Calendula Officinalis L. flores
Environmental Engineering and Management Journal › Vol. 9 › Nr. 1 Abstract
In the study, the accumulation of secondary metabolites present in Calendula officinalis L. flowers with importance in therapeutics was examined, after the treatment with some substances considered being mutagens. The effect of substances appliedat different concentrations and different times of action was studied, qualitatively and quantitatively, considering various methanol extracts, obtained from the inflorescenses of Calendula officinalis L, which contained polyphenolic fraction... Autori: Brindusa Robu, Constantin Leonte, Elvira Gile, Roxana Vatavu, Teodor Robu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25598
Catalytic wet hydrogen peroxide oxidation of 4-chlorophenol over iron-exchanged clays
Environmental Engineering and Management Journal › Vol. 9 › Nr. 1 Abstract
Chlorophenols were selected for this study because most of them are toxic and difficult to biodegrade. They represent a particular group of priority toxic pollutants listed by the US EPA in the Clean Water Act and by the European Decision 2455/2001/EC. The efficiency of advanced oxidation processes for degradation of chlorophenols has been extensively documented. The catalytic wet hydrogen peroxide oxidation process, involving oxidation with H2O2 and solid catalysts in mild reaction ... Autori: Brindusa Dragoi, , Cezar Catrinescu, Daniela Arsene ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25601
Monitoring of several radioisotopes in soils and plants from uranium mining areas
Environmental Engineering and Management Journal › Vol. 9 › Nr. 2 Abstract
A five-year survey of gross ?ŽÂ±+?ŽÂ?, 226Ra, and 137Cs in soils and selected spontaneous plants (Hypnum cupressiforme, Urtica dioica,
Dryopsteris filix-mas, and Cirsium arvense) in the Crucea and Lesu Ursului mining areas is presented. The maximum activities in
soils were fond to not exceed 0.257 Bq/g for gross ?ŽÂ±+?ŽÂ?, 0.35 Bq/g 226Ra, and 0.05 Bq/g 137Cs. All plant species shown similar
capabilities for gross ?ŽÂ±+?ŽÂ? and 226Ra accumulation. The soil-to-plant transfer coeffi... Autori: Alexandru Cecal, Catalin C. Nica, Dan T. Costin, Danut G. Cozma, Karin Popa ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25604
GIS analysis of wetland covered by Natura 2000 sites
Environmental Engineering and Management Journal › Vol. 9 › Nr. 2 Abstract
Geographical Information Systems (GIS) can be used in biological conservation as decision support systems, integrating the spatially referenced CORINE land cover and using data to assess whether natural protected areas cover particular types of ecosystems and/or biogeographical diversity.
This study analyzes whether the Natura 2000 sites, which are Special Protection Areas and Special Areas of Conservation declared in Romania cover the diversity of wetlands and coastal areas habitat... Autori: Alexandru-Ionut Petrisor ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25605
Analysis of distribution of oxygen transfer rate in stirred bioreactors for fungus broths 1. Suspensions of P. Chrysogenum free mycelia
Environmental Engineering and Management Journal › Vol. 9 › Nr. 2 Abstract
Unlike the P. shermanii and S. cerevisiae cultures, the study on the distribution of oxygen transfer in stirred bioreactor for P. chrysogenum free mycelia broths indicated that this process is controlled mainly by the high apparent viscosity of broths, and less by the presence of fungus biomass. For this reason, the influence of fungus accumulation on the reduction of kla is attenuated compared with that obtained for bacterial or yeasts broths. The lower influence of fungus biomass i... Autori: Anca-Irina Galaction, Dan Caşcaval, Marius Turnea, Stefanica Camarut ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25606
Optimization by NN ? GA technique of the metal complexing process. potential application in wastewater treatment
Environmental Engineering and Management Journal › Vol. 9 › Nr. 2 Abstract
Some samples consisting in silica functionalized in different degrees with dihydroxy-azomethine groups have been tested as sorbents for copper (II) ions from aqueous solutions in different conditions. An indirect monitoring procedure for the complexing process was approached: UV-VIS absorption intensity ? time variation for the metal-containing solution in which complexing silica was soaked. In order to find the conditions in which the maximum efficiency in the metal absorption can b... Autori: Ciprian-George Piuleac, Maria Cazacu, Silvia Curteanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25608
Environmental decision support systems based on models and model-based reasoning
Environmental Engineering and Management Journal › Vol. 9 › Nr. 2 Abstract
Decision trees and rule-based systems including variants based on propositional and fuzzy logic have been the method of choice for knowledge representation in many applications of environmental decision support systems. Reasons are the ease of use, the capability of representing uncertainty, and the fast computation of results at runtime when using decision trees, rule-based systems, or other similar means for knowledge representation. Unfortunately there are drawbacks related with t... Autori: Franz Wotawa, Ignasi Rodriguez-Roda, Joaquim Comas ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25614
Kernel methods and neural networks for water resources management
Environmental Engineering and Management Journal › Vol. 9 › Nr. 2 Abstract
This paper offers a hybrid approach, for the effective estimation of the maximum water supply and the special water flow in the watersheds of Thasos Island. This modeling effort was carried out by employing both artificial neural networks (ANNs) and kernel algorithms. Moreover support vector machines (SVMs) were used for the optimization of the ANNs. Support vector machines were applied to determine the loss of the developed ANN and to enhance its ability to generalize. As a matter o... Autori: Lazaros S. Iliadis, Stavros Tachos, Stefanos I. Spartalis ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25615
Artificial intelligence applications in the atmospheric environment: status and future trends
Environmental Engineering and Management Journal › Vol. 9 › Nr. 2 Abstract
The Air Quality Management problem calls for detailed, case-specific knowledge and requires, due to legal mandates, the development of operational, environmental parameter related, incident forecasting. Both targets can be met by applying Artificial Intelligence (AI) methods, and by employing relevant computational algorithms that are capable of producing reliable results. The current paper provides with an overview of the problem domain, identifies goals and proposes methods that ma... Autori: Kostas D. Karatzas ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25616
Nitrate removal from aqueous solution using MgCl2 impregnated activated carbon
Environmental Engineering and Management Journal › Vol. 9 › Nr. 3 Abstract
The aim of this study was to assess nitrate removal using impregnated activated carbon (AC) with MgCl2. After impregnating of AC using heat treatment, the MgCl2 is converted to efficient MgO. The denitrification was conducted at pH 6.2, 25?C, and initial concentrations of 20 mg/L nitrate-N. The effects of the operating parameters including AC dosage, pH, and contact time have been investigated. Experimental data show that AC modified by MgCl2 was more effective than virgin AC for nit... Autori: Abbas Rezaee, Hatam Godini, Sahand Jorfi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25618
Disinfection reagents in prut river treatment for drinking water production
Environmental Engineering and Management Journal › Vol. 9 › Nr. 3 Abstract
The chlorine is the reagent of the widest application in disinfection processes of drinking water but it shows the short coming of reacting with the organic substances therein giving trihalomethanes with possible cancerous action. For this reason the tendency is noticed of replacing chlorine by reagents with higher disinfecting properties and lack of final toxic products. The chlorine dioxide could be used to this purpose. A comparative study on the effects obtained by treating the P... Autori: Corneliu Oniscu, Dan George Popovici ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25620
Study on removal of cadmium from aqueous solutions by adsorption on bael tree leaf powder
Environmental Engineering and Management Journal › Vol. 9 › Nr. 3 Abstract
The adsorption behavior of bael tree (BT) leaf powder for cadmium ions from aqueous solutions has been investigated as a function of appropriate equilibrium time, adsorbent dose, adsorbate concentrations and pH using a batch system. Studies showed that the pH of aqueous solutions affected cadmium removal as a result of the fact that removal efficiency increased with increasing solution pH. The maximum adsorption was 93.56% at solution pH equal to 6.0, contact time of 30 min and initi... Autori: Ponnusamy Senthilkumar, Rangasamy Gayathri ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25621
Integrated management and control system for water resources
Environmental Engineering and Management Journal › Vol. 9 › Nr. 3 Abstract
This paper presents an integrated system of management and control for water resources, designated to improve the process of finding sustainable solutions for the problems of water pollution according to EU regulations. It is known that, regardless of the type of the source of pollution, punctual or diffuse, the water quality for both surface and underground waters can be severely damaged. Consequently, measures have to be taken in order to reduce/suppress the water pollution. In ord... Autori: Aurelia Caldararu, Lucian P. Georgescu, Mirela Voiculescu, Virgil Olaru ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25622
Modeling and simulation of an ultrafiltration process for the removal of suspended solids and colloids from wastewater
Environmental Engineering and Management Journal › Vol. 9 › Nr. 3 Abstract
Mathematical modeling of the ultrafiltration (UF) process is motivated by the complexity of retention phenomena that occur during the UF in conjunction with the complexity of wastewater matrices submitted to ultrafiltration, as well as by the need to predict the process behavior in extreme conditions, such as high pollution loads for UF-membrane cleaning cycles optimization or for automated control of the process. Thus, series of laboratory-scale ultrafiltration experiments were perf... Autori: , George Barjoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25630
Chemical oxidation of treated textile effluent by hydrogen peroxide and fenton process
Environmental Engineering and Management Journal › Vol. 9 › Nr. 3 Abstract
In this study the possibility to apply the oxidation process for treating textile effluents, by using hydrogen peroxide and Fenton process was evaluated through determining the color and chemical oxygen demand (COD) removal. The experimental variables studied include the dosages of hydrogen peroxide and iron salts, oxidation time and pH value. The result showed that oxidation process using hydrogen peroxide alone is inefficient in COD and color removal, since only 25 % of COD removal... Autori: Abdelnaser Omran, , Marniyanti Mamat Noor ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25631
Equilibrium and kinetic modeling of Zn (II) sorption from aqueous solutions by sphagnum moss peat
Environmental Engineering and Management Journal › Vol. 9 › Nr. 3 Abstract
Equilibrium and kinetics of sorption of Zn (II) ions from aqueous solutions of pH 5 on indigene (Romanian) peat moss were investigated in batch system. The experimental equilibrium sorption data at three temperatures were analysed by Freundlich, Langmuir, Tempkin and Dubinin-Radushkevich sorption isotherm models. Results indicate the following order in to fit the isotherm equations: Langmuir > Tempkin > Dubinin-Radushkevich > Freundlich. The equilibrium sorption capacity determine... Autori: Angelica Kicsi, Doina Bilba, Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25632
Identifying anaerobic digestion models using simultaneous batch experiments
Environmental Engineering and Management Journal › Vol. 9 › Nr. 3 Abstract
Mathematical models have become a valuable tool to study the anaerobic digestion process, to guide plant design and optimize operation strategies. Models require accurate and significant parameter values for being useful. Although the identification problem is an issue of concern, often is neglected. The described method for model calibration consists on the performance of simultaneous batch experiments (SBE), which requires simple and usually available equipment, and is based on the... Autori: Belen Fernandez, Jordi Palatsi, Josep Illa, M. Angels Colomer, Xavier Flotats ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25636
Biosorption of hexavalent chromium based on modified Y zeolites obtained by alkali-treatment
Environmental Engineering and Management Journal › Vol. 9 › Nr. 3 Abstract
The structural modification of external surface of NaY was investigated in order to enhance efficient biosorption systems consisting of a bacterial biofilm, Arthrobacter viscosus, supported on that zeolite, for removing hexavalent chromium from aqueous solutions. The supported bacterial biofilm reduces Cr(VI) to Cr(III) and this cation is then retained in the zeolite by ion exchange. NaY zeolite was modified by alkali-treatments using NaOH 2.0 M, with two different contact periods of... Autori: Bruna Silva, Cristina Quintelas, Hugo Figueiredo, Isabel C. Neves, Manuel F.R. Pereira, Teresa Tavares ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25637
Denitrifying potential of an activated sludge derived consortium
Environmental Engineering and Management Journal › Vol. 9 › Nr. 3 Abstract
The aim of this work was the evaluation of the denitrification potential of a consortium of activated sludge adapted to anoxic conditions. As the carbon source is the main parameter influencing the denitrification process, in the first stage three carbon sources (acetate, citrate and glucose) were assayed in batch activity tests. The highest denitrification efficiency was ttained with acetate, being nitrate and nitrite completely reduced. The adapted sludge was then used as a potent... Autori: Joana Azeredo, Pilar Teixeira, Rosario Oliveira, Zelia Fernandes ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25638
Environmental Engineering and Management Journal, Vol. 9 Nr. 5
Environmental Engineering and Management Journal › Vol. 9 › Nr. 5 ? SUSTAINABLE CONCRETE HARDENING PROCESSES IN NORMAL CLIMATIC AND THERMAL TREATMENT CONDITIONS
? THE ENVIRONMENTAL DIMENSION ? AN INTERDISCIPLINARY RESEARCH AREA
? MENU PLANNING STRATEGY BASED ON ECOLOGICAL FOOTPRINT
? EVALUATING ENVIRONMENTAL IMPACT OF NIGERIAN COMPOSTED WASTES USING LABORATORY EXTRACTION TEST
? IN SITU RADIOFREQUENCY FIELD LEVEL ASSESSMENT IN TWO URBAN AREAS IN ROMANIA: OPEN QUESTIONS TO ELECTROMAGNETIC POLLUTION
? INNOVATIVE SOLUTION FOR WARNING ON HI... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25657
Environmental Engineering and Management Journal, Vol. 9 Nr. 4
Environmental Engineering and Management Journal › Vol. 9 › Nr. 4 ? POLLUTION PREVENTION, A KEY TO ECONOMIC AND ENVIRONMENTAL SUSTAINABILITY
? A COMPARISON BETWEEN DIFFERENT SCENARIOS OF ROMANIAN MUNICIPAL SOLID WASTE TREATMENT BEFORE LANDFILLING
? A STUDY ON ENERGY CONSUMPTION IN ROMANIA
? ENVIRONMENTAL INFLUENCES ON STRESSED METALLIC SURFACES
? ASPECTS OF HYDRODYNAMICS AND MASS TRANSFER IN DIFFUSED AERATION SYSTEMS
? THE STATUS OF SOME SELECTED HEAVY METALS IN ROADSIDE SOILS OF BURSA PROVINCE, TURKEY
? PREPARATION AND CHARACTERI... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25656
Environmental Engineering and Management Journal, Vol. 9 Nr. 6
Environmental Engineering and Management Journal › Vol. 9 › Nr. 6 ? RESEARCH ON NaCl SALINE AEROSOLS I. NATURAL AND ARTIFICIAL SOURCES AND THEIR IMPLICATIONS
? DECISION SUPPORT MODELS FOR SOLID WASTE MANAGEMENT ? AN OVERVIEW
? POLICY AND STRATEGY FOR IMPROVING SUSTAINABLE SOCIAL DEVELOPMENT PROGRAMMES
? APPLICATION
OF SHALLOW POND SYSTEM USING WATER HYACINTH FOR DOMESTIC WASTEWATER
TREATMENT IN THE PRESENCE OF HIGH TOTAL DISSOLVED SOLIDS (TDS) AND HEAVY
METAL SALTS
? TRENDS OF THE COMMUNITARIAN COHESION POLICIES AND ADVERTISING FOR EC... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25658
Environmental Engineering and Management Journal, Vol. 9 Nr. 7
Environmental Engineering and Management Journal › Vol. 9 › Nr. 7 ? MUNICIPAL SOLID WASTE LANDFILLING AND TREATMENT OF RESULTING LIQUID EFFLUENTS
? ROMANIA: ENTREPRENEURIAL VALUES AND SUSTAINABILITY
? THE COMPRESSIVE STRENGTH OF WOODEN BRIQUETTES USED AS RENEWABLE FUEL
? ECO-FRIENDLY EXTRACTION AND SEPARATION METHODS OF CAPSAICINES
? ADDRESSING ISSUES OF GEOENVIRONMENTAL RISKS IN DOBRUJA, ROMANIA/BULGARIA
? ADSORPTION OF 2,4-DINITROPHENOL AND 2,6-DINITROPHENOL ONTO ORGANOCLAYS AND INORGANIC-ORGANIC PILLARED CLAYS
? APPLICATION
O... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25659
Environmental Engineering and Management Journal, Vol. 9 Nr. 8
Environmental Engineering and Management Journal › Vol. 9 › Nr. 8 ? GREEN SYNTHESIS OF SYMMETRICAL CARBONATE FT-IR STUDY
? SINTERED BASALT AS A PROMISING SUSTAINABLE MATERIAL IN MECHANICAL ENGINEERING
? DESIGN OF BUILDINGS INCLUDING ENVIRONMENTAL IMPACT
? ANALYSIS METHODS FOR PYRAZINE-2,3-DICARBOXYLIC ACID SYNTHESIZED USING ELECTROCHEMICALLY REGENERATED KMnO4
? RESEARCH ON NaCl SALINE AEROSOLS II. NEW ARTIFICIAL HALOCHAMBER CHARACTERISTICS
? DETERMINATION OF AEROSOLS POLLUTANTS ON MEMBRANES. 1. MEMBRANES PREPARATION AND CHARACTERIZATIO... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25660
Environmental Engineering and Management Journal, Vol. 9 Nr. 9
Environmental Engineering and Management Journal › Vol. 9 › Nr. 9 ? STUDY OF BIODIESEL PRODUCTION FROM OILSEED PLANTS II. EVALUATION OF BIODISEL PRODUCTION FROM SOME CULTIVARS OF RAPES
? STUDY
OF BIODIESEL PRODUCTION FROM OILSEED PLANTS I. EVALUATION OF THE
GENETIC SIMILARITY OF SOME Brassica Napus CULTIVARS USING RAPD MARKERS
? STRUCTURAL CHARACTERIZATION AND IN VITRO CYTOTOXIC POTENTIAL OF COAL DUST IN A ROMANIAN POWER PLANT
? MUNICIPAL SOLID WASTE MANAGEMENT IN BENGHAZI (LIBYA): CURRENT PRACTICES AND CHALLENGES
? COMPARATIVE ENVIRONM... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25661
Environmental Engineering and Management Journal, Vol. 9 Nr. 12
Environmental Engineering and Management Journal › Vol. 9 › Nr. 12 ? POST-DARCY FILTRATION THROUGH RIGID PERMEABLE MEDIA
? BIOSORPTION OF Cr(VI) FROM AQUEOUS SOLUTIONS ONTO Hydrilla verticillata WEED: EQUILIBRIUM, KINETICS AND THERMODYNAMIC STUDIES
? IMPACT OF BUILDING A TIDAL GATE ON THE YONGJIANG RIVER IN CHINA
? MONITORING OF THE HYDROTECHNICAL TORRENT CONTROL STRUCTURES: A STATISTICAL APPROACH
? RESEARCH ON SOIL PROPERTIES CONSERVATION DURING THE PREPARATION OF GERMINATION BEDS IN GREENHOUSES
? MANAGEMENT OF THE POTATO CROPS FOR MIN... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25664
Environmental Engineering and Management Journal, Vol. 10 Nr. 1
Environmental Engineering and Management Journal › Vol. 10 › Nr. 1 ? COMPACT MICROPULSE BACKSCATTER LIDAR: AIRBORNE AND GROUND-BASED APPLICATIONS
? STUDIES OF THE IMPACT OF AEROSOL OPTICAL PROPERTIES ON CLIMATE CHANGE PROCESSES
? A STUDY OF THE AEROSOL OPTICAL PROPERTIES AT TWO AERONET STATIONS FROM ROMANIA
? COMPLEMENTARY ATMOSPHERIC URBAN POLLUTION STUDIES IN THE NORTH-EAST REGION OF ROMANIA, IASI COUNTY
? ?NGSTR?M TURBIDITY IN THE LOWER LAYERS OF THE TROPOSPHERE
? LIDAR MONITORING OF ANTHROPOGENIC POLLUTION AND NATURAL PHENOMENA
... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25665
Environmental Engineering and Management Journal, Vol. 10 Nr. 2
Environmental Engineering and Management Journal › Vol. 10 › Nr. 2 ? Environmental Engineering and Management Journal, Vol. 9 Nr. 4
? THE PROTECTION OF EQUIPMENTS USING VOLATILE INHIBITORS
? CONTINUOUS SURFACE TEMPERATURE MONITORING TO ESTIMATE SENSIBLE HEAT LOSS BY BUILDING FINISHES
? RECYCLE OF POLYAMIDE DYEING WASTEWATER FOLLOWING DECOLORIZATION WITH POLYMERIC SORBENTS
? PERFORMANCE EVALUATION OF AMINO ACID SALT-BASED COMPLEX ABSORBENTS FOR CO2 CAPTURE
? ADSORPTION EQUILIBRIUM STUDIES ON COPPER (II) IONS REMOVAL BY NATURAL WASTE USIN... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25666
Environmental Engineering and Management Journal, Vol. 10 Nr. 5
Environmental Engineering and Management Journal › Vol. 10 › Nr. 5 ? HYDROGEL MICROSPHERES BASED ON ENVIRONMENTALLY FRIENDLY POLYMERS WITH POTENTIAL BIOMEDICAL APPLICATIONS
? STUDY ON THE MIXING EFFICIENCY IN A BASKET BIOREACTOR WITH IMMOBILIZED YEASTS CELLS
? MANAGEMENT OF WASTE FROM ELECTRICAL AND ELECTRONIC EQUIPMENT IN CYPRUS ? A CASE STUDY
? SEPARATION AND CHARACTERIZATION OF ANTHOCYANINS BY ANALYTICAL AND ELECTROCHEMICAL METHODS
? AN INTEGRATED DECISION AID FOR IDENTIFYING AND PRIORITIZING STRATEGIES IN FOREST MANAGEMENT
? INFLUEN... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25668
Environmental Engineering and Management Journal, Vol. 10 Nr. 3
Environmental Engineering and Management Journal › Vol. 10 › Nr. 3 ? ADSORPTION OF DYE FROM AQUEOUS SOLUTION USING SILVER WOOD SAWDUST CARBON
? TIME SERIES ANALYSIS OF THE HEAVY METALS LOADED WASTEWATERS RESULTED FROM CHROMIUM ELECTROPLATING PROCESS
? WATER QUALITY CHARACTERIZATION OF THE PRUT RIVER
? ETHICAL AND SUSTAINABLE EDUCATION OF ENVIRONMENTAL ENGINEERS - BETWEEN REALITY AND HOPE
? INTERACTIONS AMONG CLIMATE, VEGETATION AND SOILS IN RADUCANENI ? IASI AREA
? DISTRIBUTION OF MIXING INTENSITY OF OXYGEN-VECTOR DISPERSIONS IN AERATED... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25669
NUMERICAL SIMULATION OF HEAT TRANSFER IN DIRECTIONAL SOLIDIFICATION PROCESS FOR POLYCRYSTALLINE SILICON
Environmental Engineering and Management Journal › Vol. 10 › Nr. 6 Temperature distribution in the vacuum directional solidification system influenced seriously on the impurities concentration andmicrostructure in Polycrystalline Silicon. In this study, a numerical model for the transient global heat transfer for directionsolidification process has been developed by the finite element method (FEM). A two-dimension numerical simulation fortemperature distribution of directional solidification process was carried out using software Multi-physics Comsol 3.5a. Ther... Autori: Guoqiang Lv, Wenhui Ma, Hua Wang, Xiangyang Mei, Kuixian Weihttp://www.ecozone.ro/reviste.php?RID=25671
EFFECT OF THE INCYLINDER FORCED SWIRLS ON PERFORMANCE AND EMISSION OF DIESEL ENGINE
Environmental Engineering and Management Journal › Vol. 10 › Nr. 6 The combustion process plays the important role to improve performance and emission of diesel engine. To improve the rate of combustion process, the fuel-air mixing process should be accelerated. In this paper, based on the Double Swirl combustion chamber, from the macroscopic characteristics and simulation analysis, the effect of the incylinder forced swirls on performance and emission of diesel engine was studied. The results indicated that due to the incylinder forced swirls, the distribution... Autori: Chang-Yuan Wang, Fu-Shui Liu, Xiang-Rong Lihttp://www.ecozone.ro/reviste.php?RID=25673
REMOVAL OF p-XYLENE BY A DBD-TYPE PLASMA COMBINED WITH CATALYST
Environmental Engineering and Management Journal › Vol. 10 › Nr. 6 The removal efficiency of p-xylene from gas stream was experimentally investigated in a dielectric barrier discharge (DBD) reactor, which was combined with catalyst, MnO2/Al2O3 pellets, in the discharging and the afterglow area, respectively. The CO2 selectivity of the two kinds of structure was also discussed. The results showed that in both the situation, the synergetic removal efficiency of p-xylene by the DBD-catalyst hybrid system increased with increasing the discharge power and decreasing... Autori: Hongxia Liu, Yun Liuhttp://www.ecozone.ro/reviste.php?RID=25674
THE ESTABLISHMENT OF EIPs-MFA MODEL FOR THE EVALUATION OF MATERIAL METABOLISM EFFICIENCY IN INDUSTRIAL AREAS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 6 Material Flow Analysis (MFA), as a method of Industrial Ecology (IE), is a useful tool to measure and analyze the material metabolism or physical dimensions of a society’s production and consumption at various scales. However, there are different MFA frameworks and points corresponding to different researching scales. This paper proposes to introduce a physical Input- Output Table (PIOT), as means to establish the Eco-industrial parks MFA model (EIPs-MFA) and indicator systems, for analyzing t... Autori: Yao Shi, Rusong Wang, Jingru Liu, Jianxin Yang, Tianzhen Juhttp://www.ecozone.ro/reviste.php?RID=25676
BACKFILLING TECHNOLOGY OF SUBSTITUTING WASTE AND FLY ASH FOR COAL UNDERGROUND IN CHINA COAL MINING AREA
Environmental Engineering and Management Journal › Vol. 10 › Nr. 6 As one of the very few countries using coal as its dominant energy resources, China has the coal production exceeding one thirds of in the world, added to it are the problems of environmental damages and soil resource destructions result from the solid waste, such as mining waste discharged in the process of coal production and fly ash deserted from the electric power plant etc. In this paper, the mineral ingredient of waste and fly ash was tested by X-ray Diffraction. Meanwhile, the deformation... Autori: Yanli Huang, Jixiong Zhang, Qiang Zhang, Shoujiang Niehttp://www.ecozone.ro/reviste.php?RID=25677
TREND ANALYSIS OF WET DEPOSITION IN NANNING CITY DURING 1991-2004
Environmental Engineering and Management Journal › Vol. 10 › Nr. 6 The variation of acidity and the wet deposition fluxes of rainwater in Nanning City were analyzed based on the local acid rain monitoring data provided by environmental protection authorities from 1991 to 2004. The result shows that the annual value of pH is less than 5.6 in the past 14 years and the wet deposition has been getting more and more severe in Nanning. The ratio of SO42-/NO3 - has decreased. NO3 - has played an increasingly large role in acidity, though SO4 2- remains a key player. T... Autori: Feng-qin Zheng, Guo-liang Liao, Hai-hong Huang, Yu-chun Mo, Shen-xian Wuhttp://www.ecozone.ro/reviste.php?RID=25678
EFFECT OF MICROBIAL ACTIVITY IN THE RHIZOSPHERE OF WETLAND PLANTS ON REMOVAL OF TOTAL ORGANIC CARBON AND NITROGEN FROM WASTEWATER
Environmental Engineering and Management Journal › Vol. 10 › Nr. 6 Rhizobag incubation experiments were conducted to study microbial biomass carbon (MBC), microbial biomass nitrogen (MBN), soil respiration and enzyme activity (urease and phosphatase) in the rhizosphere soil of three different wetland plants and its influence on the removal of total organic carbon (TOC) and total nitrogen (TN). MBC, MBN, soil respiration and enzyme activity were higher in the rhizosphere than in the non-rhizosphere soil of the wetland plants. Microbial activity in the rhizospher... Autori: Defu Xu, Hua Fang, Xianghua Xu, Xiaoli Zhao, Yingxue Lihttp://www.ecozone.ro/reviste.php?RID=25679
SIMULATING HUMAN-INDUCED CHANGES OF WATER RESOURCES IN THE UPPER XILIAOHE RIVER BASIN, CHINA
Environmental Engineering and Management Journal › Vol. 10 › Nr. 6 Human activities can considerably change water resources of river basins. This is particularly true in Laohahe River Basin (LRB) located in upper Xiliaohe River in northern China, where intensive irrigation has resulted in almost full cessation of the water inflow, as well as the drastic drop in underground water level. The impact induced by climate change effects and human activities on stream flow changes in LRB was weighed up and distinguished by using Soil and Water Assessment Tool. Simulati... Autori: Hao Lu, Zhang Xiaoyu, Gao Jingminhttp://www.ecozone.ro/reviste.php?RID=25680
PERFORMANCE IMPACT OF LOADING RATE ON A MULTI-STAGE FILTRATION SYSTEM FOR AGRICULTURAL RUNOFF PURIFICATION
Environmental Engineering and Management Journal › Vol. 10 › Nr. 6 A multi-stage filtration system located next to Lushan River in Gaofeng Town of Chongqing, P.R. China was built to indicate the impact of loading rate on agricultural runoff purification performance. The experimental system was proved to be effective in the removal of agricultural non-point source pollutants, and it was adapted to the changes of influent quality and quantity. The average removal rate of chemical oxygen demand (COD), ammonia (NH4 +-N), total nitrogen (TN) and total phosphorus (TP... Autori: Lei Huang, Xu Gao, Wei-dan Xie, Jun-hong Chen, Xiao-xia Ma, Ming-guo Chen, Jin-song Guohttp://www.ecozone.ro/reviste.php?RID=25682
CHEMICAL CHARACTERISTICS OF INHALABLE ATMOSPHERIC AEROSOLS IN URUMQI DURING WINTER
Environmental Engineering and Management Journal › Vol. 10 › Nr. 6 PM10-2.5 and PM2.5 samples were collected from December 2007 to January 2008 at six sampling sites in Urumqi Xinjiang, China. The concentrations of seven kinds of water-soluble ions––SO4 2-, NO3-, Cl-, NH4 +, K+, Na+, and Ca2+––were analyzed using ion chromatography. The concentrations of heavy metal elements, Cr, Co, Cd, Pb, and Hg were measured using inductively coupled plasma mass spectrometry (ICP-MS). The results indicated that, in PM2.5 and PM10-2.5, the average mass concentration ... Autori: Talip Dilnur, Tursun Yalkunjan, Manabu Igawa, Yimit Abulizihttp://www.ecozone.ro/reviste.php?RID=25683
COLONIZATION AND Chlorpyrifos DEGRADATION OF STRAIN Stenotrophomonas acidaminiphila lux-β IN SOIL
Environmental Engineering and Management Journal › Vol. 10 › Nr. 6 A chlorpyrifos-degrading strain of Stenotrophomonas acidaminiphila, lux-β was chosen for research object, and the survival and chlorpyrifos-degrading activity of strain lux-β in the soil with different treatments have been investigated in this study, so as to provide technique support for monitoring the colonization and degrading activity of chlorpyrifos-degrading bacteria in natural environment. The result indicated that the quantity of lux-β in the soil rose first and decreased ... Autori: Dao-Sheng Wang, Ri-Mao Hua, Xin-Yun Tang, Rui-Xue Li, Jun Zhang, Yun-Lu Wanghttp://www.ecozone.ro/reviste.php?RID=25684
PYRITE SURFACE CORROSION ENHANCED BY ATTACHMENT OF Acidithiobacillus ferrooxidans: COMPARISON WITH ABIOTIC OXIDATION
Environmental Engineering and Management Journal › Vol. 10 › Nr. 6 Acidithiobacillus ferrooxidans plays an important role in the pyrite oxidation process and has been widely studied in order to determine the kinetics of the reactions, but the details of the oxidation processes on the surface of pyrite keeps poorly known. In this study, the bio-oxidation process of pyrite by Acidithiobacillus ferrooxidans was studied by comparing with abiotic oxidation by Fe3+. The attachment of Acidithiobacillus ferrooxidans on pyrite surface was found by using Scanning Electro... Autori: Lei Jiang, Huiqun Yang, Yuruo Tao, Jinyan Yanghttp://www.ecozone.ro/reviste.php?RID=25686
AN APPRAISAL OF TWO TRACER METHODS FOR ESTIMATING TILLAGE EROSION RATES UNDER HOEING TILLAGE
Environmental Engineering and Management Journal › Vol. 10 › Nr. 6 An increasing recognition of tillage erosion processes has shown that soil redistribution by tillage directly contributes to soil loss in mechanically and nonmechanically agricultural areas worldwide. Soil translocation by tillage is normally measured by means of tracers, with which a volume of soil is labeled, and therefore yielding tillage erosion rates in a field. Two tracer methods for estimating tillage erosion rates were appraised to understand the adaptability to local conditions in the h... Autori: Jianhui Zhang, Fucheng Lihttp://www.ecozone.ro/reviste.php?RID=25687
SIMULATION OF DENOX MASS BALANCE BASED ON VISUAL COMPONENT LIBRARY (VCL)
Environmental Engineering and Management Journal › Vol. 10 › Nr. 6 Mass and energy balance calculation is the premise and key of the SCR (Selective Catalyst Reduction) DeNOx system design. However, the traditional calculation method is too complicated. In this paper, the author designed E-R data model for DeNOx system, simulated mass and energy transfer process, and developed visual calculation software based on VCL (visual component library) after studying the principle of SCR and data structure of DeNOx system. Comparing the ammonia demand and flue gas volume... Autori: Yungui Du, Qirong Wu, Xiu Yang, Yu Yuhttp://www.ecozone.ro/reviste.php?RID=25688
CO2 REDUCTION BY CLATHRATE HYDRATE CRYSTALLIZATION
Environmental Engineering and Management Journal › Vol. 10 › Nr. 6 It is a promising way for CO2 capture and sequestration by hydrates crystallization. In this study, the characteristics of CO2 hydrate formation are investigated in a small scale dynamic reactor under pressure conditions from 2.0-3.5 MPa and temperature varied between 0.5-4.0Â?C. The effects of supercooling degree and pressure on hydrates formation were discussed. Hydrates formation can be completely finished within 150 min and the final pressure-temperature points of system are just located on ... Autori: Ni Liu, Xiaobo Xuan, Daoping Liu, Yingming Xiehttp://www.ecozone.ro/reviste.php?RID=25689
CORRELATION OF MICROCYSTINS AND WATER ENVIRONMENT FACTORS IN MIYUN RESERVOIR OF BEIJING, CHINA
Environmental Engineering and Management Journal › Vol. 10 › Nr. 6 Our investigation in 2007 revealed that the concentration of microcystin (MC-LR) in Miyun reservoir was 0.224 μg L-1, below the safety limit of surface drinking water in China (1.0 μg L-1). The phytoplankton community in Miyun reservoir was composed of 8 divisions and 84 species (including genera and varieties). The density of phytoplangkton was 393.71?—104 cells L-1 including 24.6% of Chlorophyta, 32.5% of Cyanophyta and 15.3% of Bacillariophyta. The toxin-producing cyanobacteria incl... Autori: Huimin Li, Guisen Du, Yumei Wu, Dianwei Wu, Jingshi Wanghttp://www.ecozone.ro/reviste.php?RID=25691
EXERGY ANALYSIS OF HYDROGEN PRODUCTION VIA BIOMASS STEAM GASIFICATION AND PARTIAL OXIDATION
Environmental Engineering and Management Journal › Vol. 10 › Nr. 7 Hydrogen production via biomass steam gasification and partial oxidation is analyzed from exergy aspect. Based on cypress sawdust gasified from 800°C to 1200°C, the exergy value of H2 from steam gasification rises from 1410.80 kJ kg-1 to 7922.89 kJ kg-1, while that from partial oxidation increases from 988.30 kJ kg-1 to 3097.81 kJ kg-1. The exergy efficiency of H2 from biomass also increases for both steam gasification (6.42–36.08%) and partial oxidation (4.50–14.11%). However, the exergy ... Autori: Yaning Zhang, Bingxi Li, Hongtao Li, Bo Zhang, Hui Liuhttp://www.ecozone.ro/reviste.php?RID=25693
ADSORPTION OF Cr(VI) ON Fe-Ni MODIFIED BENTONITES
Environmental Engineering and Management Journal › Vol. 10 › Nr. 7 A series of sodium bentonites as raw material were prepared to the modified inorganic iron-nickel montmorillonites and organic composite montmorillonites. The structural characterization and morphology of the iron-nickel crosslinked modified bentonites were observed by means of IR spectroscopy, X-ray diffraction, scanning electron microscopy. The effects of the amount of bentonites, adsorption time and pH change on the adsorption of Cr(VI) have also been studied. The results indicated that the a... Autori: Shao Hong, Cao Ninghttp://www.ecozone.ro/reviste.php?RID=25695
SCREENING AND BIOLOGICAL CHARACTERISTICS OF A MANGANESE TOLERANT MICROORGANISM
Environmental Engineering and Management Journal › Vol. 10 › Nr. 7 Ecological adaptation of heavy metal polluted environments is significantly enhanced through plants inoculated with plant growth-promoting bacteria (PGPB), and the cost of phytostabilization in metal tailings can be reduced. On the basis of the systematic investigation of manganese tolerant plants which grew on Xiangtan manganese tailings, rhizosphere soils of th Chenopodium album Linn. were collected. One yellow manganese-resistant strain named XZL01 was isolated from the rhizosphere of fresh p... Autori: Shengguo Xue, Yameng Ma, Xiaohua Zhou, Xiyan Zhou, Fenghao Liuhttp://www.ecozone.ro/reviste.php?RID=25696
PREPARATION AND CHARACTERIZATION OF CALCIUM ZINCATE SYNTHESIZED BY MICROWAVE METHOD
Environmental Engineering and Management Journal › Vol. 10 › Nr. 7 Calcium zincate as an active material in Zn/Ni secondary battery has been successfully synthesized by microwave method. The sample was characterized by X-ray diffraction (XRD), thermogravimetric analysis, scanning electron microscope (SEM), chargedischarge test (CT) and cyclic voltammetry (CV) analysis. The results show that the chemical composition of sample is Ca(OH)2·2Zn(OH)2·2H2O with regular spherical shapes. The results from CV and CT measurement indicate that the battery has very high d... Autori: Mengliang Tong, Xuanyan Liuhttp://www.ecozone.ro/reviste.php?RID=25700
FORCED SWIRL COMBUSTION CHAMBER IN DIESEL ENGINE: NUMERICAL SIMULATION AND EXPERIMENTAL RESEARCH
Environmental Engineering and Management Journal › Vol. 10 › Nr. 7 Fuel injection system, intake system and the geometric shape of combustion chamber are the three key factors to the fuel-air mixture and combustion process for diesel engine. long with the need of high power density in diesel engine, the pressure of intake is higher increasingly. Together with the effect of high pressure fuel injection, the fuel-air mixture and combustion process is hard to spread as usual. In this circumstance, the performance of power, heat efficiency and emission in diesel en... Autori: Shang Yong, Liu Fu-Shui, Li Xiang-Ronghttp://www.ecozone.ro/reviste.php?RID=25704
DEVELOPMENT OF MUNICIPAL SOLID WASTE MANAGEMENT PRACTICES IN DIFFERENT GEOGRAPHICAL UNITS AND URBAN SYSTEMS IN CHINA
Environmental Engineering and Management Journal › Vol. 10 › Nr. 7 On the basis of spot investigation of dozens of cities and hundreds of towns and villages in different regions in China, combining with the fundamental methods of municipal solid waste management (MSWM), three development modes of MSWM were proposed according to the land area, economic level, nature condition and population distribution of various geographical units and urban systems. They were respectively for the city/district system, the city/town (district)/village system and the city/ count... Autori: Haibin Chen, Li Zhang, Jingcheng Zhou, Yang Huhttp://www.ecozone.ro/reviste.php?RID=25707
SEPARATION OF POLLUTANTS FROM WATER USING THE FREEZE - CONCENTRATION PROCESS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 7 In this study, the application of freeze-concentration method to treat low-concentration polluted water was demonstrated. The effects of stirring, the temperature in a freezing cabinet and the volume of water involved in the freeze-concentration treatment of pollutants were investigated under laboratory conditions. The removal of pollutant by freeze-concentration treatment was also attempted. Results had shown that the ratio of pollutants removed was about 83% when the experiment was carried out... Autori: Yingjie Dai, Ying Zhang, Baiyin Liu, Masahiro Teduka, Yongbo Lin, Shunitz Tanakahttp://www.ecozone.ro/reviste.php?RID=25709
QUANTIFYING THE BENEFICIAL EFFECT OF DIFFERENT PLANT SPECIES ON AIR QUALITY IMPROVEMENT
Environmental Engineering and Management Journal › Vol. 10 › Nr. 7 The beneficial effect of urban plants in improving air quality is often mentioned in literature but is seldom quantified and valuated. Quantification and valuation of the benefits provided by urban plants allow direct comparison between plant species and help make more informed urban planning decisions. Based on fieldwork study and data processing, carbon dioxide (CO2) sequestration, oxygen (O2) generation, transpiration cooling, sulfur dioxide (SO2) removal and dust interception are quantified ... Autori: Qijiao Xie, Zhixiang Zhou, Fang Chenhttp://www.ecozone.ro/reviste.php?RID=25710
EVALUATION OF THE TRAFFIC AIR QUALITY BASED ON FUZZY COMPLEX MATTER ELEMENT METHOD AND ENTROPY WEIGHT
Environmental Engineering and Management Journal › Vol. 10 › Nr. 7 For a better evaluation of the impact of road traffic about air quality, this paper considers the development of a new evaluation index system and methods. They address the assessment of the air quality around the areas with an intense road traffic, according to Chinese standards considering sulfur dioxide index (SO2), total suspended particles index (TSP), floating dust index (PM10), nitrogen oxides index (NOX) and carbon monoxide index (CO). A systematic air quality evaluation model was establ... Autori: Zhao-hui Liu, Zhi-bin Qinhttp://www.ecozone.ro/reviste.php?RID=25714
EVALUATION AND APPLICATION OF SEMI-DRY FUEL GAS DESULFURIZATION (FGD) WITH FABRIC FILTER
Environmental Engineering and Management Journal › Vol. 10 › Nr. 7 Semi-dry FGD with fabric filter has been extensively studied in recent years. After a series of industrial tests on 300MW boiler with semi-dry FGD and fabric filter, some operation notes were obtained. The test results show that CFB-FGD with fabric filter can be run longer and stable, and its actual performance is even higher than the design parameters. Moreover, the pressure drop of fabric filter after CFB-FGD is 600~800Pa (higher than normal). The fabric filter, which contributes to the desulf... Autori: Tong Li, Han Yi, Han Xu, Reti Hai, Wang Wenxinghttp://www.ecozone.ro/reviste.php?RID=25716
HORIZONTAL AXIS WIND MICROTURBINES WITH POWER OF 10 KW
Environmental Engineering and Management Journal › Vol. 10 › Nr. 8 Abstract:Under the circumstances of the deficit in total energetic resources of the Republic of Moldova, non-traditional sources as wind,solar and hydraulic energies are very opportune. Concurrently with the conventional energy resources (fossil fuels, atomic energyetc.), wind energy begins to regain its positions not only from ecological, but also from economical point of view. Also, the windenergy conversion systems could play a significant role in the production of mechanical, electrical ener... Autori: Anatol Sochireanu, Ciupercă Rodion, Ion Bodnariuc, Ion Bostan, Ion Dicusară, Ion Sobor, Iulian Malcoci, Marin Guţu, Nicolae Trifan, Oleg Ciobanu, Radu Ciobanu, Radu Crudu, Valeriu Dulgheru, Viorel Bostan, Vitalie Gladîş ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25717
PHOTODEGRADATION PROCESSES FOR ADVANCED TREATMENT OF INDUSTRIAL WASTEWATERS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 8 Abstract:The textile industry uses high quantities of water which in many cases are disposed to the environment with inadequate treatment.In this work the effluents from the polyamide textile industry containing Bemacid Gelb, Bemacid Rot and Bemacid Blau weretreated by heterogeneous photodegradation. Treatment performances have been evaluated in terms of conductivity, turbidity, totaldissolved solids (TSD), chemical oxygen demand (COD), total organic carbon (TOC), biochemical oxygen demand (BOD5... Autori: Luminita Andronic ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25720
PREDICTION OF TiO2 AND WO3 NANOPOWDERS SURFACE CHARGE BY THE EVALUATION OF POINT OF ZERO CHARGE (PZC)
Environmental Engineering and Management Journal › Vol. 10 › Nr. 8 Abstract:Point of zero charge (PZC) is defined as the condition at which the surface charge density of a material equals to zero and, formost of the solids it is strongly pH dependent. The PZC can be controlled by tuning the solid surface properties (crystallinestructure, morphology) and by a proper environment control, thus it is important to evaluate the PZC for a certain type of material,in given working conditions, for enhancing the efficiency in the targeted application (e.g. layer by layer... Autori: Laura Maria Bertus, Radu Adrian Carcel ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25721
DEVELOPMENT, MANUFACTURING AND TESTING VERTICAL AXIS WIND TURBINES WITH HELICAL BLADES
Environmental Engineering and Management Journal › Vol. 10 › Nr. 8 Abstract:Under the circumstances of the total energetic recourses deficit in the Republic of Moldova appears the problem of non-traditionalsources utilization. An important source of renewable energy is the wind energy. This paper deals with two new concepts ofvertical axis wind turbine (VAWT) with helical blades, elaborated by the authors.The main element of the wind turbine is, certainly, the rotor. It is directly subdued to the action of the air flow and transforms thekinetic energy of the ai... Autori: Ion Bostan, Ion Vişa, Rodion Ciupercă, Valeriu Dulgheru ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25722
A MICRO-HYDROPOWER STATION FOR THE CONVERSION OF FLOWING WATER KINETIC ENERGY
Environmental Engineering and Management Journal › Vol. 10 › Nr. 8 Abstract:An efficient conversion of kinetic energy of river waters into mechanical or electrical energy without building barrages isprovided by micro-hydropower stations. Increased efficiency is achieved by an optimum position of the blades withhydrodynamic profile. The formulation used to compute the hydrodynamic forces is an inviscid - boundary layer model. Microhydropowerstation provides kinetic energy conversion of river water into mechanical or electrical energy without buildingbarrages. In... Autori: Anatol Sochireanu, Ion Bostan, Ion Dicusară, Nicolae Trifan, Oleg Ciobanu, Radu Ciobanu, Valeriu Dulgheru, Viorel Bostan ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25723
CHALLENGES FOR BIO-BASED PRODUCTS IN SUSTAINABLE VALUE CHAINS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 8 Abstract:This work concerns studies related to strategic development of products in which bio-based plastics are or will be applied, referredto as bio-based products. The studies cover (1) current and potential benefits of bio-based products in extended value chainsincluding activities after end-of-life of products, (2) value communication between stakeholders in extended value chains, and (3)creating an integrated development approach for optimized bio-based products. Most existing models for v... Autori: J.W. Lin, Jarmila Kopecká, Kim Ragaert, Ludwig Cardon, Maarten De Groote, Rolf Koster ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25728
DETERMINATION OF AROMATIC VOLATILE COMPOUNDS IN PETROCHEMICAL WASTEWATER
Environmental Engineering and Management Journal › Vol. 10 › Nr. 8 Abstract:A method based on headspace and capillary gas chromatography with flame ionization detector technique was validated for thesimultaneous determination of five individual aromatic volatile pollutants: benzene, toluene, ethylbenzene, m/p-xylene and oxylene.The validation took in consideration liniarity, accuracy, precision, limit of detection, limit of quantification anduncertainty estimation criteria and concluded that the proposed method is suitable to determine the pollutants of interes... Autori: Camelia Draghici, Elena Paunescu, Elisabeta Chirilă, Gabriela Stanciu, Simona Dobrinas ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25729
DESIGN OF THE SUSTAINABLE URBAN VEHICLES - NEW CONCEPTS FOR PHOTOVOLTAIC INTEGRATED SOLUTIONS IN AUTOMOTIVE
Environmental Engineering and Management Journal › Vol. 10 › Nr. 8 Abstract:The demand for new and high performance products in the automotive industry is increasing exponentially and this trend imposesinnovative concepts for cars. The future solutions for the automotive industry may find their answer in the fabricationtechnologies and also in alternative propulsion and energy production.The car design field cannot ignore the global economic crisis, imposing new approaches in terms of materials and cost effectivetechnologies and by the means of environmental pr... Autori: Mihai Comşiţ ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25733
TECHNOLOGICAL POTENTIAL OF REED AS BIOMASS FOR BRIQUETTING
Environmental Engineering and Management Journal › Vol. 10 › Nr. 8 Abstract:In this paper the study on the possibilities of converting chopped reed stalk biomass into briquettes is described, in the conditions of harvesting water reed plant from Danube Delta region in winter time and based on briquetting technology used for wood waste from production. The water reed tested in the research has been harvested from Tulcea reed bed, one of the largest in Romania, chopped in a veneer drum chipper and compacted into the hydraulic briquette machine. The paper focuses ... Autori: Aurel Lunguleasa, Camelia Coşereanu, Constantin - Radu Gheorghiu, Dumitru Lica, Gavril Budău ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25734
4-BAR GEARED LINKAGE USED FOR PHOTOVOLTAIC AZIMUTH ORIENTATION
Environmental Engineering and Management Journal › Vol. 10 › Nr. 8 Abstract:In order to capture as much solar energy as possible, the photovoltaic converter has to follow the sun movement during a day; thiscan be achieved by a tracking system. Most tracking systems have complex and costly structures that can provide wide anglevariations. This paper presents a geared linkage that is build up by a planetary system of gears fitted on a linkage, and thus helpsin reaching wide angles. Starting from a patented linkage, which reaches ≈200° angular strokes, by a... Autori: Dorin Diaconescu, Ioana Hermenean, Nora Creanga ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25736
ECOLOGIC MODIFICATION OF WOOD USING ALKYLIMIDAZOLIUM-BASED IONIC LIQUIDS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 8 Abstract:In this paper, the influence of two types of imidazolium-based ionic liquids (ILs) on the properties of sycamore maple (Acer pseudoplatanus) veneers, at 25 0C, 60 0C and 80 0C has been studied by using contact angle measurements and Fourier transform infrared spectroscopy analysis. The measurements showed that wood wettabillity is increased by IL treatment. It has been determined that the ILs decrease the crystallinity and improve the flexibility of the cellulose matrix. Also, it has be... Autori: Attila Porzsolt, Catalin Croitoru, Christian Friedrich, Silvia Patachia ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25737
SYSTEM IDENTIFICATION TOOLS FOR THE STABILIZATION OF THE WASTE-BED TEMPERATURE WITHIN A WASTE-TO-ENERGY PLANT
Environmental Engineering and Management Journal › Vol. 10 › Nr. 8 Abstract:Incineration plants are used since the beginning of the twentieth century to transform the mixed municipal waste into thermalenergy and to convert the hazardous components of waste into harmless compounds. To minimize the environmental pollutionand maximize the energy efficiency of the produced energy, the control of the complex processes that occur into the waste toenergy conversion is of major importance. In this work, the system identification approach is used to determine the dynami... Autori: Adrian Danila ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25739
MOTION LAW OF A PSEUDO-EQUATORIAL SOLAR THERMAL COLLECTOR FOR SPECIAL WORKING REQUIREMENTS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 8 Abstract:A comparative analysis is drawn on the energetic responses numerically simulated for Brasov, Romania location, delivered bytwo mono-axial pseudo-equatorial STCs (solar thermal collectors): a flat plate STC and a STC with heat pipes; the two systemsare destined for future implementation on Transilvania University Campus. Accordingly, two tracking programs are consideredfor the diurnal motion: a) of 1h constant duration steps, for school courses interval (September-June) and b) 1-step pro... Autori: Maria M. Vatasescu, Veronica E. Dombi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25740
REUSE OF PET WASTE AS THERMOPLASTIC COMPOSITES
Environmental Engineering and Management Journal › Vol. 10 › Nr. 8 Abstract:Composite manufacturing from plastic wastes of polyethylene terephthalate (PET) type, sand-blasting represents a materialrecovery of the wastes. This process can be achieved, with the purpose of reducing the material consumption which is in deficit,production costs, and the duration of the technological processes.Thermoplastics composites obtained by a melting process at 170-200 oC, wastes incorporation and solidification in forms replacesuccessfully the thermo rigid composites obtained... Autori: Ioan Ropotă, Marcela Muntean, Mihai Bratu, Ovidiu Dumitrescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25741
INFLUENCE OF PRECURSOR COMPOSITION ON OPTOELECTRIC AND PHOTOCATALYTIC PROPERTIES OF TIO2 AND WO3 FILMS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 8 Abstract:The paper presents the influence of different WO3:TiO2 ratios on the photocatalytic and photoelectrolytic properties of the films.The investigations are focused on the morphological (Atomic Force Microscopy, Contact angle), compositional (X-raydiffraction), optoelectric (conductivity, photocurrent) and photocatalytic properties of titanium dioxide films mixed with tungstenoxide. The most important application of these layers is in wastewater purification and hydrogen production using ap... Autori: Alexandru Enesca ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25743
APPLICATION OF SOLAR DRYING TECHNOLOGIES FOR BIOLOGICAL PRODUCTS CONSERVATION
Environmental Engineering and Management Journal › Vol. 10 › Nr. 8 Abstract:The drying of biological materials plays an important role in influencing energy savings, quality of end-products and alsoenvironmental issues. Several new approaches in application of solar dryers and a great number of biological materials have beendeveloped. In the paper the background of solar drying, current solar drying arrangements, and some of the recently focusedbiological products such as grain, fruit, vegetable etc. are selected and discussed. Additionally an integrated energy... Autori: Istvan Farkas ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25745
STEP-TRACKING PROGRAM SYNTHESIS OF AN AZIMUTH TRACKED CONCENTRATING PHOTOVOLTAIC (CPV) SYSTEM
Environmental Engineering and Management Journal › Vol. 10 › Nr. 9 Abstract:For the optimal working of the concentrating photovoltaic systems (CPV), these are usually tracked, and the accuracy required infollowing the sun path is much higher than in non-concentrating system. The paper focuses on the synthesis of the optimal steptracking program of an azimuth tracking system, used for accurate tracking of a CPV system. The paper presents the synthesismodelling algorithm and the numerical simulations for a CPV system, orientated with an azimuth tracking system, i... Autori: Ioana Sinziana Hermenean, Ion Visa ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25748
REMOVAL OF METHYL ORANGE AND METHYLENE BLUE DYES FROM WASTEWATER USING SAWDUST AND SAWDUST-FLY ASH AS SORBENTS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 9 Abstract:Methyl orange and methylen blue are two dyes resulted from the textile industry. They are not raising just esthetical problems, butthey are toxic and hence harmful to aquatic animals. The aim of this study is to test the capacity of three types of sawdust (oak,willow and white poplar) and mixed substrates, sawdust: fly ash (FA), to remove the methyl orange (MO) and methylen blue(MB) from wastewater. The influence of contact time, solution pH and initial concentration of dyes on the blea... Autori: Anca Duta, Dora Lucaci ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25752
HYDROTHERMAL SYNTHESIZED TiO2 BASED NANOPOWDERS FOR PHOTOCATALYTIC APPLICATIONS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 9 Abstract:Hydrothermal synthesis was used to obtain nanostructured TiO2 based nanopowders. There were prepared pure and ZrO2 dopedcompositions consisting mainly of anatase phase with crystallite size up to 20 nm. The agglomerates of the as-synthesizedmaterials had dimensions ranging from a few hundreds nanometers to 200 microns. The investigations concerning the thermalbehavior revealed the presence of an exothermal effect at around 550oC which could indicate a possible phase transformation ofana... Autori: Adrian Mihail Motoc, Anca Duta, Oana Raita, Radu Adrian Carcel, Radu Robert Piticescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25758
HYDROPOWER DEVELOPMENT - COMPLEXITY AND RISKS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 9 Abstract:Hydropower exploitation has become a multifaceted task due to continuously increasing interest in all parts of the world but alsodue to inhomogeneity of framework conditions in the social, the political, the regulatory and the economic view. The final successof a plant is not only ensured by a good technical concept or design but additionally by a suitably model of financing, by selectingthe most reliable partners, by evaluating the environmental restrictions or the political stability ... Autori: Bernhard Pelikan ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25761
PARAMETERS EFFECT ON THE PRODUCT DISTRIBUTION IN THE BIOMASS TO FISCHER-TROPSCH FUELS PROCESS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 9 Abstract:The increasing of energy consumption and fossil fuel emissions (especially CO2, SO2 and NOx) and the limitation of crude oilreserves, determined a growing trend toward renewable energy technologies, like solar, wind, geo-thermal energy and biomass forbiofuels.From all the renewable energies sources, biomass attracts more and more interest being a renewable resource with economicpotential, which can be found all over the world, with positive environmental properties due to neutral emissi... Autori: Anca Sauciuc, Angela Potetz, Georg Schlaub, Gerald Weber, Hermann Hofbauer, Lucia Dumitrescu, Reinhard Rauch, Ziad Abosteif ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25762
THERMODYNAMIC DESIGN AND OPTIMIZATION OF A SOLAR-DISH POWERED STIRLING ENGINE
Environmental Engineering and Management Journal › Vol. 10 › Nr. 9 Abstract:A thermodynamic model for accurately predicting the overall efficiency and power output of a solar assembly using a Stirlingengine is presented. It is based on the application of the First Law of Thermodynamics for Processes with Finite Speed and usesthe Direct Method. The proposed model could also be used to better design receivers that concentrate the solar radiation and toproperly size the receiver cavity for a dish solar concentrator. Examples of the optimization of the performance ... Autori: Alexandru Dobrovicescu, Camelia Stanciu, Dorin Stanciu, Georgiana Tirca-Dragomirescu, Monica Costea, Stoian Petrescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25763
EXERGY ANALYSIS OF A SOLAR STIRLING ENGINE ASSEMBLY
Environmental Engineering and Management Journal › Vol. 10 › Nr. 9 Abstract:A thermodynamic model for studying the overall efficiency and power output of a solar assembly using a Stirling engine ispresented. It is based on the application of the energy and exergy balance equations to the system components. The results of theproposed model are generated as a function of solar incident radiation whose analytical estimation is presented. The numericalapplication is set for a solar assembly operating in Bucharest, composed by a parabolic dish mirror, a plane receiv... Autori: Adina Gheorghian, Alexandru Dobrovicescu, Camelia Stanciu, Dorin Stanciu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25764
MONITORING OF A PERFORMANCE-ORIENTED POLICY MODEL FOR RETROFITTING �PANEL BUILDINGS�
Environmental Engineering and Management Journal › Vol. 10 › Nr. 9 Abstract:The state support programs on retrofitting buildings built with prefabricated technology has a decade-long history in Hungary.The launch of the Green Investment Scheme (GIS) in 2009 has introduced a new path: the performance-oriented approach. Thenew model is designed for implementing more complex renovations on a deeper level. The system is in accordance with theEPBD (EPBD, 2002) and exact savings must be quantified for all projects. The present paper outlines the past and the present ... Autori: Attila Talamon, Tamás Csoknyai ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25765
DESIGN AND SIMULATION OF A PHOTOVOLTAIC STRING WITH TRACKING MECHANISM
Environmental Engineering and Management Journal › Vol. 10 › Nr. 9 Abstract:The paper presents a method to improve the efficiency of a photovoltaic (PV) string by employing a mono-axis trackingmechanism. The tracking system was optimized so that it has minimum energy consumption during tracking. The PV stringsimultaneously changes the daily position using a linear actuator which transmits the motion to all modules by a rack-pinion gearmechanism. The system is designed in virtual prototyping concept with the following software solutions: for the solid modeling -... Autori: Cătălin Alexandru, Nicoleta-Irina Tatu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25766
CALCULATION SCHEME OF A THERMODYNAMICAL TIME DEPENDENT MODEL OF THE HEAT REGENERATION PROCESS IN A SOLAR STIRLING ENGINE
Environmental Engineering and Management Journal › Vol. 10 › Nr. 9 Abstract:The aim of this paper is to propose a set of thermal models for the regenerator by taking into account the time dependent heattransfer processes, and to combine them with the thermodynamic lumped description of the solar Stirling engine, accordingly torecent description.By using analytical and numerical methods, the optimum power of the engine is sought when various constrains (or not) areconsidered, particularly fixed heat transfer rate available at the source.A sensitivity analysis of... Autori: Alexandru Dobrovicescu, Andreea Marin, Catalina Dobre, Georgiana Tirca-Dragomirescu, Michel Feidt, Monica Costea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25767
RAPID MANUFACTURING BY POLYJET TECHNOLOGY OF CUSTOMIZED TURBINES FOR RENEWABLE ENERGY GENERATION
Environmental Engineering and Management Journal › Vol. 10 › Nr. 9 Abstract:In Romania, the small hydro power scheme (mini-, micro- and pico- hydro power) represents a potential renewable energy sourcefor electrical energy. Nevertheless, this small hydro potential must be used efficiently. The paper proposes an innovative e-methodof integrating design with manufacturing, for a small Pelton turbine. The first part presents the application of Rapid ProductDevelopment (RPD) with focus on Product Design (PD) of a new, very small customized hydropower turbine. This ... Autori: Anisor Nedelcu, Bogdan Deaky, Razvan Udroiu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25769
CLEAN ENERGY RESPONSE OF PV SYSTEMS WITH AZIMUTH AND PSEUDO-EQUATORIAL TRACKING
Environmental Engineering and Management Journal › Vol. 10 › Nr. 9 Abstract:The present study proposes a comparative analysis on the clean electric energy response given by two types of PV (photovoltaic)tracking systems implemented on the same location: the azimuth and the pseudo-equatorial. The analysis is done based on analgorithm applied on the two-axes and one-axis systems. The tracking is done according to various laws, obtained by combiningdaily, seasonal and annual tracking programs. The algorithm and the comparative analysis are exemplified, by numerica... Autori: Dorin Diaconescu, Maria Monica Vatasescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25770
STUDIES ON ADSORPTION AND BIODEGRADATION OF CHROMIUMCONTAINING WASTEWATER BY LABORATORY-SCALE SEQUENCING BATCH REACTOR-POWDERED ACTIVATED CARBON SYSTEM
Environmental Engineering and Management Journal › Vol. 10 › Nr. 10 Abstract:The study involved investigating the effects of Cr(III) and the efficacy of powdered activated carbon (PAC) in reducing theinhibitory effects of Cr(III) on activated sludge under sequencing batch reactor (SBR) operation. The addition of Cr(III) into SBRsystem caused significant inhibitory effects on the activity of activated sludge as indicated by drastic drop in specific oxygenuptake rate (SOUR). The increase of Cr(III) concentration from 5 to 10 mg/L further deteriorated the treatment... Autori: Eiichi Toorisaka, Makoto Hirata, Soon-An Ong, Tadashi Hano ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25773
METALLIC MEMBRANES OBTAINED WITH GRADED STRUCTURE FOR MICROFILTRATION
Environmental Engineering and Management Journal › Vol. 10 › Nr. 10 Abstract:The aim of this work is to obtain sintered porous membranes with graded structure for microfiltration by sedimentation andsintering of metallic powders. Our previous studies have demonstrated the possibility of obtaining sintered porous materials withgraded structure by sedimentation. In this paper, spherical nickel particles were used having a grain size in the 2-90 µm rangemeasured by the laser scattering particle size analyzer. The powders were sedimented into a sintering die in a s... Autori: Gyorgy Thalmaier, Ioan Vida-Simiti, Nicolaie Jumate, Niculina Sechel, Valentin Moldovan ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25775
OPTIMIZATION OF PHOTO-CATALYTIC PROCESS BY TiO2 NANO POWDER IMMOBILIZED ON CONCRETE SURFACE FOR TREATMENT OF PHENOLIC WASTEWATER
Environmental Engineering and Management Journal › Vol. 10 › Nr. 10 Abstract:In this paper, photo-catalytic process for treatment of phenolic wastewater by TiO2 nano powder immobilized on concrete surfacein a recirculation hydraulic flow was investigated. The process affected by different operational conditions that the optimum onescould be obtained from variables interchange. Taguchi method as a proper method for design of experiments and optimizationwas used to find optimum conditions. Selected five parameters at four levels were consists of initial phenol con... Autori: Bita Ayati, Hossein Ganjidoust, Mohammad Delnavaz, Sohrab Sanjabi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25778
NUMERICAL INVESTIGATION ON CONVECTIVE HEAT TRANSFER IN HIGH TEMPERATURE SOLAR RECEIVER
Environmental Engineering and Management Journal › Vol. 10 › Nr. 10 Abnstract:In recent years, solar receivers have been employed in several applications where high temperature fluids are involved, such aspower plants and solar thermal reactor. The possible presence of high temperature gradients could determine reduced receiverefficiency and a short life of the material. Thermal and fluid dynamic analysis of the receiver allows to highlight possible presenceof temperature gradients and to evaluate their values and the more critical zone of the material. Compress... Autori: Alina Adriana Minea, Oronzio Manca, Salvatore Tamburrino, Sergio Nardini ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25779
FUZZY SYNTHETIC EVALUATION OF WEIHE WATER QUALITY
Environmental Engineering and Management Journal › Vol. 10 › Nr. 10 Abstract:Based on the fuzzy logic principle, a modified Fuzzy Synthetic Evaluation (FSE) is proposed to assess water quality status ofWeihe River (Baoji, China). The potential application of the FSE has been tested in a case study. Twelve sampling locations ofWeihe River and its tributaries in Baoji area were selected and seven water quality parameters of BOD5, COD, fluoride, ammonia,total phosphorus (TP), total nitrogen (TN) and permanganate index, were monitored from 2008 to 2009. The findings... Autori: Chundi Xu, Jun Zhang, Qi Zhou, Yani Geng, Yaqian Zhao ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25780
CONTRIBUTIONS TO THE IMPROVEMENT OF POLLUTION CONTROL IN LAKES AND AN APPLICATION FOR THE GOVORA LAKE
Environmental Engineering and Management Journal › Vol. 10 › Nr. 10 Abstract:In this paper, the mathematical model is improved by considering the density variations of the liquid from the pollution source vs.pollutant’s concentration of this liquid and by including the sorption-desorption term (SDT), which takes into account thisphysical process, played by a first-order decay model defined by two coefficients and an exponent. In order to practically use thisimproved mathematical model, the authors inferred the calculating relationships from automatic processin... Autori: Daniel Bucur, Esmeralda Chiorescu, Gheorghe Ţigaret ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25783
THE ASSESSMENT OF THE IMPACT ON THE ENVIRONMENT OF THE LIMESTONE QUARRIES USING SATELLITE IMAGES
Environmental Engineering and Management Journal › Vol. 10 › Nr. 10 Abstract:Surface exploitations in the limestone quarries have a major impact on the environment both by area and intensity. The valuationof the impact can be carried out through different means, one of them being the satellite remote sensing. In this article we analyzethe effects that limestone exploitations in the outskirts of BraÂ?ov city have on the landscape, using RGB combination, vegetationindices and spectrum profiles. A series of Landsat 5 TM satellite images taken in 1984, 1989 and 2009... Autori: Iosif Vorovencii ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25784
DEGRADATION OF METHYL ORANGE MEDIATED BY CuO-DOPED ZnO PHOTOCATALYSTS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 10 Abstact:0.5 - 2.0% CuO-doped ZnO (CuO-ZnO) photocatalysts were prepared with a simple mixing method where the oxides wereinitially synthesized through precipitation. The physico-chemical properties of CuO-doped ZnO photocatalysts were studied viaXRD, TEM, XRF and BET method and their photoactivity was evaluated by degrading methyl orange (MO) dye. The propertiesof ZnO were not affected by the addition of CuO except for the particle size of the photocatalyst, which increased proportionallywith Cu... Autori: Abdul Halim Abdullah, Md. Jelas Haron, Nor Zafirah Razali ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25785
EXTENSION OF ACTIVATED SLUDGE MODEL NO 1 WITH TWO-STEP NITRIFICATION AND DENITRIFICATION PROCESSES FOR OPERATION IMPROVEMENT
Environmental Engineering and Management Journal › Vol. 10 › Nr. 10 Abstract:The present paper presents an enhanced Activated Sludge Model No. 1 in which nitrification and denitrification are modelled astwo-step processes. The nitrification process is considered as a sequence of two steps carried out by two distinct genera ofbacteria, with nitrite as an intermediate product. For the denitrification process a parallel approach was used that considers nitrateand nitrite to be directly reduced to molecular nitrogen. The new model is compared to the original Activat... Autori: George Simion Ostace, Paul Şerban Agachi, Vasile Mircea Cristea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25786
INCREASED SECURITY OPERATION OF NUCLEAR FACILITIES BY USING REFRIGERATION SYSTEMS WITH ENVIRONMENTALLY FRIENDLY FREON
Environmental Engineering and Management Journal › Vol. 10 › Nr. 10 Abstract:One of the basic conditions for the operation of nuclear installations is security operation. The complexity of the phenomena inheavy water detritiation plants, determine the use of advanced equipment for technological processes involved. Pilot Plant forTritium and Deuterium Separation developed the cryogenic technology of tritium separation from tritiated heavy water. Theprocess is based on an catalyzed isotopic exchange module, where the tritium is extracted from tritiated heavy water... Autori: Sorin Gherghinescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25787
SYNTHESIS OF NEW CATALYSTS BY INSERTION OF Co AND Cu IN THE MATRIX OF HYDROTALCITE-LIKE MATERIALS FOR CINNAMALDEHYDE HYDROGENATION
Environmental Engineering and Management Journal › Vol. 10 › Nr. 10 Abstract:This study is focused on the influence of Co and Cu ions located in Zn/Ni/Al matrix on the structural, textural and catalyticproperties of layered double hydroxides (LDHs). The samples were prepared by co-precipitation (Ni2+/Co2+(Cu2+)=0.25;M2+/M3+=2)) at low super-saturation and afterwards characterized by XRD, nitrogen physisorption, thermogravimetry, FT-IR, DRUV-Vis and TPR. The XRD results show that the resulted solids are well crystallized and contain only pure phases of LDHs.Also,... Autori: Adrian Ungureanu, Alexandru Chirieac, Brindusa Dragoi, Emil Dumitriu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25789
USE OF D2EHPA-IMPREGNATED XAD7 RESIN FOR THE REMOVAL OF Cd(II) AND Zn(II) FROM AQUEOUS SOLUTIONS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 10 Abstract:The adsorption performance of a novel support for metal ions sorption and their removal from aqueous solutions was examined.The support is a new solvent-impregnated resin (SIR) which can be considered as an alternative adsorbent material capable ofselective sorption. The adsorbent was prepared by impregnating di-(2-ethylhexyl)-phosphoric acid (D2EHPA) onto AmberliteXAD7 resin beads, by dry impregnation method. The interaction between XAD7 resin and D2EHPA was evaluated by FTIRspectrosco... Autori: Adina Negrea, Adriana Popa, Cornelia Muntean, Corneliu Davidescu, Lavinia Lupa, Mihaela Ciopec, Petru Negrea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25793
BIOMIMETIC HYDROXYAPATITE COATING ON C.P. Ti AND Ti-6Al-4V ALLOY BY ACID AND ALKALI TREATMENT
Environmental Engineering and Management Journal › Vol. 10 › Nr. 11 Abstract:Titanium metal and its alloys have been widely used as implants under load-bearing conditions due to their biocompatibility, excellent corrosion resistance and lightness, but their inability to bond to living bone is a setback. The experiments outlined here investigated hydroxyapatite (HA) coating on Ti metal implants, used to enhance their bioactive properties. In this study, specimens of commercially pure titanium (c.p. Ti) and Ti-6Al-4V were etched in either H3PO4 or HCl, and subsequ... Autori: Chao-Lun Fu, Hsueh-Chuan Hsu, Shih-Ching Wu, Shih-Kuang Hsu, Wen-Fu Ho ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25795
WIRELESS SENSOR NETWORK FOR WILDLIFE MONITORING
Environmental Engineering and Management Journal › Vol. 10 › Nr. 11 Abstract:This paper illustrates a detailed analysis of specific problems and limitations of a WSN designed for an environmental protection/wildlife tracking application. Since the main challenge in designing the network is energy minimization for activities that does not concern detection itself, we will concentrate on methods (and results) to achieve that. For data transmissions, physical and MAC layers were defined in ZigBee (IEEE 802.15.4) and WiFi (IEEE 802.11b) standards.... Autori: Alexandru Frujină, Alina-Mihaela Bădescu, Octavian Fratu, Simona Halunga ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25796
POST TREATMENT OF POULTRY SLAUGHTERHOUSE WASTEWATER AND APPRAISAL OF THE ECONOMIC OUTCOME
Environmental Engineering and Management Journal › Vol. 10 › Nr. 11 Abstract:Recovery of residual ammonium nitrogen (NH4+-N) from dissolved air flotation (DAF) pretreated poultry slaughterhouse wastewater was studied by means of magnesium ammonium phosphate hexahydrate (MgNH4PO4.6H2O, MAP) precipitation in a lab-scale batch study. The maximum recovery values were obtained as 80.2%, 97.1% and 53.6% with the addition of MgCl2.6H2O + KH2PO4, NaH2PO4.2H2O + MgSO4.7H2O, and MgOHCO3 + 85% H3PO4 at pH 9.5, respectively. Based on the physicochemical findings, subsequent... Autori: Aylin Gunay, Idil Ozis, Ilter Turkdogan-Aydinol, Kaan Yetilmezsoy ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25797
THE USE OF THE A.G.P. TEST FOR DETERMINING THE PHYTOPLANKTON PRODUCTION AND DISTRIBUTION IN THE THERMALLY STRATIFIED RESERVOIRS: THE CASE OF YONGDAM RESERVOIR IN KOREA
Environmental Engineering and Management Journal › Vol. 10 › Nr. 11 Abstract: The paper focuses on eutrophication due to nutrients load into a reservoir. A thermally stratified reservoir water body is divided in vertical layers and horizontal zones according to water temperature and depth. The layers show different compositions of limiting nutrient because of the density of flow and due to inhabitants on the bottom of the reservoir exposed to sunlight. The bioassay for algal growth potential test (AGPT) is the most direct and effective way to determine a limitin... Autori: Dimitri Solomatine, Ioana Popescu, Jae-Ki Shin, Nahm-Chung Jung, Peter Kelderman, Roland K. Price ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25798
MANAGEMENT ASPECTS OF BUILDING WITH NATURE PROJECTS IN THE CONTEXT OF EU BIRD AND HABITAT DIRECTIVES
Environmental Engineering and Management Journal › Vol. 10 › Nr. 11 Abstract:The implementation of the EU Bird and Habitat Directives by the ports and dredging industry caused severe project disruptions across North-West Europe in the past. The prevalence of negative experience triggered a new approach, which aims to integrate site-specific ecosystem characteristics and project objectives during the development of the initial project design. This approach is termed "Building with Nature". The authorities and practitioners hope that the new approach will improve ... Autori: Hans Bressers, Kris Lulofs, Vera Vikolainen ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25801
ANALYTICAL CONTROL OF SOIL AND GROUND WATER QUALITY ON A NORTHERN ROMANIAN LANDFILL
Environmental Engineering and Management Journal › Vol. 10 › Nr. 11 Abstract:This paper evaluates the efficiency of some technical depollution actions applied on a Northern Romanian landfill of solid municipal wastes, that provides ca 128 000 inhabitants and 171 economic companies, considering a great variety of specific physicochemical quality indicators for soil (8 indicators) and ground waters (34 indicators). The environmental status of the landfill was previously studied in 2004, through periodic analytical control of ground water (4 observation drilling we... Autori: Carmen Zaharia, Daniela Suteu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25803
CHARACTERIZATION AND TESTING OF THE MAGHEMITE NANOPARTICLES USED FOR REMOVAL OF HEXAVALENT CHROMIUM FROM AQUEOUS SYNTHETIC SOLUTIONS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 11 Abstract:The paper refers at adsorption studies using the maghemite nanoparticles as adsorbent for removal of the hexavalent chromium from aqueous synthetic solutions. Adsorption reached at equilibrium within 10 minutes and was registered as maximum at pH 2.54. The adsorption data were analyzed and fitted by Langmuir isotherm. Investigation methods for characterization of the nanoparticles were X-ray diffraction, scanning and transmission electron microscopy. Also, in order to evaluate the hexav... Autori: Andra Mihaela Predescu, Andrei Predescu, , Eugeniu Vasile ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25805
IMMOBILIZATION OF CONIDIOBOLUS CORONATUS ALKALINE PROTEASE ON WASTE FUNGAL BIOMASS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 11 Abstract:Alkaline protease from Conidiobolus coronatus which is optimally active at pH 10 and 40°C finds application in leather and detergent industries as well as for recovery of silver from waste photographic films. The protease was immobilized in Ca-alginate, polyacrylamide gel and alkali treated waste fungal biomass (ATWFB). ATWFB was found to be most suitable among the matrices tested. Glutaraldehyde marginally increased the binding to ATWFB. Binding of protease to ATWFB seems to be through... Autori: Ryali Seeta Laxman, Shiv Shankar ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25807
KINETICS AND EQUILIBRIUM STUDIES OF REACTIVE YELLOW 125 ADSORPTION ON A NITROGEN DOPED TiO2 MODIFIED ZEOLITE
Environmental Engineering and Management Journal › Vol. 10 › Nr. 11 Abstract:In this study, the adsorption mechanism of a reactive azo dye, Reactive Yellow 125 (RY 125), onto a nitrogen doped TiO2 modified zeolite (Z-TiO2-N) has been examined in order to identify the affinity of the material for the investigated pollutant envisaging its degradation by heterogeneous photocatalysis. Equilibrium experiments were performed and the data obtained were fitted with different isotherm equations, i.e., Langmuir, Freundlich, and Dubinin-Radushkevich (D-R). The Freundlich i... Autori: Cornelia Ratiu, Elida Cristina Ilinoiu, Florica Manea, Laura Cocheci, Liliana Andreea Colar, Rodica Pode ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25809
LEAD (II) BIOSORPTION BY A METAL TOLERANT STREPTOMYCES STRAIN
Environmental Engineering and Management Journal › Vol. 10 › Nr. 11 Abstract:The aim of the present study is the optimization of biosorption conditions using a metal tolerant actinomycete (strain 723) for the removal of lead ions from waste water in batch and dynamic flow mode. The optimum conditions for lead biosorption by the strain were determined as initial pH 3.0, biomass amount 2.0 g L-1, and initial metal concentration 400 mg L-1 in the batch condition. The maximum lead biosorption performance was obtained with a 19 mm diameter column, a 1 mL min-1 flow r... Autori: Ayşe Betül Karaduman, Maria Julia Amoroso, Mustafa Yamaç, Sergio Antonio Cuozzo, Zerrin Pat ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25811
RISK OF EXPOSURE TO ASBESTOS IN CASE OF THE MECHANICAL DEGRADATION OF SOME ASBOCEMENT COMPOSITES
Environmental Engineering and Management Journal › Vol. 10 › Nr. 11 Abstract:The hereby article presents a part of the results of the research made by the author during his PhD degree preparation with respect to asbestos and plastics wastes recycling in the form of composite with polymeric matrix, respectively the toxicological tests performed on the new product. In this respect, three categories of tests were made based on complex and modern analysis methodologies, with high results accuracy: spectral analysis of the wear wastes, morphological analysis of the w... Autori: Cristina Corpodean, Silvian Ionescu, Valeriu Deac ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25812
MONITORING AND MATHEMATICAL MODELING – IMPORTANT TOOLS FOR ENVIRONMENTAL PROBLEMS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 11 Abstract:Analysis and debates of the scientific world and regional/local communities led to the conclusion that environmental problems are a global priority. European Union requested Member States the implementation of the Framework Directive specific for each environmental factor. In this context, Romania has pledged to achieve „good ecological status of water bodiesâ€? by the year 2015. The paper deals with the water quality monitoring of the Upper Olt River and the mathematical modeling of ... Autori: Gabriel-Oreste Sumbasacu, Nicolai Sîrbu, Virgil Petrescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25813
INVESTIGATION OF DRINKING WATER QUALITY CHANGES IN THE DISTRIBUTION NETWORK OF IASI CITY BY MEANS OF AN ON-LINE MONITORING SYSTEM
Environmental Engineering and Management Journal › Vol. 10 › Nr. 11 Abstract:Drinking water produced in water treatment plants almost invariably fulfils the water quality requirements set, for example by the European Union Drinking Water Directive 98/83/EC (EU DWD) and national legislation. However, EU DWD requires that water quality should also meet the requirements at the consumers’ tap. The quality of drinking water changes due to the transportation through the distribution networks and the time spent in the reservoirs until the last point of consumption. W... Autori: , Ioana Gabriela Dascalescu, Maria Cohl ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25814
EMPIRICAL ANALYSIS OF THE INTEGRATION OF ENVIRONMENTAL PROACTIVITY INTO MANAGERIAL STRATEGY. IDENTIFICATION OF BENEFITS, DIFFICULTIES AND FACILITATORS AT THE SPANISH AUTOMOTIVE INDUSTRY
Environmental Engineering and Management Journal › Vol. 10 › Nr. 12 Industrial firms around the world are focusing on environmental sustainability seeking competitive advantages. Environmental proactivity stands as a fundamental part of these actions. The objective of this work is to understand who and why, companies include the environmental proactivity as an element of the company's strategy. This research has been divided into two separate but interconnected, methodological phases. The first step applied qualitative methods to describe a generic model environ... Autori: Ángel Peiró-Signes, Baldomero Segura-García-del-Río, Conrado Carrascosa-López, María-del-Val Segarra-Oña ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25818
THE IMPACT OF ENERGY CONSUMPTION ON THE BENEFIT FUNCTIONS OF ENTERPRISES: PROPOSAL OF AN ENERGY EFFICIENCY INDICATOR
Environmental Engineering and Management Journal › Vol. 10 › Nr. 12 Abstract:Energy Efficiency is a topical concept managed by a wide variety of individuals and institutions from very different areas, bothacademic and professional. Economists, Engineers, Environmentalists, Lawyers and other specialists show, each one of them, anspecific dimension of this so relevant concept, not only for its implications on global evolution of Earth but for its impact onbenefit functions of enterprises.What this paper proposes is to shape a theoretical framework in which, firstl... Autori: Jesus Rivas, Marta Magadán ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25819
COMPARATIVE ANALYSIS OF THE SUSTAINABILITY OF TOURISM IN SPAIN'S REGIONS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 12 Measuring progress of the tourism destinations in the area of sustainability has now become one of the major challenges facing policymakers action. Sustainability is a dynamic concept. In fact, in reality, it really can be measured is not â€?sustainabilityâ€?, but â€?progress towards sustainabilityâ€?, bearing in mind that this is not an ideal target linked to a fixed state of harmony, but a continuous process of adjustment and reorientation of tourism development to achieve the balance between ... Autori: Juan-Ignacio Pulido-Fernández, Marcelino Sánchez-Rivero, Yaiza López-Sánchez ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25821
ECO-INNOVATION ATTITUDE AND INDUSTRY’S TECHNOLOGICAL LEVEL - AN IMPORTANT KEY FOR PROMOTING EFFICIENT VERTICAL POLICIES
Environmental Engineering and Management Journal › Vol. 10 › Nr. 12 This paper links two theoretical constructs underpinned by sustainable values, management of sustainable development and ecoinnovation. The first one becomes a crucial process and adds competitive value and, the second, plays a pivotal role in the search for a sustainable economy and society. This research is an attempt to explore the Spanish companies´ attitude towards sustainability when innovating. Industries were categorized as to their actual technological performance status as low, medium... Autori: Ángel Peiró-Signes, Luis Miret-Pastor, María-del-Val Segarra-Oña, Rohit Verma ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25826
A STATISTICAL INFORMATION SYSTEM SUPPORTING ENVIRONMENTAL POLICIES
Environmental Engineering and Management Journal › Vol. 10 › Nr. 12 Environment and sustainability are key issues for the policy maker. A policy should be first designed and realistically inserted in its proper context (regional, national, European) in order to be correctly assessed. After that, suitable models need to be chosen consistently with the policy context and with the evaluation purpose, to make easier the policy maker task. The aim of this paper is twofold. Firstly, to propose a Statistical Information System (SIS) approach in order to correctly write... Autori: Giorgio Garau, Giovanni Mandras, Lucia Schirru ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25827
AGRICULTURAL DIVERSIFICATION AND THE SUSTAINABILITY OF AGRICULTURAL SYSTEMS: POSSIBILITIES FOR THE DEVELOPMENT OF AGROTOURISM
Environmental Engineering and Management Journal › Vol. 10 › Nr. 12 Agrotourism, a form of tourism that falls within the framework of rural tourism, is based on the tourism taking place on farms with the possibility of doing work with the owners of the farm with this being seen as a leisure activity, educational in nature and of interest to members of many groups. The importance of this kind of tourism resides in the possibility of complementing the income generated from the farm with income produced by the tourism, as well as assuring the conservation of the en... Autori: Ana-María Campón-Cerro, Antonio Pérez-Díaz, Felipe Leco-Berrocal, José-Manuel Hernández-Mogollón ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25828
PHOSPHATE REMOVAL FROM WATER AND RECOVERY USING IRON (Fe+3)OXIDE/HYDROXIDE NANOPARTICLES-BASED AGGLOMERATES SUSPENSION (AggFe) AS ADSORBENT
Environmental Engineering and Management Journal › Vol. 10 › Nr. 12 An iron(Fe+3) oxide/hydroxide nanoparticles-based agglomerates (AggFe) suspension adsorbent was synthesized for efficient, cost-effective phosphate removal. A strong effect of AggFe concentration and pH level of water containing phosphate on removal efficiency was shown. It was found that phosphate adsorption onto the AggFe suspension may be described by pseudo-secondorder reaction kinetics and the Langmuir isotherm model. The unique adsorption properties of synthesized AggFe adsorbent are demon... Autori: Grigori Zelmanov, Raphael Semiat ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25829
COMPARISON BETWEEN RADAR ESTIMATED AND RAIN GAUGE MEASURED PRECIPITATION IN THE MOLDAVIAN PLATEAU
Environmental Engineering and Management Journal › Vol. 11 › Nr. 4 Heavy rainfall events have produced significant damages and casualties in the Moldavian Plateau (Romania) in the last decades. Such phenomena are characterized by large spatial and temporal variations, and the forecast of their occurrence is thus very challenging. This study aims to compare the radar estimations and the rain gauge measurements, in order to improve the quantitative precipitation estimation (QPE) in the area of interest. The research uses data from the WSR-98D (Weather Surveillanc... Autori: Alexandru Dumitrescu, Aurora Bell, Bogdan Antonescu, Sorin Burcea, Sorin Cheval, Traian Breza ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25940
IMPROVING THE PERFORMANCE OF A SENSOR TO MONITOR THE DYNAMICS OF THE HYDRAULIC CHARACTERISTICS OF SOIL
Environmental Engineering and Management Journal › Vol. 10 › Nr. 12 Soil hydraulic characteristics are variable, being influenced by climate changes. Research conducted until now in this area has been based on field soil sampling; their laboratory analysis using experimental techniques; and the use of models and programs for data processing and interpretation. The present research is based on the idea of incorporating smart sensors on site, each one having its own network address, accessible for any location. They can be programmed to send an alarm signal when t... Autori: Constantin Victor Stătescu, Dorin Cotiusca Zauca, Florian Stătescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25831
COMBINED OXIDATION AND ULTRAFILTRATION PROCESSES FOR THE REMOVAL OF PRIORITY ORGANIC POLLUTANTS FROM WASTEWATERS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 12 This paper presents a study on the integration of two advanced treatment processes for the removal of priority organic processes from wastewaters: catalytic oxidation (Fenton homogenous process) followed by ultrafiltration. The aim of this study was to assess the removal efficiency for 4-chlorophenol (used as model pollutant), as well as the decrease in effluent toxicity in various processes conditions. The experiments have mainly focused on studying the effect of the oxidant dose of the catalyt... Autori: , Cezar Catrinescu, Corina Petronela Musteret, Daniela Arsene, George Barjoveanu, Petru Apopei ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25834
EVALUATING THE CLIMATIC CHANGES IN THE HYDROLOGICAL FLOW REGIME OF THE MOLDAVIAN AREAS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 12 Increased intensity of precipitation events in a future climate provide result in a number of regions with improved, more detailed models. Many mathematical models include this part of hydrological cycle with implications regarding the climatic changes. The case study shows aspects regarding the climatic changes and its impact on designing the hydraulic structures and the hydrotechnical constructions behaviour in the case of extreme hydro-meteorological phenomena.... Autori: Catrinel-Raluca Giurma-Handley, Ioan Crăciun, Ion Giurma, , Valentin Boboc ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25836
SUSTAINABILITY IN ENVIRONMENTAL REMEDIATION
Environmental Engineering and Management Journal › Vol. 10 › Nr. 12 Abstract:The concept of sustainable development has become an important objective for policy makers, since the key principle ofsustainable development understands the interdependence between economy, environment and society concerns.The objective of this study is to analyze the supports for sustainable environmental remediation, considering sustainabilityindicators and sustainable remediation practices, based on both methods that are known for a long time as well as emergentprocesses and technol... Autori: Isabela Maria Simion, Maria Emiliana Fortuna, Maria Gavrilescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25837
Environmental Engineering and Management Journal 10/12
Environmental Engineering and Management Journal › Vol. 10 › Nr. 12 â€? SUSTAINABILITY IN ENVIRONMENTAL REMEDIATION
� EVALUATING THE CLIMATIC CHANGES IN THE HYDROLOGICAL FLOW REGIME OF THE MOLDAVIAN AREAS
� ENSURING ECONOMICAL AND FINANCIAL SUSTAINABILITY: STATE FISCAL CONTROL - A WAY TO PREVENT AND REDUCE TAX AVOIDANCE
� COMBINED OXIDATION AND ULTRAFILTRATION PROCESSES FOR THE REMOVAL OF PRIORITY ORGANIC POLLUTANTS FROM WASTEWATERS
� THE FREE LEVEL UNIFORM POST-DARCY FILTRATION THROUGH A SPHERE-MADE HOMOGENOUS MEDIUM
� HSLA ST... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25838
ABIOTIC FILTERING OF BENTHIC INVERTEBRATE GUILDS IN THE MARGHERITA DI SAVOIA SALT PAN, ITALY
Environmental Engineering and Management Journal › Vol. 11 › Nr. 4 The structure of biological communities is a result of the combined action of an environmental selection, determined by the physico-chemical characteristics of an ecosystem. This process results in the selection of the species depending on their tolerances (abiotic filter) and their ability to cope with the interactions among species (biotic filter). In this work, the importance of abiotic filters on the structure of benthic macro-invertebrate guilds was evaluated in a hyperalyne transitional wa... Autori: Alberto Basset, Aurelia Caldararu, Catalina Iticescu, Enrico Barbone, Ilaria Rosati, Lucian P. Georgescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25939
ACTIVATED SLUDGE FLOC CHARACTERIZATION BY CONFOCAL LASER SCANNING MICROSCOPY
Environmental Engineering and Management Journal › Vol. 11 › Nr. 3 The aim of this work is the study of activated sludge floc samples stained with different dyes and imaged by Confocal Laser Scanning Microscopy (CLSM). Activated sludge flocs were stained for lipids, sugars and esterase enzyme producing bacteria. Images were acquired for different samples to analyze the structural characteristics of the bioaggregates. The analysis of the CLSM images allowed for the localization and estimation of the quantity of different build-up materials. The 3-D reconstructio... Autori: Bela Abraham, Botond Raduly, Dan Niculae Robescu, Szabolcs Lanyi, Szabolcs Szilveszter, Szilard Bucs ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25937
DIRECT SEPARATION OF PROPIONIC ACID FROM Propionibacterium acidipropionici BROTHS BY REACTIVE EXTRACTION 1. INTERFACIAL MECHANISM AND INFLUENCING FACTORS
Environmental Engineering and Management Journal › Vol. 11 › Nr. 4 The reactive extractions of propionic acid with TOA dissolved in three solvents with different dielectric constants (dichloromethane, butyl acetate, n-heptane) without and with 1-octanol as phase modifier have been comparatively analyzed. The results indicated that the mechanism of the interfacial reaction between acid and extractant is controlled by the organic phase polarity. In absence of 1-octanol, the structures of the extracted complexes are RCOOH.Q2 for dichloromethane and butyl acetate, ... Autori: Alexandra Cârlescu, Anca-Irina Galaction, Dan Caşcaval, Mădălina Poştaru ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25938
POLYCYCLIC AROMATIC HYDROCARBONS IN WASTEWATER SEWERAGE SYSTEM FROM THE CLUJ-NAPOCA AREA
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 Polycyclic aromatic hydrocarbons (PAHs) are by-products of petrol transformation; a report prepared by ICON, London, United Kingdom in 2001, showed that the principal sources of polycyclic aromatic hydrocarbons in wastewater are domestic usage, storm runoff and commercial effluent. This work presents the results on 14 commonly occurring and/or highly carcinogenic PAH compounds listed as priority pollutants by the United States Environmental Protection Agency and the European Union. Wastewater sa... Autori: Dumitru Ristoiu, Edward Muntean, Livia Alhafez, Nicoleta Muntean, Radu Mihaiescu, Tania Mihaiescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25847
THE 6th INTERNATIONAL CONFERENCE ON ENVIRONMENTAL ENGINEERING AND MANAGEMENT ICEEM06, 2011
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 The International Conference on Environmental Engineering and Management, ICEEM 2011, at its 6th Edition, represents a scientific event that is dedicated to the promotion and dissemination of the scientific results obtained at national and international level in the fields of environmental engineering, environmental management and sustainability. The event was initiated and organized every 2 years, since 2002, by the Department of Environmental Engineering and Management, Faculty of Chemical Eng... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25846
REMOVAL OF Cr(VI) FROM AQUEOUS ENVIRONMENT USING PEAT MOSS: EQUILIBRIUM STUDY
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 The removal of Cr (VI) from aqueous solutions by sphagnum peat moss was investigated in batch experiments as a function of solution pH and initial Cr (VI) concentration. The highest removal percentage (R=99%) was obtained at pH = 1, in solutions of 20.8 mg Cr (VI)/L. In order to establish the mechanism of the removal process, Cr (VI) and total Cr (Cr (VI) + Cr (III)) in residual solutions was analyzed. The Cr (VI) removal by the peat moss at low pH is governed by two processes – electrostatic ... Autori: Catalin Balan, Doina Bilba, Irina Volf, Matei Macoveanu, Petru Bulai ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25849
PHYSICOCHEMICAL AND RHEOLOGICAL CHARACTERIZATION OF COMPLEX COAGULANTS DERIVED FROM WEAK AND MEDIUM ANIONIC POLYMERS AND MEDIUM CATIONIC SURFACTANT
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 This paper presents the physicochemical and rheological properties of some complex coagulants derived from the weak and medium anionic polymers and medium cationic surfactant in order to evaluate the opportunity to use them in destabilizing and removing the colloidal systems from water and wastewater. In this respect, weak anionic and medium anionic copolymers of acrylamide and sodium acrylate with commercial names of Preastol 2515 and Preastol 2540, and a medium cationic surfactant derived from... Autori: Constantin Bobirică, Gabriel Dabija, Liliana Bobirica, Mihaela Mihai ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25850
EQUILIBRIUM AND KINETICS STUDY OF NITRATE REMOVAL FROM WATER BY PUROLITE A520-E RESIN
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 Equilibrium and kinetics of nitrate removal from aqueous solutions of pH = 6.8 were investigated using the strong base anion exchange resin (Purolite A-520E) in the batch method. The experimental equilibrium data were analyzed by means of the Langmuir, Freundlich and Dubinin-Radushkevich sorption isotherm models. The Langmuir model describes sorption isotherm of nitrates with high correlation coefficients and better than Dubinin-Radushkevich and Freundlich models. The effect of temperature on th... Autori: Anca Ceica, Igor Creţescu, Ion Balasanian, Laura Bulgariu, Liliana Lazăr ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25851
CONTROLLING THE ACTIVITY AND CHEMOSELECTIVITY IN THE CINNAMALDEHYDE HYDROGENATION BY INSERTION OF NONNOBLE METALS IN THE MATRIX OF HYDROALCITE-LIKE MATERIALS
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 The purpose of this study was to prepare new nanocomposite catalysts of Metal/LDHs type by mild reduction of transition metal cations Co2+ and Cu2+ substituted in the matrix of ZnAl-LDH at 150°C and atmospheric pressure, under hydrogen flow. To this end, a series of ZnCuCoAl layered double hydroxides (LDH) precursors were synthesized by co-precipitation method. M2+/M3+ (i.e., Zn2+/Al3+) molar ratios were kept constant while the Cu2+/Co2+ molar ratios were varied in order to investigate their in... Autori: Adrian Ungureanu, Alexandra Sasu, Alexandru Chirieac, Alina Moscu Corcodel, Brindusa Dragoi, Constantin Rudolf, Emil Dumitriu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25852
PHYSICO-CHEMICAL CHARACTERISTICS AND DYNAMICS OF THE WELLS WATER IN GALATI COUNTY (ROMANIA)
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 The availability of good quality water is an indispensable condition for preventing diseases and improving the quality of life. Water is one of the most important renewable resources, which must be prevented from deterioration in quality. Various physicochemical parameters like pH, alkalinity, total hardness, total dissolved solids, calcium, magnesium, nitrate, have a significant role in determining the potability of drinking water. In this study, samples were collected from wells situated in vi... Autori: Maria Cioroi, Mirela Praisler ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25853
PHOTOCATALYTIC ACTIVITY OF A SILVER DOPED TIO2 MODIFIED ZEOLITE IN THE DEGRADATION OF REACTIVE YELLOW 125 AZO DYE
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 The aim of this study was to investigate photocatalytic activity of a silver doped TiO2 modified zeolite (Z-TiO2-Ag) in the photocatalytic degradation of Reactive Yellow 125 (RY 125) azo dye. The operational conditions using photocatalyst dose of 1g·L-1 at pH 6 were established as optimal conditions for photocatalysis application in RY 125 dye solution degradation. The photocatalyst exhibited a good performance for discoloration at all studied concentrations (25, 50 and 100 mgL-1). A go... Autori: Carmen Lazau, Elida Cristina Ilinoiu, Florica Manea, Liliana Andreea Colar, Rodica Pode ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25854
FOOD CHAIN BIOMAGNIFICATION OF HEAVY METALS IN SAMPLES FROM THE LOWER PRUT FLOODPLAIN NATURAL PARK
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 Pollutants transfer via the food chain was investigated in a wetland ecosystem from the Lower Prut Floodplain Natural Park in Romania. Trace elements (Cd, Cu, Pb and Zn) were determined by Inductively Coupled Plasma – Optical Emission Spectrometry (ICP-OES) from samples belonging to primary producers and primary and secondary consumers, and also from water and sediments samples. Non-essential trace elements as Cd and Pb exhibited low concentrations in molluscs and fish, but zinc had shown conc... Autori: Alin Tudorache, Gabriel Chisamera, Gabriel Lucian Radu, Iulia Gabriela David, Laurentiu Rozylowicz, Marius Lucian Matache ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25855
ENVIRONMENTAL IMPACT OF PULP AND PAPER MILLS
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 The paper aims to present the environmental impact of pulp and paper manufacturing and the most important production and control practices to minimizing this impact. The environmental consequences of manufacturing pulp and paper from pulping and bleaching processes are discussed in qualitative and quantitative terms. In these processes, sulfur compounds and nitrogen oxides are emitted to the air, and chlorinated and organic compounds and nutrients are discharged to the wastewaters. Large quantit... Autori: Adrian Catalin Puitel, Dan Gavrilescu, Gheorghe Dutuc, Grigore Craciun ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25857
THE IMPACT OF ORGANIC AND MINERAL FERTILIZERS ON THE YIELD AND MINERALS CONTENTS OF Fabaceae FROM PERMANENT GRASSLAND
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 This paper presents original studies about the influence of mineral and/or organic fertilization on the minerals contents (P, Na, K, Ca, Mg, Fe, Mn, Zn, Cu, Ni and Pb) in leguminous plants from permanent grassland situated in a hill area of Banat County. Determination of minerals in grassland is very important both for the nutritional or toxic effects of these elements and their compounds, in the plants, animals and environment. Phosphorous was analyzed colorimetric and all the others metals hav... Autori: Alexandru Moisuc, Iosif Gergen, Monica Harmanescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25858
ASSESSING ENVIRONMENTAL IMPACT OF PACKAGING PAPER PRODUCTION BASED ON RECYCLED FIBRE RAW MATERIAL
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 This paper is part of LCA studies performed in the frame of FP7 project â€?Recovered Paper Sorting by Innovative Technologies - SORT ITâ€?. It analysis the results obtained by Life Cycle Impact Assessment (LCIA) of the reference case for recycled packaging paper manufacturing (current sorting technology), which will constitute a comparison base for new sorting technology developed in SORT IT project. The main stages considered in the life cycle were: recovered paper (RP) transport from collectio... Autori: Alina Iosip, Antonio Dobon, Elena Bobu, Mercedes Hortal ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25860
EFFECTS OF THE ENVIRONMENTAL STRESS ON TWO FISH POPULATIONS REVEALED BY STATISTICAL AND SPECTRAL ANALYSIS
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 The aquatic species are permanently subjected to various stresses through the ecosystem and the food habit. Elucidating the impact at the cellular level allows us to understand the ways in which the polluting elements and their derivatives can disrupt the metabolism of aquatic organisms triggering apoptosis in individual cells or necrosis affecting groups of neighbouring cells. The aim of this preliminary study is to highlight the influence of the environmental factors on two fish population by ... Autori: , Camelia Ureche, Dorel Ureche, Gabriel Lazar, Ileana Denisa Nistor, Irina Loredana Ifrim, Iuliana Mihaela Lazar, Marius Stamate, Valentin Nedeff ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25861
FILTERING MEDIA FUNCTIONALIZED WITH MONOCHLOROTRIAZINYL-β-CYCLODEXTRIN
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 The present study describes the preparation of a filtering medium from a polymeric cellulosic support (filter paper) by functionalization with monochlorotriazinyl-β-cyclodextrin. The permanent immobilization of cyclodextrins confers the new material special properties and the potential for a better decontamination of liquid and gaseous effluents. The structure, physicomechanical and filtration properties of the filter paper, successfully functionalized with MCT-β-CD, have been emphasiz... Autori: Ana-Maria Grigoriu, Constantin Luca, Florin Ciolacu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25862
LEVELS OF METALS AND ORGANOCHLORINE COMPOUNDS IN SEAFOOD CONSUMED IN CLUJ-NAPOCA, ROMANIA
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 Marine species (n=36) available in a supermarket of Cluj-Napoca city, Romania were collected and analyzed for the levels of heavy metals (Cr, Cu, Zn, Cd, Pb, Hg) and As, polychlorinated biphenyls (PCBs), and organochlorine pesticides (OCPs), such as dichlorodiphenyltrichloroethane (DDT) and analogous, hexachlorocyclohexanes (HCHs) and hexachlorobenzene (HCB). The collection included samples from twelve fish groups (sardine, tuna, herring, pangasius, marbled rockcod, hake, shrimp, pink shrimp, lo... Autori: Adriana Gog, Claudiu Tanaselia, Ioan Ştefan Groza, Marin Senila, Mirela Miclean, Oana Cadar ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25863
MICROWAVE-ASSISTED HYDROTHERMAL SYNTHESIS OF COMPOSITE MATERIALS BASED ON ZEOLITE-TiO2 NANOCRYSTALS
Environmental Engineering and Management Journal › Vol. 11 › Nr. 3 The composite materials based on natural zeolite and undoped and N-doped TiO2, i.e., Z-Na-TiO2 and Z-Na-TiO2-N, were successfully synthesized by solid-state reaction in microwave-assisted hydrothermal conditions. Undoped TiO2 and N-doped TiO2 nanocrystals were previously synthesized by sol-gel method. The X-rays diffraction results of TiO2 nanocrystals indicated that anatase TiO2 is the dominant crystalline type. The composite materials were structural and morphological characterized by X-ray di... Autori: Cornelia Bandas (Ratiu), Carmen Lazau, Paula Sfirloaga, Florica Manea, Rodica Pode ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25911
A NEW PHOTO-FENTON PROCEDURE APPLIED IN OXIDATIVE DEGRADATION OF ORGANIC COMPOUNDS FROM WASTEWATER
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 This paper presents a new photo-Fenton procedure applied in oxidative degradation of organic pollutants using 4-chlorophenol (4-CP) as low biodegradable testing compound. The homogeneous photo-Fenton process was modified by using a photo-catalytic reactor equipped with a steel wire mesh which acts as source for Fe2+ catalyst generation into reaction medium and as heterogeneous catalyst, by iron oxy-hydroxyl compounds formation on the surface. The oxidation process was evaluated by measuring the ... Autori: Adina-Elena Segneanu, Cristina Orbeci, Ion Untea, Mihaela Emanuela Craciun, Rodica Stanescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25864
EVALUATION OF DIFFERENT CONTROL STRATEGIES OF THE WASTE WATER TREATMENT PLANT BASED ON A MODIFIED ACTIVATED SLUDGE MODEL NO. 3
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 The first part of this work presents the development and implementation in the Benchmark Simulation Model No 1 (BSM1) of a modified Activated Sludge Model No 3 (ASM3). The enhanced ASM3 presented in this study has three modifications compared to the original ASM3. The first modification is the representation of the simultaneous heterotrophic biomass growth on the primary substrate and on the internal storage products. Second, nitrification is modeled as a two-step process with nitrite as an inte... Autori: George Simion Ostace, Paul Şerban Agachi, Vasile Mircea Cristea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25865
EVALUATION OF HEAVY METALS TOXICITY ON TWO MICROBIAL STRAINS ISOLATED FROM SOIL: Azotobacter sp. AND Pichia sp.
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 Chromium and cadmium are heavy metals that occur naturally in the environment and especially in soils. Their toxic effect is more pronounced at high concentrations and it depends on the oxidation states. While Cr (III) is considered an essential trace element for the metabolism of living organisms, Cr (VI) has a higher mobility and is easily soluble in soils and can be leached into surface water or groundwater, and taken up by plants. That leads to a toxic and carcinogenic effect to humans via i... Autori: Dumitru Bulgariu, Florian Statescu, Maria Gavrilescu, Mariana Diaconu, Vasile Lucian Pavel ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25866
EVALUATION OF ATMOSPHERIC POLLUTION BY USING NATURAL LOW-COST SORBENTS
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 In this study, we have tested the possibility of utilization of three types of natural low-cost sorbents: (Sphagnum moss peat, natural moss peat and alkaline treated moss peat) for the active biomonitoring of air quality from Căliman National Park area (Dorna Basin), during of two months (September – October 2010). The concentrations of some heavy metals (Pb, Cd, Cu, Mn and Fe) in the sorbent samples were used as an indicator of the level of air pollution in the studied region. After expo... Autori: Iulian-Ovidiu Sandu, Laura Bulgariu, Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25868
IN SITU STUDY OF THE ELECTRICAL/DIELECTRIC PROPERTIES OF ALUMINA SUPPORTED VANADIA USED AS COMBUSTION CATALYSTS
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 The synthesis of vanadium oxide systems (with 5 and 20 wt% V2O5 loadings) supported on commercial γ-alumina was carried out by a wet impregnation method. The samples were characterized by low-temperature nitrogen adsorption (BET), inductively coupled plasma (ICP) method and by in situ electrical conductance/capacitance measurements. The adsorption of CO was used to investigate the acidic properties of alumina support and V2O5/-Al2O3 catalysts by FTIR spectroscopy. The catalytic acti... Autori: , Cristian Hornoiu, Mariana Scurtu, Monica Caldararu, Niculae I. Ionescu, Tatiana Yuzhakova, Veronica Bratan ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25869
POSSIBLE APPLICATION OF METAL SENSITIVE RED FLUORESCENT PROTEINS IN ENVIRONMENTAL MONITORING
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 The metal sensitivity and selectivity of two fluorescent proteins was investigated. The studied proteins are mutant forms of the red fluorescent protein (DsRed); according to our results, both proteins showed sensitivity to the presence of copper[II] and nickel ions. The fluorescence intensity of the proteins has decreased significantly in the presence of copper ions in the micromolar range. Metal binding by these proteins is a reversible process, as addition of a chelating agent liberates the b... Autori: Beata Abraham, Ildiko Miklossy, Judit Petres, Laszlo Szilagyi, Maria Szabo (Palfi), Szabolcs Lanyi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25870
CARBON NANOTUBES COMPOSITE FOR ENVIRONMENTALLY FRIENDLY SENSING
Environmental Engineering and Management Journal › Vol. 11 › Nr. 2 The performances of two types of multi-walled carbon nanotubes-based composite electrodes, i.e., MWCNT-Epoxy (CNTEpoxy) and Natural Zeolite-modified- MWCNT- Epoxy (NZ-CNT-Epoxy) are described in order to use them for electroanalytical application. Both electrodes were synthesized, electrically and electrochemically characterized and tested for the detection of ascorbic acid (AA) in aqueous solutions. The electrochemical characterization using classical potassium ferricyanide method showed a high... Autori: Adriana Remes, Anamaria Baciu, Elida Ilinoiu, Florica Manea, Joop Schoonman, Stephen J. Picken ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25877
INDOOR AIR QUALITY IN EDUCATIONAL INSTITUTIONS IN ESTONIA
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 The indoor climate of educational institutions (kindergartens, secondary schools and universities) in Estonia is investigated. The main hazards for students’ health are: the high concentration (over 800 ppm) of carbon dioxide in the classrooms that refers to the inappropriate ventilation; the non-ergonomic computer workplaces where the direction of the natural light (without blinds for the windows) is causing glare on the monitors; the low humidity of the air in winter; the low air temperature... Autori: Ada Traumann, Piia Tint, Viiu Tuulik ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25873
MONITORING AND ASSESSMENT OF HERBICIDES REMOVAL BY INDUSTRIAL WASTEWATER TREATMENT
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 Herbicides industry is a large consumer of water, as well as a major wastewater generator, its effluents contain priority organic pollutants in very high concentrations which have severe effects on human health and on the environment due to their toxicity and bio-recalcitrant nature, persistence in the environment and bioaccumulation. A vast number of herbicides and other priority organic pollutants have been found in wastewater effluents, surface water, and drinking water around the world. The ... Autori: Bianca Weinberg, ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25874
THERMAL STABILITY AND SURFACE STRUCTURE OF SnO2-CeO2 IMPREGNATED CATALYSTS
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 Newly prepared SnO2-CeO2 catalyst samples used as depollution catalysts were characterized applying low-temperature nitrogen adsorption (BET), X-ray diffraction (XRD), thermo-gravimetry (TG-dTG) and temperature-programmed reduction (TPR) methods. Pure SnO2 has higher surface area (17 m2/g) than the pure CeO2 (8 m2/g). Addition of organic tin oxide precursor to ceria in amount of 5 wt% slightly decreases the surface area of CeO2 (SSn5-Ce= 7 m2/g). The increase of tin oxide content to 10 and 20 wt... Autori: , Anca Vasile, , Cristian Hornoiu, Jozsef Kovacs, Tatiana Yuzhakova, Veronica Bratan ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25875
Letter to Editor
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 This manuscript pointed out an error on pseudo-second-order rate equation. The mistake in the model was duplicated in number of papers in recent years. This type of error could be avoided if authors have had paid more attentions to details about the model from the original paper. In addition, it may leads to trouble for the reader to locate the original articles. It is very provoking and time-consuming to search for a reference when the information is not correct. This comment offered informatio... Autori: Yuh-Shan Ho ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25876
INTEGRATED ULTRASONICATION-ULTRAFILTRATION PROCESS FOR THE TREATMENT OF TEXTILE EFFLUENTS: ASSESSMENT OF OPERATIONAL PARAMETERS
Environmental Engineering and Management Journal › Vol. 11 › Nr. 2 Nowadays, advanced wastewater treatment has become a stringent step for the removal of priority organic pollutants and many technologies have been proposed in order to achieve effluents with a superior quality for recycling or reuse purposes. This research is focused on the possibilities of using an integrated process, comprising 2 stages: the advanced oxidation process of ultrasonication and a membrane separation process, ultrafiltration. The main objective of the study is to assess the efficie... Autori: , Daniela Cailean ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25880
OPTIMIZATION PROCESS OF CADMIUM AND ZINC REMOVAL FROM SOIL BY PHYTOREMEDIATION USING Brassica napus AND Triticales sp.
Environmental Engineering and Management Journal › Vol. 11 › Nr. 2 In this paper, Cadmium and Zinc removal from soil by phytoremediation was investigated. The experiments were carried out with two types of plants, Brassica napus and Triticales sp. Response surface modeling and optimization of Cd and Zn removal rate was performed for each type of plant under controlled conditions, i.e. as a function of Cd concentration, Zn concentration and pH. Although the maximum heavy metal uptake (i.e. 2.4 % Cd removal rate and 1.80 % Zn removal rate, respectively) was obtai... Autori: Corneliu Pohontu, Gabriela Soreanu, Igor Creţescu, Matei Macoveanu, Paula Caraiman Cojocaru ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25881
NEW POLYURETHANE – HYDROXYAPATITE COMPOSITES MEMBRANES
Environmental Engineering and Management Journal › Vol. 11 › Nr. 2 This research investigates the influence of certain vitamins (A and D2) on the possibility of hydroxyapatite formation on polymer surfaces. A coating method based on biomimetic techniques was used to form a crystalline hydroxyapatite thin layer on porous polyurethane matrix. The method is based on a wet process of hydroxyapatite formation that involves porous polyurethane film soaking in a modified synthetic Simulated Body Fluid (SBF) solution. This modified SBF solution contains vitamin A and v... Autori: Alina Costina Luca, Constantin Luca, Gabriela Ciobanu, Simona Ilisei ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25884
IMPROVING SOIL QUALITY BY ADDING MODIFIED ASH
Environmental Engineering and Management Journal › Vol. 11 › Nr. 2 Fly ash and fly ash based zeolites are inorganics used for improving soil quality. In the current paper, the hydrothermal modification of fly ash was studied. Three methods have been employed for this purpose. The first method involved the use of an autoclave, where synthesis has been performed at a temperature of 120 0C and a treatment time of 4 to 8 hours. Within the second method, the modification of the ash at a temperature of 600 0C by fusion was carried-out. In this method, a mixture of as... Autori: Corneliu Munteanu, Daniel Bucur, Lacramioara Rusu, Maria Harja, Marinela Barbuta, Ramona Carla Ciocinta ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25885
THE BEHAVIOR OF THE FERROUS MATERIALS MAGNETIZED IN EXTREME CONDITIONS CAUSING ELECTROMAGNETIC INTERFERENCE
Environmental Engineering and Management Journal › Vol. 11 › Nr. 2 The paper proposes a method and a technology that allows the generation of a very high intensity magnetic field, at a high pressure and within an extremely short period of time into a ferrous material, in order to study the behavior of such material from the magnetic and structural perspective. The method consists in producing the â€?compressionâ€? of an initial magnetic flux that is generated in a coil that has inside a ferrous material cylinder (the armature), subject to testing, done by a con... Autori: Nicolae Badara, Octavian Tarabuta, Vasile Dobref ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25887
ASSESSING IMPACTS OF TRIAZINE PESTICIDES USE IN AGRICULTURE OVER THE WELL WATER QUALITY
Environmental Engineering and Management Journal › Vol. 11 › Nr. 2 The herbicide use can be seen as an auxiliary path for new farming methods, providing more advantageous farming and land use capabilities and increasing crop yields. Some of them are quickly degraded but others persist in the environmental compartments being toxic for human health and the environment.The aim of this study was to evaluate the impact of some triazine herbicides from agricultural sources on quality of well and surface water, in two regions of Romania with different agricultural act... Autori: Andreea Dragus, Mihail Simion Beldean-Galea, Radu Mihaiescu, Tania Mihaiescu, Dumitru Ristoiu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25889
EUTROPHICATION MODELLING OF GOLESTI RESERVOIR IN ROMANIA
Environmental Engineering and Management Journal › Vol. 11 › Nr. 2 Global existence of a large percentage of lakes with eutrophication problems (54% in Romania) demands a predictive tool for the quality of these ecosystems. In this context, this paper proposes an eutrophication model that describes the thermal and biochemical behaviour of an eutrophic reservoir. This model was used to study an artificial lake (Goleşti reservoir) located in Romania. The conceptual model concerns a lake, which is considered as a closed aquatic system, and analyze a simply fo... Autori: Gabriela Elena Dumitran, Iulia Rodica Damian, Liana Ioana Vuta ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25890
ANALYSIS AND MANAGEMENT OF SPECIFIC PROCESSES FROM ENVIRONMENTAL ENGINEERING AND PROTECTION BASED ON SUSTAINABILITY INDICATORS
Environmental Engineering and Management Journal › Vol. 11 › Nr. 2 This paper describes the scientific framework established within doctoral and postdoctoral programs designed to contribute to a thorough understanding of the specific processes involved in environmental engineering and protection, as to improve the environmental management and performance in an efficient and sustainable way. A coherent conceptual framework is developed for the analysis and management of some specific approaches in engineering and environmental protection (pollution phenomena, de... Autori: Cristina Ghinea, Daniela Tudorache Fertu, Isabela Maria Simion, Laura Carmen Apostol, Mădălina Petraru, Maria Emiliana Fortuna, Maria Gavrilescu, Petronela Cozma, Raluca Maria Hlihor ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25891
FTIR SPECTROSCOPY – A NONDESTRUCTIVE METHOD TO MONITOR THE IMPACT OF DIFFERENT FERTILIZERS ON THE FLORISTIC MATRIX OF PERMANENT GRASSLAND
Environmental Engineering and Management Journal › Vol. 11 › Nr. 2 Quantification of the floristic matrix is important both for animal’s nutrition and for the biodiversity monitoring of plants species under the influences of substance flow. Our researches have the main aim to study the possibilities offered by Infrared Spectroscopy in rapid, unpolluted and non-destructive analysis of floristic matrix modification from perennial grassland fertilized with organic and/or mineral fertilizers. It was performed three different FTIR models: for Poaceae (R2=0.949; RM... Autori: Iosif Gergen, Moisuc Alexandru, Monica Harmanescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25892
MUNICIPAL SOLID WASTE MANAGEMENT FOR SUSTAINABLE DEVELOPMENT OF BUCHAREST METROPOLITAN AREA
Environmental Engineering and Management Journal › Vol. 11 › Nr. 2 The concept of collaborative management is considered to be one of the most efficient instruments for sustainable development of some areas, which are under anthropic pressure due to the production of solid waste. The paper stands for the necessity of promoting a collaborative management among the main actors involved in an efficient and sustainable urban solid waste management, in the metropolitan area of Bucharest. The present management is mainly based on the strictly economic vision of manag... Autori: Andrei Schvab, Daniela Zamfir, Gabriel Pascariu, Ioan Ianoş, Loreta Cercleux, Valentina Stoica ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25893
ASSESSING THE HUMAN EXPOSURE DUE TO WIRELESS LOCAL AREA NETWORKS IN OFFICE ENVIRONMENTS
Environmental Engineering and Management Journal › Vol. 11 › Nr. 2 Wireless local area networks (WLAN) are an increasingly used communication technology employing energy of radiofrequency (RF). Although the power emitted by WLAN systems is relatively small (in Europe, a maximum of 100 mW is permitted in the classic 2.4 GHz frequency band), concerns about possible health effects risks from exposure to radiofrequency (RF) fields originating on WLAN are sometimes expressed by the general public. In such a context, this paper presents results of a survey conducted ... Autori: Alexandra Salceanu, Eduard Lunca, Igor Creţescu, Valeriu David ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25896
ENVIRONMENTAL PERFORMANCE – PART OF MANAGEMENT PERFORMANCE
Environmental Engineering and Management Journal › Vol. 11 › Nr. 2 The approached subject presents some features of a methodology for original research, considering the environmental performance as a component of the organizations management performance quantification, by considering the environmental management approach as an integrated environmental informational and decisional concept. The current trend in the assessment of performance management is the integration of the environmental management in the organizations management in a conscious and regulated w... Autori: Mihaela Luminita Lupu, Nicolae Trofin, Orest Trofin ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25897
ASSESSMENT OF TOURISM DEVELOPMENT IN ROMANIA: ENVIRONMENTAL ISSUES AND CHALLENGES IN NORTH OF MOLDOVA
Environmental Engineering and Management Journal › Vol. 11 › Nr. 2 Tourism is one of the essential components of population services and a major influence factor for economic and social development. The tourism industry is characterized by a great structural complexity, in multiple forms of this service.This industry can also have an impact on the natural resources and environment in the various tourist destinations, on everyday life of these locations and also on the individuals from those areas, whether rural or urban. Nowadays, tourism faces different challe... Autori: , Elena Elisabeta Pomeanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25903
ENHANCEMENT OF PHENOL OXIDATION BY OZONE IN WASTEWATER. II: KINETIC MODELING
Environmental Engineering and Management Journal › Vol. 11 › Nr. 2 Four processes have been used to enhance the ozonation of phenol in water: I-pH increasing (O3-pH), II- hydrogen peroxide addition (O3- H2O2), III- UV irradiation (O3- UV), and in the presence of both H2O2 and UV; IV-(O3- UV- H2O2). In each of these processes the rate of phenol degradation has two components: direct and indirect.... Autori: Eszter Arany, Ildiko Bartalis, Ilie Siminiceanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25904
EFFECT OF AERATION RATE ON DOMESTIC WASTEWATER TREATMENT USING AN INTERMITTENTLY AERATED SEQUENCING BATCH REACTOR (IASBR) TECHNOLOGY
Environmental Engineering and Management Journal › Vol. 12 › Nr. 7 Abstract Effects of the aeration rate on nutrient removal from synthetic domestic wastewater using an intermittently aerated sequencing batch reactor (IASBR) were studied at ambient temperature. Two aeration rates, 0.8 and 1 L air/min, were studied. At the aeration-rate of 0.8 L air/min, removals of COD, NH4+-N, total nitrogen (TN) and PO43--P were 84%, 96%, 75% and 99%, respectively. At the aeration rate of 1 L air/min, removals of COD, NH4+-N, TN and PO43--P were 90%, 99%, 70% and 66%, re... Autori: Liam G. Henry, Liwen Xiao, Xinmin Zhan ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25941
CHARACTERIZATION OF NITRIFICATION PERFORMANCE AND MICROBIAL COMMUNITY IN A MBBR AND INTEGRATED GBBR-MBBR TREATING HEAVILY POLLUTED RIVER WATER
Environmental Engineering and Management Journal › Vol. 12 › Nr. 7 Abstract A one-stage aerobic moving bed biofilm reactor (MBBR) (Reactor A) and a combined reactor (Reactor B) involving an anoxicgravel-bed biofilm reactor (GBBR) and an aerobic MBBR were applied to the treatment of heavily polluted river water. Reactorperformance was investigated throughout the experiment for almost 200 days and molecular techniques including PCR-DGGE,FISH/CLSM and FISH/FCM were used to reveal the evolutions of bacteria community, abundance of nitrifying bacteria and their... Autori: Linyun Gu, Xiangchun Quan, Yin Qian, Yuansheng Pei, Zhifeng Yang ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25942
WHOLE CELL BIOREPORTER FOR THE ESTIMATION OF OIL CONTAMINATION
Environmental Engineering and Management Journal › Vol. 12 › Nr. 7 Abstract Oil contamination has been one of the most common environmental pollution due to its threat to both human health andecosystems. It is difficult for the application of conventional chemical analysis to detect oil contamination in-situ, estimatebioavailability and rapidly assess the environmental risk. In this study, two bioreporters were employed for the rapid and directdetection of oil content and genotoxicity in a cutting oil contaminated site in China. Acinetobacter baylyi ADPWH_... Autori: Bo Jiang, Chuan Li, Dayi Zhang, Guanghe Li, Wei E. Huang, Yizhi Song ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25944
CONTROL MODE OF RURAL NONPOINT SOURCE POLLUTION IN TAI LAKE BASIN, CHINA
Environmental Engineering and Management Journal › Vol. 12 › Nr. 7 AbstractEutrophication in Tai Lake Basin is becoming severe in recent years. Although extensive efforts have been made, seeking analternative cost-effective approach to control water pollution in the area is still an urgent priority. In this paper, the reasons led tothe poor control of rural nonpoint source pollution in Tai Lake Basin area were discussed. Thereafter, the paper proposed theways and means to reduce rural nonpoint source pollutants by a case study in Fenshui village along Caoqiao R... Autori: Chuang Zhou, Houhu Zhang, Jingcheng Duan, Yang Yang, Yimin Zhang, Yuexiang Gao ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25945
ENHANCED NITROGEN REMOVAL FROM REJECT WATER OF MUNICIPAL WASTEWATER TREATMENT PLANTS USING A NOVEL EXCESS ACTIVATED SLUDGE (EAS) BASED NITRIFICATION AND DENITRIFICATION PROCESS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 7 AbstractIn this study, a novel excess activated sludge (EAS) based nitrification and denitrification process was developed using EAS toprovide nitrifiers and denitrifers for nitrogen removal from the reject water of a municipal wastewater treatment plant (MWWTP).This can achieve a significant reduction in the nitrogen (N) loading in wastewater treatment plants. The results show that theammoniacal-nitrogen (NH4+-N) and total nitrogen (TN) removal efficiencies were in the range from 74.7% to 93.1%... Autori: Wei Li, Xiaoxia Yang, Xinchao Guo, Yongzhe Yang ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25946
AEROBIC SLUDGE GRANULATION FOR PARTIAL NITRIFICATION OF AMMONIA-RICH INORGANIC WASTEWATER
Environmental Engineering and Management Journal › Vol. 12 › Nr. 7 AbstractPartial nitrification for the biological nitrogen removal (BNR) via nitrite has recently gained interest for treating high-strengthammonium wastewater with low organic matter content. However, stability of partial nitrification is still a challenge in activatedsludge system. In the present study, the technique of aerobic granulation was developed to produce granules for stable nitritation,treating ammonia-rich inorganic influent with 400 mg NH4+-N/L. The morphology, physical properties, ... Autori: An-Jie Li, Xiang-Chun Quan, Xiao-Yan Li, Zhi-Feng Yang ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25947
ADSORPTION OF HEXACHLOROCYCLOHEXANE BY RAW AND SURFACTANT MODIFIED MEERSCHAUM
Environmental Engineering and Management Journal › Vol. 12 › Nr. 7 AbstractThe adsorption of hexachlorocyclohexane (HCH) by modified meerschaum was studied. The comparison of the meerschaummodified by anion and cation surfactant was conducted to explore their effect on HCH adsorption. The results showed that theabsorbability of HCH by the CTMAB-M (cetyltrimethylammonium bromide-modified) is better than that of SAS-M (sodiumdodecyl sulphonate-modified) because the CTMAB-M has fluffier fibers structure. The addition of amount of adsorbents shouldimprove the adsor... Autori: Chanjuan Gao, Shengke Yang, Wenke Wang, Yaqian Zhao, Yue Zhao ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25948
ADSORPTION OF PHOSPHATE FROM AQUEOUS SOLUTIONS BY THERMALLY MODIFIED PALYGORSKITE
Environmental Engineering and Management Journal › Vol. 12 › Nr. 7 AbstractIn this study, palygorskite clay calcinated at different temperatures from 200 to 900 °C was used as adsorbent to removephosphate from aqueous solutions. The crystal structure and the surface property of the thermally modified material wasinvestigated to determinate the relationship between the adsorption capacity of the adsorbent and the changes of the crystalstructure and surface property. The results indicate that palygorskite clay calcinated at 700 °C had the highest adsorptioncapaci... Autori: Chengsong Qing, Chengzhu Zhu, Dong Chen, Jiayuan Wang, Jingjing Xie, Tianhuhu Chen, Xinmin Zhan ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25949
TREATMENT OF AN ALKALINE BUTYL RUBBER WASTEWATER BY THE PROCESS OF COAGULATION AND FLOCCULATION - HYDROLYSIS ACIDIFICATION - BIOLOGICAL CONTACT OXIDATION - MBR
Environmental Engineering and Management Journal › Vol. 12 › Nr. 7 AbstractWastewater from butyl rubber production is causing an increasing environmental problem due to its large quantity and complexquality. In this paper, two types of wastewaters generated from rubber synthesis, i.e. alkaline wastewater (AW) and cleaning andflushing wastewater (CFW), were investigated. Coagulation and flocculation were firstly applied to remove suspended solids(SS) from the AW. By single factor experiment, the optimum operational conditions were obtained as pH 8, PAC dosage 40... Autori: Lujun Chen, Rui Liu, Wei Li, Wei Zheng, Yan Zhang, Ying Li ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25950
STRUCTURAL EVOLUTION OF HEAT-TREATED COLLOIDAL PYRITE UNDER INERT ATMOSPHERE AND ITS APPLICATION FOR THE REMOVAL OF Cu(II) ION FROM WASTEWATER
Environmental Engineering and Management Journal › Vol. 12 › Nr. 7 AbstractIn this paper, we report a study on structural evolution, magnetic susceptibility and arsenic content of colloidal pyrite fromXinqiao deposits in Tongling, Anhui Province, China. The pyrite was treated under N2 atmosphere and charaterized with X-raypowder diffraction (XRD), field emission scanning electron microscopy (FE-SEM), magnetic susceptibility analysis, and atomicfluorescence spectroscopy (AFS). We observed that heating of colloidal pyrite in N2 atomosphere did not change the crys... Autori: Dong Chen, Ping Li, Tianhu Chen, Xiao Zhu, Yadan Shi, Yan Yang ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25951
FUNCTIONALIZATION AND IMMOBILIZATION OF WHOLE CELL BIOREPORTERS FOR THE DETECTION OF ENVIRONMENTAL CONTAMINATION
Environmental Engineering and Management Journal › Vol. 12 › Nr. 7 AbstractThe detection of environmental pollutants has challenged conventional chemical analysis for the rapid estimation of thebioavailability and toxicity of the contamination impact on human health and ecosystems. Magnetic nanoparticles (MNPs)functionalization as bioreporters can enhance the ability for biosensing in complex contaminated samples such as soils, and theimmobilization of bioreporters will promote the detection of gas and online monitoring. In this study, Acinetobacter baylyi ADP1... Autori: Aizhong Ding, Cheng Chen, Dayi Zhang, Musen Duan, Steven F. Thornton, Wei E. Huang, Yanjun Luo ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25952
COMPOSITE VEGETABLE DEGRADATION AND ELECTRICITY GENERATION IN MICROBIAL FUEL CELL WITH ULTRASONIC PRETREATMENT
Environmental Engineering and Management Journal › Vol. 12 › Nr. 7 AbstractVegetable waste was used as the fuel of a two-chamber microbial fuel cell (MFC) for simultaneous power recovery and wastedegradation. Effects of ultrasonic pretreatment, organic loadings, anolyte pH adjustment on the MFC performance wereinvestigated. Results showed that higher power generation and organic compounds removal efficiency were achieved in theMFCs with the vegetable waste pretreated with ultrasonication at >1.0W/mL compared to the un-pretreated control. A maximumvoltage of ... Autori: Kun Tao, Xiangchun Quan, Yanping Quan ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25953
OCCURRENCE AND RISK ASSESSMENT OF ESTROGENS AND ANTIINFLAMMATORIES IN BAIYANGDIAN LAKE, NORTH CHINA
Environmental Engineering and Management Journal › Vol. 12 › Nr. 7 AbstractEstrogens and anti-inflammatories can pose adverse effects on human health and wildlife. This paper investigated four estrogens(estrone, E1; 17β-estradiol, E2; estriol, E3; 17α-ethynylestradiol, EE2) and three anti-inflammatories (ibuprofen, ketoprofen andnaproxen) by solid-phase extraction (SPE) and liquid chromatography tandem mass spectrometry (LC-MS/MS) in BaiyangdianLake during the dry (April) and wet seasons (September). These compounds were mostly detected at low levels ... Autori: Jianghong Shi, Jinling Cao, Ting Bo, Xiaowei Liu, Yingxia Li ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25955
APPLICATION OF GIS IN REGIONAL ECOLOGICAL RISK ASSESSMENT OF WATER RESOURCES
Environmental Engineering and Management Journal › Vol. 12 › Nr. 7 AbstractThe regional ecological risk assessment of water resources has spatial, nonlinear and stochastic characteristics. GIS technologycan handle large volumes of spatial information, conduct spatial analysis and spatial data management operations. It visuallydisplays the distribution trend of environmental factors and the relationship between topology and regional water ecological riskpattern. This paper presents the five stages of the application of GIS in the regional ecological assessment o... Autori: Lin Gang Wang, Ning Lian Wang, Xiao BoWu, Ya Qian Zhao, Yin Ge Liu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25958
SOLVING WATER RESOURCES ALLOCATION PROBLEMS USING HEURISTIC-BASED METHODS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 7 AbstractDue to rapid growth in both population and economic development in China, water demand is increasing dramatically andChina is facing more and more severe water scarcity problems. Thus competitions for water (between uses, users and regions) areincreasing which make water use efficiency an important issue in China, together with the uneven spatial and temporaldistribution of water, all of which drive the Chinese government and water planners to find the optimal water resource allocationpl... Autori: Adrian T. McDonald, Linda See, Martin Clarke, Yanan Jiang ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25961
ECOLOGICAL IMPACTS INDUCED BY GROUNDWATER AND THEIR THRESHOLDS IN THE ARID AREAS IN NORTHWEST CHINA
Environmental Engineering and Management Journal › Vol. 12 › Nr. 7 AbstractBased on the field survey, this paper analyzes the relationship between groundwater and ecological environment in arid andsemiarid areas in northwest China. Groundwater in the arid and semiarid areas is a natural resource with economic and ecologicalvalues. The concept of the ecological value of groundwater is firstly presented. This ecological value can be reflected in fouraspects: (1) the maintenance of base flow in rivers and areas of lakes and wetland; (2) the supply of physiological... Autori: Donghui Cheng, Jinling Kong, Lei Duan, Wenke Wang, Zeyuan Yang, Zhoufeng Wang ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25962
ESTIMATING AND MODELLING THE SLUDGE EXCESS DISCHARGE IN WASTEWATER TREATMENT PLANTS IN CHINA
Environmental Engineering and Management Journal › Vol. 12 › Nr. 7 AbstractA rapid increase of wastewater treatment plants (WWTPs) has made the disposal of excess sludge from WWTPs a seriousproblem. In order to enhance the management of sludge, both development of sludge reduction technologies and sludgeevaluation system are of great importance. Based on the survey data from 696 plants in China in 2009, an empirical model wasdeveloped to simulate the production and discharge of excess sludge, which considered influent, temperature, Chemical OxygenDemand (COD), ... Autori: Chengwen Wang, Tao Xie ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25963
CHARACTERISTICS AND FEASIBILITY STUDY OF SEWAGE SLUDGE FOR LANDSCAPING APPLICATION IN XI’AN, CHINA
Environmental Engineering and Management Journal › Vol. 12 › Nr. 7 AbstractBy investigating the basic physicochemical characteristics, nutrients (nitrogen, phosphorus and potassium) and heavy metalconcentrations of the excess sludges from four wastewater treatment plant (WWTP) in Xi’an city, the feasibility of applyingsewage sludge to landscaping in Xi'an was studied. The results showed that the basic physicochemical properties of sewagesludge satisfy the requirement of most plants growth. The sewage sludges are rich of organisms, nitrogen and phosphorus, butre... Autori: Bohan Yin, Qin Zheng, Rixia Zhang, Sheping Wang, Xinan Liu, Zhengliang Yang ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25964
A SPECIAL ISSUE ON RECENT ADVANCES IN WATER RESOURCE MANAGEMENT AND POLLUTION CONTROL: WITH SPECIAL FOCUS ON CHINA
Environmental Engineering and Management Journal › Vol. 12 › Nr. 7 A fast economic development in China over thelast three decades has lifted hundreds of millions ofpeople out of poverty. However, an annual GDPincrease of over 10% due to the large scale industrialactivities and fast urbanization has released substantialamounts of pollutants into the environment and exertedtremendous pressure on local ecosystems. Although alarge amount of investment has been made by theChinese government and a series of efforts have beenmade by the environmental regulators, scie... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25965
RADIATION-INDUCED DECOMPOSITION AND POLYMERIZATION OF POLYVINYL ALCOHOL IN AQUEOUS SOLUTIONS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 7 AbstractPolyvinyl alcohol (PVA) is a typical refractory organic pollutant with low biodegradability and high molecular weight. Thispaper presents data on the radiolysis of PVA in aqueous solutions by using ionizing radiation. Response surface methodologywith Box-Benhken design of experiment was applied to analyze the interactions among initial concentration of PVA, absorbeddose, and initial pH of aqueous solutions on PVA removal efficiency. 9.4-89.4% PVA was removed based on differentcombination... Autori: Jianlong Wang, Jinping Tian, Lujun Chen, Shijun He, Weihua Sun ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25967
EDITORIAL A SPECIAL ISSUE ON PROGRESS IN ENVIRONMENTAL ENGINEERING, BIOTECHNOLOGY AND MANAGEMENT IN THE FRAME OF KNOWLEDGE-BASED SUSTAINABLE ECONOMY
Environmental Engineering and Management Journal › Vol. 12 › Nr. 8 “The Exploratory Workshop „Progress inEnvironmental Engineering, Biotechnology andManagement in The Frame of Knowledge-BasedSustainable Economy” took place in the contextwhen worldwide research shows that the currentindustrial system supports a population that useresources and generates waste, consuming the Earth'ssupply, but who’s biocapacity is far outweighed bythe increased demand of products for a developmentsystem that often works on unsustainable bases.Today’s challenge is the integration ... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25969
ENGINEERING CHALLENGES IN ADVANCED WASTEWATER TREATMENT
Environmental Engineering and Management Journal › Vol. 12 › Nr. 8 AbstractWastewater streams and particularly industrial effluents tend to increase in volumes and to get more complex in terms ofpollution. Nevertheless, nowadays the focus is directed towards recycling or reuse of treated wastewater so as to close the wateruse loop. Advanced wastewater treatment allows these possible applications by achieving good quality effluent to suit the newpurposes, but the implementation of this treatment stage is a difficult task. This study gives an example on how to ap... Autori: , Daniela Cailean, Florina Ungureanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25971
VOLUNTARY AGREEMENTS AS A WAY TO STIMULATE INDUSTRIAL ENVIRONMENTAL MANAGEMENT AND THEIR CONDITIONS FOR SUCCESS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 8 AbstractNumerous governments have adopted innovative policy instruments to deal with important environmental policy challenges.Various forms of negotiated instruments may offer the potential to improve on environmental performance beyond whatregulation alone can accomplish. Dutch covenants, which represent negotiated agreements with sectors of industry as targets ofbehavioral change in terms of mitigation of pollution, waste minimization and sustainable products and processes, provide auseful sa... Autori: , Kris Lulofs, Laura Franco, Theo de Bruijn, Yanyan Xue ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25972
A TECHNO-ECONOMIC ANALYSIS OF BIODIESEL PRODUCTION FROM MICROALGAE
Environmental Engineering and Management Journal › Vol. 12 › Nr. 8 AbstractThe preliminary assessment of a cost-effective flow-sheet for the production of biodiesel from microalgae lipid fraction wascarried out. The study was based on approximated cost-estimation methods integrated with the simulation software Aspen Plus®.Several scenarios were investigated to compare costs regarding the main steps of the biodiesel production process. Ranges ofinput variables from downstream literature and experimental data were used to simulate the sections that define concret... Autori: Antonio Marzocchella, Giuseppe Olivieri, Piero Salatino, Teresa Guida ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25973
ASPECTS ON POLYMER-SOLVENT EQUILIBRIUM AND DIFFUSION IN POLYMERIC MEMBRANES
Environmental Engineering and Management Journal › Vol. 12 › Nr. 8 AbstractThe transport of gases and solvents in polymeric membranes is an important phenomenon with many technical applications, suchas the mixture separation using polymeric membranes, the polymeric membrane preparation, the polymer devolatilization and theselection of appropriate polymeric membranes for a certain process. In most membrane separation operations and manufacturing,equilibrium and diffusion data are required.Useful information on equilibrium and diffusion can be obtained from the s... Autori: Ciprian Constantin Negoescu, Eugenia Teodora Iacob Tudose, Ioan Mămăligă, Nicoleta Bunduc ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25975
CO2 CAPTURE BY BIOMIMETIC ADSORPTION: ENZYME MEDIATED CO2 ABSORPTION FOR POST-COMBUSTION CARBON SEQUESTRATION AND STORAGE PROCESS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 8 AbstractThe huge emission of greenhouse gases from fossil-fuelled power plants is emphasizing the need for efficient Carbon Captureand Storage (CCS) technologies. The biomimetic CO2 absorption in aqueous solutions has been recently investigated as apromising innovative alternative for post-combustion CCS. The carbonic anhydrase (CA) - a broad group of ubiquitous enzymes– may catalyse the CO2 hydration reaction and then to promote CO2 absorption rate into aqueous solutions. Nevertheless theresear... Autori: Antonio Marzocchella, Giuseppe Olivieri, Maria Elena Russo, Piero Salatino ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25976
INTEGRATED NETWORK OF CONTINUOUS REACTORS FOR THE DECONTAMINATION OF GASEOUS STREAMS IN HETEROGENEOUS CATALYTIC GAS-LIQUID-SOLID SYSTEMS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 8 AbstractIn this paper integrated network of continuous reactors for the decontamination of gaseous flows in heterogeneouscatalytic gas-liquid-solid – also applicable for bioremediation systems is investigated. For this purpose, duringprocess integration we have identified strategies to develop an optimal system for a variety of well-definedrequirements and to discover ways to ensure cost efficiency to achieve the requirements of sustainable industry in theframe of knowledge-based sustainable eco... Autori: Maria Gavrilescu, Oana Marlena Penciu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25977
AWARENESS AND ENVIRONMENTAL ATTITUDE IN THE CONTEXT SUSTAINABLE DEVELOPMENT WITHIN A KNOWLEDGE-BASED SOCIETY
Environmental Engineering and Management Journal › Vol. 12 › Nr. 8 AbstractSince contemporary economical development trends are not sustainable, and given the fact that public involvement, educationand training are key to a society that aims toward sustainability, it is obvious that the role of education is to trigger and developchanges in the individual’s values system, behavioral patterns, skills, and attitudes. Providing benchmarks in establishing ageneral framework on education for sustainable development represents a key feature, thus making it possible to... Autori: Carmen Cătălina Ioan, Maria Ileana Carcea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25979
POLYMERIC WASTES FROM AUTOMOTIVES AS SECOND RAW MATERIALS FOR LARGE SCALE PRODUCTS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 8 AbstractEfficient large-scale recycling of polymeric wastes for automotives is of increased interest from ecologic and economic point ofview and represents an important goal for the car recycling industry. One alternative is to develop novel composite materials,relying on waste car parts, for indoor or outdoor large-scale applications, without using small molecular plasticizer or otheradditives but insuring a good compatibility for large percentages of thermoset plastics in the composite. Previo... Autori: Anca Duta, Cristina Cazan, Dana Perniu, Mihaela Cosnita ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25982
INSTRUMENTS FOR INTEGRATED WATER RESOURCES MANAGEMENT: WATER QUALITY MODELING FOR SUSTAINABLE WASTEWATER MANAGEMENT
Environmental Engineering and Management Journal › Vol. 12 › Nr. 8 AbstractThis study presents the development and use of a hydraulic-coupled water quality model for the simulation of BiochemicalOxygen Demand (BOD) concentrations in the Bahlui River, a small river located in northeastern Romania. This river experiencesthe typical pollution problems for many Romanian water bodies: heavy pollution from both diffuse and point sources, lowconnectivity to wastewater systems in rural areas and moderate removal of pollutants in municipal wastewater treatment plants.Th... Autori: , Claudia Cojocariu, Denie C.M. Augustijn, George Bârjoveanu, Ioan Crăciun ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25985
NEW TRENDS IN COMMUNAL WASTE MANAGEMENT AT THE REGIONAL LEVEL: WASTE TREATMENT PLANTS IN HUNGARY AND PRACTICAL APPLICATIONS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 8 AbstractThe waste management is increasingly important from the point of view of our future and to keep our environment safe for thefuture generations to come. The European Union sets up strategic objectives and goals on priorities and actions in the field ofwaste management. The Waste Framework Directive 2008/98/EC stipulates and sets forth the goals and actions for the nextdecades. The paper deals with the European strategy and the Hungarian practices with special focus on the North-Balatoncom... Autori: Ákos Rédey, Attila Sarkady, László Dióssy, Róbert Kurdi, Tatiana Yuzhakova ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25986
MUNICIPAL SOLID WASTE MANAGEMENT AND TREATMENT OF EFFLUENTS RESULTING FROM THEIR LANDFILLING
Environmental Engineering and Management Journal › Vol. 12 › Nr. 8 AbstractEU policy on waste management stresses the importance of an integrated approach to waste management, which includesconstruction of waste disposal facilities with prevention of waste generation and recycling, in line with management hierarchy:prevention of waste and its negative impacts; recovery of waste through recycling, reuse, safe final disposal of waste where thereis no possibility of recovery.This paper address the issue of municipal waste management and the impacts generated into ... Autori: Ana-Maria Şchiopu, Cristina Ghinea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25987
DEVELOPMENT OF AN EXPERT SYSTEM FOR SURFACE WATER QUALITY MONITORING IN THE CONTEXT OF SUSTAINABLE MANAGEMENT OF WATER RESOURCES
Environmental Engineering and Management Journal › Vol. 12 › Nr. 8 AbstractThe paper presents and discusses some aspects concerning the development of an expert system designed for surface watermonitoring in the context of sustainable management of water resources in Romania and neighboring countries. Technicalconsiderations, which are worthy to be included in the analysis of such kind of systems, are addressed: the system structure(number, type and location of hydrometric stations), number and type of measured indicators, transducers and sensors used formeasur... Autori: Anatolie Iavorschi, B. S. Nanda Kumar, Victor Sontea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25988
EDITORIAL - A SPECIAL ISSUE DEDICATED TO - ENVIRONMENTAL CONCERNS ON ELECTROMAGNETIC COMPATIBILITY AND ENGINEERING IN MEDICINE AND BIOLOGY
Environmental Engineering and Management Journal › Vol. 12 › Nr. 6 This special issue of EnvironmentalEngineering and Management Journal is dedicated tointerdisciplinary research and discusses multipleresults addressing environmental issues inElectromagnetic Compatibility (EMC) andEngineering in Medicine and Biology (EMB) areas.Some of the most significant researchdirections considered in this issue entail theelectromagnetic pollution together with a survey ofelectromagnetic environment in order to analyze andquantify the biological and health effects ofelectro... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25990
MODELING DEVICES SENSITIVITY ASSOCIATED TO THE SUSCEPTIBILITY OF ESD PHENOMENA
Environmental Engineering and Management Journal › Vol. 12 › Nr. 6 AbstractThe electrostatic discharge (ESD) event is a severe source of interference that can produce damages in any electronic system. Afull-body of an ESD generator is modeled using the Cadence IC 5.3 package software in order to reproduce the referencedischarge current assured by the standard specifications. The factors that introduce electromagnetic radiations into the systemshave also been investigated. Several tests based on proper matches between the parameters of the antenna were computed ... Autori: Alexandru Salceanu, Ana-Maria Nicuta, Oana Beniuga, Paul Bicleanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25993
MITIGATION OF POWER FREQUENCY MAGNETIC FIELD NEARBY POWER LINES USING RECTANGULAR FRAMES
Environmental Engineering and Management Journal › Vol. 12 › Nr. 6 AbstractThe paper outlines a technique to mitigate the power frequency magnetic field produced in its vicinity by the transport anddistribution power lines. The technique consists in introduction below the line conductors of a passive loop of rectangular shape.Due to the induced currents in the rectangular frame, the total magnetic field below this structure is significantly reduced. Themethod’s efficiency depends by the line conductor’s configuration and also by the dimensions of the frame. The... Autori: Călin Munteanu, Emil Merdan, Ioan T. Pop, Sorin Deleanu, Vasile Topa ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25994
APPLICATION OF WINDINGS SHIFTING FOR THE OPTIMIZATION OF PLANAR STRUCTURES
Environmental Engineering and Management Journal › Vol. 12 › Nr. 6 AbstractThe use of planar electromagnetic technology led to the improvement of high frequency characteristics of the structures and thedecrease of their size and profile, which made them easier to integrate in different devices. In order to improve these planarstructures, it is known that the parasitic capacitance (EPC) must be decreased. Another method to achieve a better functionality isto increase or decrease the high frequency losses, according to their use. Because the previous studies were... Autori: Adina Racasan, Calin Munteanu, Claudia Hebedean, Claudia Pacurar ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25996
FLOW PATTERNS IN THE MAGNETIC NANOFLUID CORE OF A MINIATURE PLANAR SPIRAL TRANSFORMER
Environmental Engineering and Management Journal › Vol. 12 › Nr. 6 AbstractThis paper analyses mathematical models and numerical simulation results for a notional miniature, planar, spiral transformer(MPST) fabricated in MEMS technology, for galvanic separation, proposed to equip an electric harvesting device (EHD). Twotypes of core – ferrite and (partially) magnetic nanofluid – are considered. We found that magnetization body forces occur in thesuper-paramagnetic nanofluid core and they result in complex, steady state flows consisting of fully 3D recirculation... Autori: Alexandru Mihail Morega, Jean Bogdan Dumitru, Lucian Pîslaru-Dănescu, Mihaela Morega ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25998
IMPLEMENTING EUROPEAN METHODOLOGIES TO ASSESS ENVIRONMENTAL ELECTROMAGNETIC FIELD LEVELS: SOME DIFFICULTIES AND SOLUTIONS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 6 AbstractDuring the last decade, European methodologies on electromagnetic field measurement and human exposure assessment havebeen extensively developed and improved. At present, there is a large number of complex technical standards dedicated to variousexposure situations. The implementation of the new methodology in the national practice might be difficult, expensive and timeconsuming. Taking into account the methodological change, we analyzed some practical difficulties that might occur and w... Autori: Cristian Goiceanu, Eugenia Dănulescu, Răzvan Dănulescu, Raluca Dănulescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25999
REPRESENTATION OF 3D ATMOSPHERIC DATA USING A MULTI-STAGE VISUALIZATION PIPELINE
Environmental Engineering and Management Journal › Vol. 12 › Nr. 6 AbstractThe representation of relevant information from data generated through atmospheric imaging is of substantial importance toenvironmental sciences, meteorology, as well as in weather hazard predictive models for disaster prevention. As the techniquesfor the acquisition of such data have progressed and grown in complexity, so have the visualization algorithms required to processthe related data and to produce images or animations of the underlying information. To this extent, we present a g... Autori: Marius Gavrilescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26001
REDUCTION OF POWER LINE INTERFERENCES FROM ELECTROCARDIOGRAPHIC SIGNALS BY APPLYING ADAPTIVE FILTERING ON FIELD PROGRAMMABLE GATE ARRAY CIRCUITS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 6 AbstractThe paper presents an extended implementation of an adaptive filter structure for electrocardiographic (ECG) signals denoisingwhich is implemented on Field Programmable Gate Array (FPGA) circuit. The proposed FPGA adaptive filter structure can beused to clean in real-time the ECG signals from power line interferences. In order to update the adaptive filter weights, the LeastMean Square (LMS) algorithm is used. The discrete forms of the filter structure and adaptive algorithm are presente... Autori: Cristian Győző Haba, Ioan Tudosa, Narcis Adochiei, Valeriu David ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26002
WIRELESS MONITORING SYSTEM FOR PATIENTS HAVING CARDIAC PACEMAKERS WITH ATRIAL FIBRILLATION DETECTORS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 6 AbstractThis paper describes an integrated system of wireless temporary pacemakers for remote monitoring of patients suffering fromcardiac arrhythmias, especially atrial fibrillation. The system is built around a low power cardiac pacemaker with wireless datatransmission capability, used for patient monitoring into a limited area. The proposed system is designed to be used in emergencysituations, in healthcare institutes, helping to keep the patient’s heartbeat stable. Each wireless pacemaker at... Autori: Cristian Rotariu, Hariton Costin ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26004
ANALYSIS OF BRAIN ACTIVITY IN THE CASE OF MAGNETIC FIELD EXPOSURE
Environmental Engineering and Management Journal › Vol. 12 › Nr. 6 AbstractThis paper presents some results of the brain electrical activity’s analysis in case of the magnetic stimulation. It was recorded andanalyzed the electroencephalography (EEG) signal during magnetotherapy procedures in abdominal region, considering this factlike as a possible exposure of subject at magnetic field. The recordings of EEG signals are performed on 13 healthy volunteers inthree conditions (before, during and after magnetic stimulation), using three types of sinusoidal pulses. ... Autori: Călin Corciovă, Doru Andriţoi, Mariana Ciorap, Radu Ciorap, Valeriu David ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26005
IDENTIFICATION OF PSYCHOLOGICAL STRESS BY ANALYZING ELECTROCARDIOGRAPHIC SIGNAL
Environmental Engineering and Management Journal › Vol. 12 › Nr. 6 AbstractIt is already demonstrated that mental or psychological stress can affect human health, since it is a major risk factors for numerouscurrent diseases such as: high blood pressure, congestive heart failure, coronary diseases, stroke, causing often sudden death.These diseases are particularly dangerous in the case of car drivers, since they have to make accurate and fast decisions evenunder stress condition. Frequently, the stress can be detected by different methods with various degrees o... Autori: Alexandru Păsărică, Cristian Rotariu, Hariton Costin ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26008
LUNG CANCER RISK INDUCED BY RESIDENTIAL RADON IN CLUJ AND ALBA COUNTIES, ROMANIA
Environmental Engineering and Management Journal › Vol. 12 › Nr. 6 AbstractA case-control study was conducted in two Romanian counties (Alba and Cluj) in order to investigate lung cancer risk due toresidential radon exposure. Two hundred and forty-one subjects were included, of which 104 cases and 137 controls. Residentialradon concentrations were monitored using CR-39 track detectors, exposed over a period of at least 6 months. The odds ratioswere estimated by using multivariable logistic regression adjusted for age, sex, smoking status, education and family h... Autori: Alexandra Cucoş Dinu, Constantin Cosma, Dan Rădulescu, Doina Todea, Dorin Iancu, Ionel Papuc, Loredana Roşca, Mircea Rişteiu, Tiberius Dicu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26011
ASSESSMENT OF SYNERGIC REGULATORY ACTIONS OF SPRUCE BARK EXTRACT AND DEUTERIUM DEPLETED WATER ON MAIZE (Zea mays L.) CROPS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 6 AbstractThe aim of this study was to evaluate the effect of polyphenolic extract and deuterium depleted water (DDW) as bioregulators inmaize (Zea mays L.) plant cultivation. The aqueous extract obtained from spruce bark (two levels of concentration), pure DDWand DDW in combination with spruce extract were used. The test solutions were applied by spraying and the maize plant growthand alelopatic effect on the development were studied. The following specific plants parameters were monitored: growt... Autori: Corneliu Tănase, Irina Volf, Valentin I. Popa ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26012
Environmental Engineering and Management Journal - Vol 12, No 6
Environmental Engineering and Management Journal › Vol. 12 › Nr. 6 • STUDIES ON HEAT RECOVERY FROM CELLULOSIC TEXTILES FINISHING WASTEWATER • ASSESSMENT OF SYNERGIC REGULATORY ACTIONS OF SPRUCE BARK EXTRACT AND DEUTERIUM DEPLETED WATER ON MAIZE (Zea mays L.) CROPS • LUNG CANCER RISK INDUCED BY RESIDENTIAL RADON IN CLUJ AND ALBA COUNTIES, ROMANIA • A CLEAR SKY IRRADIATION ASSESSMENT USING THE ESRA MODEL AND SRTM DATABASE • ENVIRONMENTAL FACTORS ASSOCIATED WITH DYSPHONIA IN PROFESSIONAL VOICE USERS ... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26014
EDITORIAL - A SPECIAL ISSUE DEDICATED TO ENVIRONMENTAL RESEARCH AND TECHNOLOGY ECOIMPULS 2012 INTERNATIONAL CONFERENCE, October 25-26, Timisoara, Romania
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 The first edition of the International Conference„ECOIMPULS 2012- Environmental Research andTechnology” plans to open a conference seriesdedicated exclusively environmental issues. Thescientific topics are devoted to the on-going research onenvironmental topics regarding: „Environment – apolitical, economic and social responsibility”,„Water in a changing world”, „ZERO – waste cities”and „ Energy – beyond the conventional”.This scientific event aims to bring togetherprofessionals, academics, scie... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26015
EMBANKMENT FAILURE MODELING USING THE HR BREACH MODEL
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractThe HR BREACH model is a physically based numerical model for the simulation of breach initiation and formation throughembankment dams, dykes, and flood embankments. The model is used for the analysis of homogenous as well ascomposite/zoned embankments. Simulation can also include the effect of surface protection such as grass or rock blocks. Twobreach failure modes are available: failure by overtopping and failure by piping. Breach growth can proceed through surfaceerosion or head-cut e... Autori: Andreja Jonoski, Ioana Popescu, Mark Morris, Mohamed Hassan, Tseganeh Gichamo ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26017
ANALYTICS FOR SUPPORTING URBAN WATER MANAGEMENT
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractWater distribution networks are complex systems that require innovative technological solutions enabling an integrated andrational water resource management. This paper presents the application of data analytics approaches on flow and pressure data,continuously measured at crucial points of the network, for improving efficiency of leak localization. The general goal is toreduce time and costs for physical check and consequent rehabilitation activities.Although the general benefits provid... Autori: Antonio Candelieri, Enza Messina, Francesco Archetti ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26018
ENERGY RECOVERY FROM SLUDGE WITH LOW ORGANIC LOADS RESULTED FROM WASTEWATER TREATMENT PLANTS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractThe developing of the infrastructure for wastewater collection and treatment in Romania is leading more and more to theproduction of huge quantities of activated sludge, as direct result of the application of state of wastewater treatment. The rapidand rational development of a national policy for management of activated on short, medium and long term has emerged as anecessity, and must be implemented urgently.The EU 27 countries consider environmental management of activated sludge as a... Autori: Ilie Vlaicu, Ioan Neamt, Ioana Ionel, Mihail Reinhold Wächter ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26019
SOLID WASTE MANAGEMENT IN ROMANIA: CURRENT AND FUTURE ISSUES
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractWaste management includes all activities of collection, transport, treatment, recovery and disposal of waste, includingsupervising of such operations. The framework law that regulates waste management activities in Romania is Law no. 27/2007,approving Government Emergency Ordinance no. 61/2006, amending and supplementing Government Emergency Ordinance no.78/2000 on waste regime. This legislation sets the responsibilities for waste management from generation to disposal, thepriorities in ... Autori: Constantin Mircea Orlescu, Ioana Alina Costescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26020
DSA ELECTRODES FOR TREATING PHARMACEUTICAL EFFLUENTS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractIn the last years many papers have reported about the occurrence of the pharmaceuticals in the surface waters and theirundesirable effects upon the aquatic life. Most of pharmaceuticals pass through the wastewater treatment plants unchangedbecause they are biorefractory compounds and as a result they enter the water bodies. Therefore, it is necessary to improve thebiodegradability of pharmaceuticals effluents (PhEs) before their discharge in the sewerage systems. The aim of this paper wa... Autori: Carmen Lazău, Florica Manea, Monica Ihos ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26021
COMBINED CATALYTIC OXIDATION AND ADSORPTION OF PRIORITY ORGANIC POLLUTANTS FOR WASTEWATER RECYCLING
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractThe increased concentrations of priority pollutants in wastewaters have imposed the completion of conventional treatment withadvanced treatment stages (such as catalytic oxidation, membrane processes, adsorption, ion exchange, etc.) for their removal bychemical degradation and/or physical separation.In this study, 4-chlorophenol (4-CP) is proposed as model-pollutant for the priority organic pollutants present in syntheticwastewaters and several processes which can act as advanced treatme... Autori: Carmen Teodosiu, Corina Petronela Musteret, Daniela Arsene, Daniela Cailean, George Bârjoveanu, Petru Apopei, Roxana Elena Apreutesei ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26022
REMOVAL OF TWO INDUSTRIAL DYES FROM AQUEOUS SOLUTIONS USING HYDROTALCITE-LIKE ANIONIC CLAYS AND THEIR DERIVED MIXED OXIDES AS HIGHLY EFFICIENT PHOTOCATALYSTS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractMultifunctional materials based on iron substituted anionic clays and their derived mixed oxides owning specific porousproperties and textural characteristics are synthesized, characterized and tested as photocatalysts in the process of the azo-dyesdegradation from aqueous solutions. The features of X-ray diffraction patterns point out the modification of the lattice parameterswhen Fe3+ is substituted Al3+ in the brucite like layer. N2 adsorption-desorption analysis reveals specific poro... Autori: Carmen Gherasim, Gabriela Carjă, Magda Puşcaşu, Mihaela Bîrsanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26024
COPPER IMPREGNATED ACTIVATED CARBON FOR THE TREATMENT OF SULPFUROUS WATERS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractThis paper deals with the experimental investigation related to removal of hydrogen sulfide from simulated groundwater byadsorption/oxidation on activated carbons. Carbonaceous adsorbents were synthesized from peach stones by physical-chemicalactivation method and modified by oxidation following impregnation with Cu2+ by ion-exchange method. Obtained carbonaceousadsorbents were characterized by specific surface area and micropore volume. Surface chemistry properties were evaluated usingB... Autori: , , Vasile Rusu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26026
BENTONITE SYNTHETIC WATER BEHAVIOR DURING COAGULATION-FLOCCULATION PROCESS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractThe aim of this work is to characterize the flocculation process of a bentonite synthetic suspension with characteristics close toBega River from Timisoara, Romania. The time stability of the synthetic suspension was firstly investigated. After a few days ofcontinuous mixing a stable suspension was reached, stability being confirmed by monitoring the main physicochemicalparameters (pH, temperature, turbidity, dissolved organic carbon and initial particle size). In order to determine the ... Autori: Alain Liné, Cosmina-Mariana Militaru, Ligia Barna, Teodor Todinca ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26027
MAGNETIC FLUID EQUIPMENT FOR SORTING SECONDARY POLYOLEFINS FROM WASTE
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractThe paper presents the research made on the FP7 project „Magnetic Sorting and Ultrasound Sensor Technologies for Productionof High Purity Secondary Polyolefins from Waste” in order to develop a magnetic fluid equipment for sorting of polypropylene(PP) and polyethylene (PE) from polymers mixed waste streams. Because both PP and PE float in water, it is difficult to separateone from the other. The paper presents the principles of inverse magnetic density separation process and the results ... Autori: Bin Hu, Francesco Di Maio, Guillaume Houzeaux, Liana Baltes, Mircea Tierean, Peter Rem ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26028
KINETIC, EQUILIBRIUM AND THERMODYNAMIC STUDIES OF CESIUM REMOVAL FROM AQUEOUS SOLUTIONS USING AMBERJET UP1400 AND AMBERLITE IR120 RESINS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractThe performance of two cation exchanger resins, Amberjet UP1400 and Amberlite IR120 in the process of Cs(I) ions removalfrom aqueous solutions was examined. Batch experiments were carried out to determine the influence of several parameters(resin dosage, contact time, temperature and initial concentration of Cs(I) ions) on the removal process. The equilibrium wasreached after 60 min for Amberlite IR120 and after 120 min for Amberjet UP1400, with an overall adsorption performance of~97% f... Autori: Adina Negrea, Cornelia Muntean, Corneliu Mircea Davidescu, , Mihaela Ciopec, Petru Negrea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26032
UNMODIFIED/TIO2-MODIFIED CARBON NANOTUBES COMPOSITE ELECTRODES FOR PENTACHLOROPHENOL DETECTION FROM WATER
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractIn this work, cyclic voltammetry (CV) and differential-pulsed voltammetry (DPV) were used to detect pentachlorophenol (PCP)at two types of multi-walled carbon nanotubes (CNT)-based composite electrode, i.e., TiO2-modified-CNT-Epoxy (TiO2-CNTEpoxy)and CNT-Epoxy in 0.1 M sodium sulphate solution supporting electrolyte. The electrochemical behaviour of theelectrodes was investigated in the absence and presence of UV irradiation. A single oxidation peak at a potential value of about+1 V vers... Autori: , Ágnes Jakab, Aniela Pop, Cornelia Bandas, Florica Manea, Joop Schoonman, Rodica Pode ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26033
SYNTHESIS OF TITANIUM DIOXIDE WITH HYDROTHERMAL METHOD AND ANTIBACTERIAL ACTIVITY AGAINST E. coli
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractA comparative study regarding the shape, dimension and bactericidal activity of the undoped and Ag-doped TiO2 nanocrystalswas achieved. In this way, two hydrothermal methods, classical hydrothermal and microwave-assisted hydrothermal, was usedfor nanoparticles synthesis. The obtained materials were investigated by X-ray diffraction, DRUV-VIS spectroscopy, BET andSEM/EDX analysis. Antibacterial activity of undoped and Ag-doped TiO2 materials was tested on real water from Bega River.The be... Autori: Carmen Lazau, Corina Misca, Corina Orha, Cornelia Bandas, Sorin Olariu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26034
CHALLENGES FOR 2D WATER QUALITY MODELLING OF LAKE TAIHU IN CHINA
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractLake Taihu is a shallow, wind-driven lake where eutrophication is always a serious problem. The study presented hereininvestigates the effect of wind on the eutophication of the lake, by using a two-dimensional (2D) hydrodynamic model coupledwith a 2D water quality model. The 2D water quality model looks in particular at the water quality situation of Lake Taihu in theyear 2008 and predicts future changes in the algae bloom situation. The Delft3D modelling tool was used to build thehydro... Autori: Arthur Mynett, Chao Yue, Ioana Popescu, Leo Postma, Quan Pan ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26037
HUMAN HEALTH RELATED TO IODINE ENVIRONMENTAL OCCURRENCE AND ITS DEFICIENCY IN WATER AND FOOD
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractIodine is essential for the synthesis of thyroid hormones which are extremely important in the process of growth and developmentof human body. The effects of iodine deficiency implies thyroid enlargement (goiter) and others disturbances so called iodinedeficiency disorders (IDD). The iodine deficiency is an ancient but still existing problem with medical and environmentalconnotation. Soil and water from various regions worldwide are iodine deficient. This problem is aggravated by defores... Autori: Carmen Vulpoi, Cristina Cristea, Cristina Preda, Letitia Leustean, Maria Christina Ungureanu, Maria Gavrilescu, Voichita Mogos ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26038
HYBRID MATERIALS FOR THE REMOVAL OF ORGANIC COMPOUNDS FROM WATER
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractWater quality is an inportant concern for the ecosystem state from a particular region. Since the continuous urban and economicdevelopment induces a negative impact on entire hydrological cycle, this study investigates the water quality of a Romanian lake,located in the Surduc area - Timis County. This perimeter has undergone significant economic development in the past twodecades due to increased tourism potential and the number of holiday residences.We proposed hybrid materias for the ... Autori: Adina-Elena Segneanu, Cornelia Bandas, Florentina Cziple, Ioan Grozescu, Paula Sfîrloagă, Titus Slavici ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26040
Spirulina platensis AS BIOSORBENT OF ZINC IN WATER
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractZinc is an important metal for humans and the environment. Its intensive application in industry has led to water and soilcontamination. A lot of microorganisms both unicellular and multicellular can be applied for removal of metals from theenvironment. The process of zinc adsorption by cyanobacteria Spirulina platensis biomass was investigated. The concentrationsof 0.34 mM and 3.4 mM of ZnSO4·7H2O were used. The process of biosorption of zinc was studied during 1-hour experiment.To dete... Autori: Gheorghe Duca, Inga Zinicovscaia, Liliana Cepoi, Marina V. Frontasyeva, Sergey S. Pavlov, Svetlana F. Gundorina, Tatiana Chiriac, Valeriu Rudic ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26041
RESPONSE SURFACE METHODOLOGY APPLIED FOR THE OPTIMIZATION OF REACTIVE BLACK 5 DISCOLORATION IN A FENTON-LIKE PROCESS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractThere are many treatment methods used to remove color from textile wastewater, and Fenton oxidation, a well known AdvancedOxidation Process is one of the most efficient. Apart of Fe(II), other metal ions have been used as catalysts in Fenton’s Reagent,and Cu(II) proved to be a good alternative.In this study the effect of the concentration of dye, catalyst and hydrogen peroxide were studied and optimized for thediscoloration process of Reactive Black 5 using a Fenton-like process, H2O2/Cu... Autori: Andrei-Petru Bertea, Armand-Florin Bertea, Romen Butnaru ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26042
A NEW CONCEPTUAL FRAMEWORK FOR ENVIRONMENTAL DECISION BASED ON FRACTAL PHILOSOPHY
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractThe expression „environmental decision” cannot be explained or summarized by a simple formula containing all the ideasfocused on it.This paper aims to develop a conceptual framework for environmental decision (at organizations level) using fractal paradigmphilosophy in its construction, with the purpose to bring order and simplicity for this type of decision. The study is based on theanalysis of several environmental documentations (existing at the level of large organizations located in... Autori: Abdessamad Kobi, Christian Robledo, Ionuţ Viorel Herghiligiu, Mihaela Luminiţa Lupu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26043
WEB-BASED FLOOD INFORMATION SYSTEM: CASE STUDY OF SOMESUL MARE, ROMANIA
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractThis paper presents research into conceptualisation, design and implementation of an innovative web-based virtual environmentfor flood information sharing and dissemination. A system intended to be used by flood management authorities and potentiallyaffectedcitizens is demonstrated. Latest technological advances for collection, archiving and sharing of environmental data usingweb-based Spatial Data Infrastructure (SDI) are used for system implementation. Flood-related data and models are... Autori: Adrian Almoradie, Andreja Jonoski, Dimitri Solomatine, Florin Stoica, Ioana Popescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26045
EDITORIAL - A SPECIAL ISSUE DEDICATED TO ACHIEVEMENTS AND PROSPECTS IN HYDROTECHNICAL, GEODESY AND ENVIRONMENTAL ENGINEERING
Environmental Engineering and Management Journal › Vol. 12 › Nr. 4 In 2012, the Faculty of Hydrotechnics,Geodesy and Environmental Engineering of The"Gheorghe Asachi" Technical University of Iasi,Romania celebrated 50 years of education in the fieldof hydraulic engineering at the Polytechnic Instituteof Iasi.In 1948, in the same time with the EducationReform in Romania, in Galati, the Faculty ofHidrology was founded. At the same time, studentswho were attending the Rural EngineeringSpecialization in Bucharest were also transferred tothe new established Faculty.... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26048
ASSESSMENT OF THE IMPACT OF RIVERBED DESIGN ON WATER QUALITY – THE CASE STUDY OF BAHLUI RIVER, IAŞI, ROMANIA
Environmental Engineering and Management Journal › Vol. 12 › Nr. 4 AbstractIn 2010 in the area of Iasi city, Romania started the “Water-course regulation of Bahlui River, County of Iaşi” a project which inits first phase of development. It has as the main purpose to improve stream flow capacity and to guarantee the defending againstflood. Also, the project aim at developing a section of approximately 2.5 km located between the Stone Bridge (km 14+073) andTudor Vladimirescu Bridge (km 11+615) for recreational purposes. In order to obtain water storage, it i... Autori: Catrinel-Raluca Giurma-Handley, Costel Boariu, , Tomi-Alexăndrel Hrăniciuc ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26050
EDUCATIONAL MANAGEMENT AND LEADERSHIP STRATEGIES IN THE AGRICULTURAL PRACTICAL TEACHING PARTNERSHIPS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 4 AbstractActing on the recommendations of the Commissioner for Education, Culture, Multilingualism and Youth - Androulla Vassiliou,EU politicians agreed, at the European Council in Brussels - 2010, that education and training are vital for development and thesuccess of society and the current knowledge-based economy. Educational partnerships among all stakeholders engaged ineducation are increasingly important, while teachers and all the professionals involved in training young people must suppor... Autori: Carmen Olguţa Brezuleanu, , ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26052
INCREASING ENERGY EFFICIENCY OF WASTEWATER TREATMENT PLANTS BY UPGRADING THE CONVENTIONAL TREATMENT PROCESS WITH NEREDA TECHNOLOGY
Environmental Engineering and Management Journal › Vol. 12 › Nr. 4 AbstractGranular sludge technology – NEREDA is one of the most significant achievements in environmental biotechnology of the XXIstcentury. NEREDA is the latest innovative technology for biological wastewater treatment, which purifies water using the uniquecharacteristics of aerobic granular biomass. Unlike conventional processes, bacteria of the biological process naturally focus incompact granules with good settling properties.Due to the variety of biological processes that occur simultaneousl... Autori: Ilinca Dinu, Ioan Crăciun, Teodora-Manuela Cornea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26053
CROSS-SPECTRUM ANALYSIS APPLIED TO AIR POLLUTION TIME SERIES FROM SEVERAL URBAN AREAS OF ROMANIA
Environmental Engineering and Management Journal › Vol. 12 › Nr. 4 AbstractThe paper presents the application of cross-spectrum analysis (CSA) to air pollution and meteorological time series collected fromseven air quality monitoring stations located in three urban agglomerations of Romania, affected by industrial and trafficpollution: Braşov, Ploieşti and Târgovişte. Data have been collected from November 2011 till March 2012, at one hour samplingrate. The purpose of the analysis was to reveal the correlations between two series at different fre... Autori: Ştefania Iordache, Daniel Dunea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26057
METRIC AND NON-METRIC CAMERAS CALIBRATION FOR THE IMPROVEMENT OF REAL-TIME MONITORING PROCESS RESULTS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 4 AbstractIn recent years non-metric digital cameras have known a great development, being used in wide applications, such as: real timemonitoring and preservation of cultural heritage, the shoreline dynamics study, the wave movement for costal protection, soilerosion, etc. Clasic photogrammetry with the use of metric cameras are still of great use in areas such as architecture andenvironmental imaging. An old problem occurs when we want to extract metric information from our environment using clo... Autori: Ersilia Oniga, Maximilian Diac ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26061
SOIL STRUCTURE AND WATER-STABLE AGGREGATES
Environmental Engineering and Management Journal › Vol. 12 › Nr. 4 AbstractThe stability of soil aggregates is an indicator of soil structure. Soil acidity affects soil structure stability. Soil acidity has twocomponents: active acidity and exchangeable acidity. In natural conditions, each soil type has a certain level of acidity, which isgiven by its composition, natural vegetation, the chemical composition of precipitations and other factors that cause changes overtime in soil pH. Acidic soils are characterized by physical, chemical and biological properties ... Autori: Dorin Cotiusca Zauca, , Lucian Vasile Pavel ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26064
DETERMINATION OF ANNUAL AVERAGE TURBIDITY IN A RIVER SECTION USING EMPIRIC RELATIONSHIPS BASED ON GIS TECHNIQUES
Environmental Engineering and Management Journal › Vol. 12 › Nr. 4 AbstractThe design of hydrotechnical constructions requires knowing certain hydrological quantities necessary for their dimensioning.The annual average turbidity is one of these quantities. The issue is that, in some river sections direct observations andmeasurements do not exist regarding this hydrological quantity, so that different empirical relationships developed by variousauthors based on long observations and measurements are applied, such as that developed by Poliakov. Turbidity depends ... Autori: Ilinca Dinu, , Tomi-Alexăndrel Hrăniciuc ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26066
FUNDAMENTATION OF HUMAN RESOURCES IN AGRICULTURAL EXPLOITATIONS ON THE BASIS OF LABOUR PRODUCTIVITY INDICATORS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 4 AbstractThe role of human resources in agricultural exploitations proved to be an essential matter due to the decisive influence on theagricultural crop efficiency and production results. There exist particularities regarding the calculation of the human resourcesnecessary in vegetal crop production, animal husbandry and other activities connected with agriculture. From an economicalfinancialpoint of view, the analysis of human resources efficiency is based on two indicators, as follows: labour ... Autori: Carmen Olguta Brezuleanu, , ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26068
ECOLOGICAL FOOTPRINT APPLIED IN THE ASSESSMENT OF CONSTRUCTION AND DEMOLITION
Environmental Engineering and Management Journal › Vol. 12 › Nr. 4 AbstractConstruction and demolition waste (C&DW) are the result of inefficient and unsustainable use of natural resources and energy inproduction processes and other human activities, leading to economic losses. In this paper, the Ecological Footprint (EF), as a newindicator and methodology in environmental sustainability assessment was used to calculate where and how the humans induceimpacts on the environment, in particular due to the generation of C&DW. Ecological footprint makes a re... Autori: Alessandra Bonoli, Cristina Ghinea, Isabela Maria Simion, Maria Gavrilescu, Nicolae Taranu, Sebastian George Maxineasa ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26070
ASSESSMENT OF FIRM REPUTATION CAPITAL AND SUSTAINABILITY
Environmental Engineering and Management Journal › Vol. 12 › Nr. 4 AbstractThe concept of firm reputation is tightly connected to the concept of corporate social responsibility and implicitly to that ofsustainable development. Reputation is the achieved result of the company out of factors such as economic viability, socialinvolvement and ecological health. The strength of a firm`s reputation is the ability to empower with core competences and usethem efficiently for both creating economic value and meeting the legal interests of the stakeholders. The main assu... Autori: Manoela Popescu, Roxana Arabela Dumitraşcu, Vadim Dumitraşcu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26071
PRELIMINARY TRIAL APPLICATION OF BIOLOGICAL DESULFONATION IN ANAEROBIC DIGESTORS FROM PIG FARMS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 4 AbstractThis paper describes preliminary tests carried out in treatment plants serving two different pig farms in Northern Italy, in order toassess the feasibility of implementing biological sulphur removal from biogas produced by anaerobic digestion processes. Thisnormally consists of mixture of CH4, CO2, and other gases; in the presence of sulphur, H2S is also formed, which must beremoved prior to the gas use in thermal engines, to avoid corrosion phenomena. Sulphur removal in the plants consi... Autori: Andrea G. Capodaglio, Arianna Callegari, Vincenzo Torretta ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26074
APPLICATION OF GIS TECHNIQUE IN LAND EVALUATION FOR AGRICULTURAL USES
Environmental Engineering and Management Journal › Vol. 12 › Nr. 4 AbstractThe purpose of this paper is to analyze the opportunity of GIS technique implementation for the research of agricultural landsquality. Taking into account that the factors which determine the quality of agricultural lands have a spatial distribution, weconsidered that the complex activities (especially on large surfaces) can be better done within the framework of an informationsystem. Compared to other methods applied for assessing the productive potential of agricultural lands, the GIS ... Autori: Florian Statescu, Gabriela Biali ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26075
WATER MANAGEMENT AT THE FORMER COPPER MINING SITE MEDET (BULGARIA)
Environmental Engineering and Management Journal › Vol. 12 › Nr. 4 AbstractThe scope of the present paper is water management dimensioning closed to the copper mining area in the Medet region(Bulgaria). The mining works left an open pit and several waste rock dumps within the catchment area of Medetska River. Atpresent although the flooding of open pit is going on, it will be finished approximately in 2018. Water treatment is necessary dueto the high concentrations of pollutants (sulphate and copper) in the waters influenced by mining. The objective of the stud... Autori: Gabriela Biali, Petra Schneider, Ralf Löser ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26077
INVESTIGATION OF ISOTHERMAL AND FIXED-BED COLUMN SORPTION OF Cu (II) ONTO ALMOND SHELL
Environmental Engineering and Management Journal › Vol. 12 › Nr. 3 AbstractThe present study reports the efficiency of almond shell as a cheap and available material for the removal of Cu (II) fromcontaminated aqueous solutions. The equilibrium experiments indicated that Cu (II) sorption obeyed the Langmuir isotherm at26, 40 and 55oC. The highest value of the maximum uptake (Qo) from the Langmuir equation was found 6.783 mg g-1 at 40oC.The various thermodynamic parameters such as ΔGo, ΔHo and ΔSo were also calculated. The values of ΔGo varie... Autori: Soheil Aber ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26080
ACTIONS TO REDUCE AIR POLLUTION FROM A COAL THERMAL POWER PLANT
Environmental Engineering and Management Journal › Vol. 12 › Nr. 3 AbstractThe slag and the ash, resulted after the lignite burning in the boilers of Thermal Power Plant located at Timisoara South(Romania), are hydraulically evacuated at the storage facility for slag and ash near village Utvin. Fine ash from compartments ofslag and ash deposits that are not covered by water can be driven by air currents, causing pollution. After admission of Romaniain European Community, the rules for environmental protection are strictly applied. This paper presents the review... Autori: Emilian Stefan Valea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26081
TRAFFIC NOISE MEASUREMENT AND PREDICTION OF THE BARRIER EFFECT ON TRAFFIC NOISE AT DIFFERENT BUILDING LEVELS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 3 AbstractWith the development of transportation systems, the associated traffic noise problem has drawn more and more attention in HongKong. Under the Hong Kong Planning Standards and Guidelines, a standard of 70 dB(A), measured as LA10 (1 hour), has been setfor road traffic noise. The Calculation of Road Traffic Noise (CRTN) method has been adopted in Hong Kong to estimate suchnoise. This study first examined and evaluated the accuracy of this method in predicting traffic noise at different floo... Autori: Cheuk Ming Mak ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26082
STATISTICAL SPATIAL MODELS OF SOIL PARAMETERS. AN APPROACH USING DIFFERENT METHODS AT DIFFERENT SCALES
Environmental Engineering and Management Journal › Vol. 12 › Nr. 3 AbstractThe Romanian Soil Survey System does not imply, up to the present date, the use of digital methods in representing fieldcampaign results or for mapping soil parameters. The presented study tests several geostatistical methods to model some soilparameters (soil pH and topsoil humus content), mainly in order to observe the differences induced by the scale of the approachand to test existing data. In this respect, three differently dimensioned analysis scales were chosen, all parts of the s... Autori: Ionuţ Vasiliniuc ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26083
CHEMOMETRIC CLASSIFICATION OF ADVANCED OXIDATION PROCESSES FOR THE DEGRADATION OF PHARMACEUTICALS AND PERSONAL CARE PRODUCTS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 3 AbstractThe present study was focused to classify various advanced oxidation processes (AOPs) to degrade sixteen commonpharmaceuticals and personal care products (PPCPs). The classification was based on the degradation rate constant (h-1).Chemometric techniques like principal component analysis (PCA) and cluster analysis (CA) were used to classify AOPs whichcan efficiently degrade a certain class of PPCPs. The bipolt based on first two principal components (PCs) of PCA modelidentified two distin... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26085
KINETICS AND EQUILIBRIUM ADSORPTION STUDY OF LEAD (II) ONTO LOW COST CLAYS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 3 AbstractThe performance of four low cost Iraqi clays, bentonite (BT), kaolinite (KT), attapalgite (AT) and flint (FT) to remove lead ionsfrom aqueous solutions by adsorption was investigated. Batch experiments were carried out at pre determined equilibration time,adsorbent dosage, solution pH, particle sizes, ionic strength, initial lead ions concentration and temperature. Adsorption of Pb2+ions was strongly affected by pH and best adsorption is achieved at pH 4.5. The systems were investigated ... Autori: Najwa I. Abdulla ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26086
EXPERIMENTAL STUDY AND NUMERICAL MODELLING OF THE WATER/OZONE CONTACT SYSTEM IN BUBBLE COLUMNS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 3 AbstractThe ozone oxidation and disinfection stages constitute important technological phases in the modern systems of water treatment,both as unitary stages as integrated ones into systems that use advanced oxidation processes (AOP). More than half of thewater/ozone contact systems used nowadays in the water treatment plants are based on systems of contact in the bubble column.This work here aims at experimentally analysing, in terms of scale, a water-ozone contact system in the bubble column a... Autori: Sorin Claudiu Ulinici ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26088
ELECTROCHEMICAL MINERALIZATION OF REACTIVE RED 147 DYE ON BORON-DOPED DIAMOND ELECTRODES
Environmental Engineering and Management Journal › Vol. 12 › Nr. 3 AbstractA study on the electrochemical decolourisation, aromatic ring degradation and mineralization of Reactive Red 147 (RR) syntheticsolutions using boron-doped diamond (BDD) electrodes is presented. Electrolyses were carried out under galvanostaticconditions in 0.1 M Na2SO4 supporting electrolyte using undivided electrolytic cell. Prior to electrolysis application, theelectrochemical behaviour of BDD electrode was characterized in the presence of RR dye by cyclic voltammetry in order toestabl... Autori: Sorina Moţoc ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26089
ELECTROCOAGULATION-TiO2 PHOTO-ASSISTED COMBINED SYSTEM APPLIED TO METHYL ORANGE WASTEWATER REMOVAL
Environmental Engineering and Management Journal › Vol. 12 › Nr. 3 AbstractCombined electrocoagulation (EC) and homogeneous phase TiO2 photo-assisted system were applied to methyl orange (MO)wastewater treatment. Optimum including current density, initial concentration of MO, TiO2 concentration, pH, solutionconductivity and electrode distance were investigated. 98% decolorization (initial concentration = 500 mg/L) was achieved in 30min with a current density of 125 A/m2, electrode distance of 2.5 cm, electrolyte KCl concentration of 0.5 g/L, initial pH of 6.86,... Autori: Yi Zhang ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26090
ASSESSMENT OF MACROMYCETES USING FOURIER TRANSFORM INFRARED SPECTROSCOPY AND CHEMOMETRICS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 3 AbstractEight species of macromycetes which grow in phytocoenosis from “Călimani National Park” (Eastern Carpathians, Romania)have been analysed using Fourier Transform Infrared spectroscopy (FTIR). Among the analysed species, five species are beingconsidered edible (Clitopilus prunulus, Pleurotus eryngii, Macrolepiota rhacodes, Lacaria laccata and Suillus luteus) and threespecies are being considered toxic (Lyophyllum connatum, Paxillus involutus şi Gyromitra infula). The results of f... Autori: Aurel Pui ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26091
DRIVING FORCES OF WEEE MANAGEMENT: A PEST ANALYSIS OF ROMANIA
Environmental Engineering and Management Journal › Vol. 12 › Nr. 3 AbstractWaste electrical and electronic equipment (WEEE, e-waste) represent the category of municipal waste with the fastest growthrate of the quantities generated particularly in developed countries. In Romania the WEEE management concerns have emergedrecently and the amount of information and data available is limited and sometimes irrelevant. In this case, studying the forcesthat influence WEEE management system directly or indirectly is useful for both the national and international stakehol... Autori: Nadia Ciocoiu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26092
STUDIES ON THE TOXICITY OF COMPOSITE TANNERY EFFLUENT USING GUPPY (Poecilia reticulata) AS A FISH MODEL
Environmental Engineering and Management Journal › Vol. 12 › Nr. 3 AbstractEast Calcutta Wetland ecosystem is a Ramsar Site in India covering almost 51 km2 and is one of the largest of its type. Thiswetland receives a massive load of almost untreated industrial and domestic effluents every day, throughout the year, that hasbeen effectively utilized in pisciculture for having a better yield (2.85 metric tons of fish per 0.01 km2 of water body per annum).The present investigation was carried out to study the toxicity of the untreated effluents discharged from tan... Autori: Utpal Singha Roy ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26094
INFLUENCE OF NITRATE LOAD ON SULFUR TRANSFORMATIONS IN THE RHIZOSPHERE OF Juncus effusus IN LABORATORY-SCALE CONSTRUCTED WETLANDS TREATING ARTIFICIAL DOMESTIC WASEWATER
Environmental Engineering and Management Journal › Vol. 12 › Nr. 3 AbstractTwo laboratory-scale constructed wetlands planted with Juncus effusus were used to investigate the effect of nitrate load on thesulfur transformation dynamics related to the removal of organic carbon and ammonium. Organic carbon was removed at aconstant high mean level of 80% (inflow of 25 mg/L total organic carbon), irrespective of the nitrate load. In contrast, sulfatereduction responded immediately to the presence or absence of nitrate in an opposing manner, indicating a high abundanc... Autori: Shubiao Wu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26095
ENVIRONMENTAL IMPACT ASSESSMENT FOR TRADITIONAL VERSUS RECYCLED ROAD ASPHALT MIXTURES
Environmental Engineering and Management Journal › Vol. 12 › Nr. 3 AbstractThe evaluation of the environmental impact of transport infrastructure entails a complex characterization of factors, attitudes andconsequences. In the frame of an ecologically friendly approach, sustainable alternatives and solutions for road asphaltpavements production and exploitation must be identified. A comparative evaluation of the environmental impact for recycledand traditional road pavements asphalt mixtures, expressed as the amount of equivalent carbon dioxide, per ton of mixt... Autori: Alina Mihaela Nicuţă ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26096
TOWARD A BLACK SEA COMMUNITY TAKING THE ADVANTAGES OF HYDROGEN ECONOMY-ENERGY
Environmental Engineering and Management Journal › Vol. 12 › Nr. 3 AbstractThere are a quite large number of studies published in the last decade, dealing with the possible pass of the human society to thehydrogen-based energy. The efforts made by researchers all around the world, in order to bring technical solutions, seemremarkable, but at global level only minor progresses were made toward this major change. Furthermore, most of studiespredicted a fuel crisis, but not a possible economical crisis with significant effects on the developing renewable energytec... Autori: Ştefan Stanciugelu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26099
SECOND GENERATION BIOFUELS AND BIOMASS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 3 Mother Earth Investments AG, is actively working onthe development 2nd generation bioenergy feedstocks.In this book, Mr. Jansen generously shares hisknowledge in the field, in particular, regarding thechallenges and opportunities in development ofbiomass-derived fuels. This essential guide toinvesting in bioenergy commodities details secondgeneration biofuels from a scientific, technical andeconomic perspective, and discusses their globalenvironmental, political and financial impact.The book is ... Autori: Roland A. Jansen ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26100
THE ROLE OF GREEN CHEMISTRY IN BIOMASS PROCESSING
Environmental Engineering and Management Journal › Vol. 12 › Nr. 3 The book edited by Haibo Xie and NicholasGathergood focuses on one of the most importantscientific issues of the 21 century which is thereplacing fossil fuel with sustainable alternatives suchas biomass. Fossil fuels are conventional rawmaterials for many industrial sectors includingchemical and energy production. Usage of fossil fuelis limited by their availability, price and carbonfootprint. Biomass is a renewable resource globallyavailable, cheaper and carbon sequestering. Step bystep shiftin... Autori: Adrian Catalin Puitel ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26101
EDITORIAL - A SPECIAL ISSUE DEDICATED TO ENVIRONMENTAL LEGISLATION, SAFETY ENGINEERING AND DISASTER MANAGEMENT
Environmental Engineering and Management Journal › Vol. 12 › Nr. 2
The ELSEDIMA International Conference on
“Environmental Legislation, Safety Engineering and
Disaster Management” held its 9th edition in 2012. This
edition was organized by the “Babeş-Bolyai” University
of Cluj-Napoca - Faculty of Environmental Science and
Engineering, together with the Ministry of
Administration and Interior - General Inspectorate for
Emergency Situations, the Disaster Preparedness and
Prevention Initiative for South – Eastern Europe and
S.C. I... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26102
ASSESSING THE ENVIRONMENTAL QUALITY OF THE VENICE LAGOON WATERS USING THE E-QUALITY SOFTWARE TOOL
Environmental Engineering and Management Journal › Vol. 12 › Nr. 2
Abstract
According to the Water Frameword Directive the classification of water bodies environmental quality and the achievement of
“good status” by 2015 are requested for all the European aquatic environment, including transitional waters such as coastal
lagoons. Although progresses have been done and many results have been achieved, several aspects of the WFD implementation
can be further improved and current limitations are more evident for some categories of water bodies such a... Autori: Andrea Critto ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26103
RP-HPLC ANALYSIS OF CARBONYL COMPOUNDS IN SOME INDOOR AIR SAMPLES IN A FACULTY FROM CLUJ-NAPOCA
Environmental Engineering and Management Journal › Vol. 12 › Nr. 2
Abstract
This study describes a reversed-phase high-performance liquid chromatography (RP-HPLC) method for the analysis of several
carbonyl compounds in air samples. The air samples were collected using a passive sampling method and cartridges based on
florisil impregnated with 2,4-dinitrophenylhydrazine (2,4-DNPH). After derivatization the carbonyl compounds were analyzed
by liquid chromatography technique coupled with UV detection. The developed RP-HPLC method was used to analyze... Autori: Carmen Roba ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26104
DESCRIPTION OF AEROSOL PROPERTIES OVER CLUJ-NAPOCA DERIVED FROM AERONET SUN-PHOTOMETRIC DATA
Environmental Engineering and Management Journal › Vol. 12 › Nr. 2
Abstract
This paper presents some optical and microphysical properties of aerosols measured over the Cluj-Napoca city, at the Faculty of
Environmental Science and Engineering, Babeş-Bolyai University. This site is part of the Romanian Atmospheric 3D Research
Observatory (RADO) and the Aerosol Robotic Network (NASA-AERONET) and is equipped with the only sun and sky tracking
radiometer (Cimel CE 318A sun-photometer) in Transylvania. By analyzing Direct Sun measurements like Aero... Autori: Nicolae Ajtai ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26105
EFFECT OF BATCH TIME ON THE PARETO OPTIMAL OPERATING SOLUTIONS FOR A CHEMICAL REACTOR BASED ON FAILURE PROBABILITY INDICES
Environmental Engineering and Management Journal › Vol. 12 › Nr. 2
Abstract
Recently, a new failure probability index was introduced that characterizes the operation of highly sensitive chemical reactors
(i.e. when highly exothermic / hazardous reactions are conducted). Based on this, the current paper exemplifies the application of
the risk analysis methodology proposed to generate the Pareto optimal operating solutions accounting for reactor productivity
maximization (product yield) and probabilistic risk minimization. The multi-objective optimi... Autori: Anca Dan ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26108
FAST CHARACTERIZATION OF PYRIDINE USING ION MOBILITY SPECTROMETRY AND PHOTOIONIZATION DETECTION
Environmental Engineering and Management Journal › Vol. 12 › Nr. 2
Abstract
Being involved in the synthesis of precursors for amphetamine and amphetamine-like drugs, pyridine (Py) may be also regarded
as a by-product found when these drugs are obtained via the Leuckart method. Also, pyridine is well known as a biomarker of
microorganisms, when those are subjected to pyrolysis before analysis by various instrumental techniques. Consequently, since
Py is not commonly found in the air, its presence as a contaminant at trace levels in a room could ind... Autori: George-Bogdan Ghira ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26109
TRIHALOMETHANES VARIATION IN URINE UNDER DIFFERENT CONDITIONS OF HUMAN EXPOSURE
Environmental Engineering and Management Journal › Vol. 12 › Nr. 2
Abstract
Known as the most important byproducts of water disinfection with chlorigen chemicals, trihalomethanes (THMs) are
incriminated in causing severe effects upon human health. The exposure pathways that can lead to potentially significant uptake
of THMs include for adults ingestion of tap water and inhalation of THMs in vapor phase resulting from bathing, showering and
washing. The purpose of this paper is the exposure assessment to THMs through ingestion, inhalation and derma... Autori: Anca Elena Gurzău ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26110
BIODEGRADATION OF POLY(HYDROXYBUTYRATE)/POLY(VINYL ALCOHOL) BLENDS BY FILAMENTOUS FUNGI
Environmental Engineering and Management Journal › Vol. 12 › Nr. 2
Abstract
Poly(hydroxybutyrate) (PHB) is a biodegradable thermoplastic polyester with very high potential for industrial applications. The
properties could be improved by mixing with another polymer, natural or synthetic, such as poly(vinyl alcohol) (PVA). The
resulting polymer blends are potentially able to achieve the desired performance for different applications. Biodegradation
modifies mechanical, physical and chemical properties of a given material. PHB are degraded by diverse... Autori: Luiza Jecu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26111
STUDY OF HEAVY METAL POLLUTION AND BIOACCUMULATION IN THE BLACK SEA LIVING ENVIRONMENT
Environmental Engineering and Management Journal › Vol. 12 › Nr. 2
Abstract
The Black Sea is seriously affected by a large range of pollutants, despite severe laws regarding the protection of sea ecosystems.
Heavy metals are among the most important xenobiotics from the environment, presenting also toxicity for humans.
The studies upon heavy metals have proven that the sediments have the highest concentrations and they can release metals back
to water and this fact represents a risk for the humans and aquatic ecosystem life.
The use of aquatic ... Autori: Oana Jitar ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26112
COMBINED OPTOELECTRONIC METHODS USED IN THE MONITORING OF SO2 EMISSIONS AND IMISSIONS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 2
Abstract
This study focuses on the local scale behavior of SO2 emissions resulting from lignite-combustion thermal power plants. The
investigations aimed at monitoring the SO2 emissions and imissions over a two week period in September 2010. One of the
largest power plants from Eastern Europe was chosen for monitoring using different optoelectronic techniques. Rovinari power
plant (44o54’45”N – 23o09’44”E) is one of the largest electricity suppliers of Romania, having 4 groups of 3... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26113
RISK-BASED ANALYSIS OF AN INDUSTRIAL ROMANIAN SITE HISTORICALLY CONTAMINATED WITH HEAVY METALS AND TOTAL PETROLEUM HYDROCARBONS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 2
Abstract
Contaminated land is a major problem and its remediation costs in Europe and the USA exceed €550 billion; however,
rehabilitation proceeds only at a slow pace. The normally high cost of remediation, along with the inefficient use of the available
funds, gives rise to a need for a method of effectively allocating remediation funds. Risk assessment based techniques sustain the
decision-making process regarding contaminated sites rehabilitation, along with cost/benefit analys... Autori: Ileana-Codruţa Stezar ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26115
STUDY OF TROPOSPHERIC AEROSOL TYPES OVER IASI, ROMANIA, DURING SUMMER OF 2012
Environmental Engineering and Management Journal › Vol. 12 › Nr. 2
Abstract
This research has been performed during summer time at Iasi Atmosphere Optics, Spectroscopy and Lasers Laboratory site
(LOA-SL), aerosol monitoring station (47.19N, 27.55E). In order to properly identify and characterize the aerosol types, Aerosol
Robotic Network (AERONET) data and sun-photometer measurements were analysed using parameters such as: optical
thickness, spectral dependence of Ångström exponent (α), spectral dependence of Single Scattering Albedo and the ... Autori: Florin Unga ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26116
ADVANCED QUANTITATIVE ENVIRONMENTAL IMPACT ASSESSMENT METHOD
Environmental Engineering and Management Journal › Vol. 12 › Nr. 2
Abstract
The environmental impact assessment has gained a very important role in the decision making regarding different projects,
investments, actions and proposals. The environmental impact assessment is a systematic process which deals with the
consequences of the future developments in advance. The methodology of the assessment includes several techniques. The
quantitative methods focus on the evaluation of the impacts by assigning importance values to the environmental paramet... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26117
AQUATIC PHYTOTOXICITY OF HEAVY METALS: Cu, Cd AND Zn ECOTOXICOLOGICAL TESTS WITH DUCKWEED PLANTS (Lemna minor)
Environmental Engineering and Management Journal › Vol. 12 › Nr. 2
Abstract
Heavy metals are common contaminants of freshwaters and they can produce toxic effects on aquatic fauna and flora. The ions of
heavy metals existing in freshwaters are well known as toxicants for the aquatic organisms. Duckweed is an aquatic plant of
small size that floats on fresh water surface of lakes and marshes. The small plants are highly exposed to aquatic pollutants and as
a result they are very sensitive to the toxic effects. As consequence the duckweed plants are... Autori: Vasile Oros ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26122
MONITORING THE QUALITY OF THE SLUDGE RESULTED FROM DOMESTIC WASTEWATER TREATMENT PLANTS AND THE IDENTIFICATION OF RISK FACTORS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 2
Abstract
Monitoring the quantity of the sludge resulted from domestic wastewater treatment is a current concern in Romania due to the
necessity to reduce any risk. This paper discusses the results of monitoring and examination of sludge deposited temporarily in a
domestic wastewater treatment plant (5000 people equivalent) from qualitative point of view, following the analysis of the
physical-chemical parameters: pH, total solids, specific resistance to filtration, humidity and den... Autori: Casen Panaitescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26123
STUDY ON RECYCLING FEASIBILITY OF ACTIVATED GLASS FROM WEEE EQUIPMENT TREATMENT
Environmental Engineering and Management Journal › Vol. 12 › Nr. 2
Abstract
The main purpose of this paper is to identify, highlight and analyze the recycling possibilities for the activated glass derived from
the treatment of the cathode ray tubes (CRT) waste equipment and to demonstrate the recycling viability, economical and
environment protection efficiency.
A total of 95 pieces of waste electronic equipments (TVs and PC monitors) were processed and a number of five TVs and five
PC monitors from the ‘95s were analyzed. Significant quantitie... Autori: Antoanela Popovici ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26124
MATHEMATICAL MODELING OF THERMAL DESORPTION USING LINEAR REGRESSION ANALYSIS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 2
Abstract
The article presents the development of a mathematical model concerning thermal desorption in a tubular electric furnace, using
the linear regression analysis principle. With a range of experimental data obtained from some laboratory tests on water
evaporation plus pollutant (Hexaclorocyclohexane - HCH), evaporation resulting from the application of thermal desorption on
some soil samples; a mathematical model was developed to calculate the mass of substance evaporated fro... Autori: Calin Vasile Prodan ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26125
ANALYSIS OF AIR QUALITY IN TWO SITES WITH DIFFERENT LOCAL CONDITIONS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 2
Abstract
The aim of this paper is to analyze how local and atmospheric conditions influence pollutants’ distribution. Two different sites in
Romania were chosen for measurement campaigns: Surlari (44° 34', 26° 19') located into a forest and near a lake, and a suburban
area, Magurele (44° 21', 26° 2'), where the anthropogenic activities dominate. The same equipments for measurements of surface
ozone, CO, NO2, NO and PM10 were used at the two sites. The measurements were performed in... Autori: Sabina Ştefan ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26126
EXPLORATORY ANALYSIS OF GAS EMISSIONS FROM NON-COMPLIANT MUNICIPAL LANDFILL USED FOR ENERGETIC EVALUATION
Environmental Engineering and Management Journal › Vol. 12 › Nr. 2
Abstract
This paper presents a research method for the exploratory analysis of non-compliant municipal waste landfills by determining the
gas composition of emissions. The proposed method has the following stages: establishing municipal landfill surface contour by
topographic measurements; setting measuring points on the deposit surface; setting the number of points needed and their spatial
coordinate; field location of points for making exploratory measurements; making and recordi... Autori: Michaela Bianca Vac Soporan ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26127
ASSESSMENT METHODOLOGY FOR NON-COMPLIANT LANDFILLS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 2
Abstract
This paper presents a proposal for measurements and interpretation of gaseous emissions from the municipal landfills, especially
for non-compliant sites. Based on the measurements made on the Pata Rat landfill, Cluj-Napoca, a methodology for interpreting
the results is presented, in order to assess current energy potential of the deposit. Measurements are the main basis for
determining the energy potential of the deposit. By applying the methodology for determining the ene... Autori: Michaela Bianca Vac Soporan ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26128
GREEN MARKETING - FACTOR OF COMPETITIVENESS IN RETAILING
Environmental Engineering and Management Journal › Vol. 12 › Nr. 2
Abstract
Over the last years an increasing number of retailers have undertaken green marketing-specific actions with the purpose of not
only bolstering their reputation but also of improving their awareness, increasing their trust or enhancing the target groups’
appeal for the company. These actions/measures will eventually exert a positive effect on how customers perceive retailers. Once
a proper, positive and proactive image has been developed in consumers’ mind, the chance of ga... Autori: Dan-Cristian Dabija ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26129
REMEDIATION OF THE ENVIRONMENTAL DAMAGE PRODUCED ON A SITE BY CONTAMINATION WITH PETROLEUM PRODUCTS. CASE STUDY
Environmental Engineering and Management Journal › Vol. 12 › Nr. 2
Abstract
Environmental degradation is today one of the great problems of mankind. Not only the need to exploit, but also the necessity to
protect and preserve the natural environment have led to the adoption of specific rules for the prevention and remediation of
environmental damages, according to EU standards.
Taking into account that any human intervention on the natural and anthropogenic environment can lead to ecological risk
diversification, occurrence of accidental pollut... Autori: Aurica Grec ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26130
FUZZY-BASED CLUSTERING OF EPICENTERS AND STRONG EARTHQUAKE-PRONE AREAS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 1
Abstract
An original Discrete Perfect Sets (DPS) algorithm was developed and applied to clustering of earthquake epicenters with M≥3.0
in California. The obtained clusters correspond well with the locations of the epicenters of strong earthquakes with M≥6.5.
This fact allows considering them as earthquake-prone areas for the magnitude M≥6.5. We compared the obtained clusters
with the areas recognized in 1976 using Earthquake-Prone Areas (EPA) method. The compariso... Autori: Alexei Gvishiani ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26132
IMPROVING MANAGEMENT OF RISKS AND NATURAL DISASTERS BY REGIONAL GIS DISTRIBUTED APPLICATION
Environmental Engineering and Management Journal › Vol. 12 › Nr. 1
Abstract
The aim of this paper is to provide a framework for the improvement of the processes involving risks evaluation and management
evaluation in Central East Moldavian Region, considering the occurrence of natural disasters, such as floods, earthquakes, forest
fires and landslides. Consequently, a GIS application has been developed in order to graphically reflect and analyze these risks.
The studies on the targeted region would be a starting point to further extensions to othe... Autori: Iulian Furdu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26133
BEHAVIOUR OF SOLID PARTICLES ON A FLAT OSCILLATING SURFACE
Environmental Engineering and Management Journal › Vol. 12 › Nr. 1
Abstract
In many industrial applications most of the solid particles are separated by size and for this purpose there are used the oscillating
sieves. The separation process based on sieves is a complex one and it depends on several factors, such as the properties of solid
particles submitted to the separation process and on the operating regimes of the separating equipment. We have studied the
separation process of the behaviour of solid particles on a flat oscillating surface... Autori: Ovidiu Bontas ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26134
TIME SERIES ANALYSIS OF WIND SPEED AND TEMPERATURE IN TIRASPOL, MOLDOVA
Environmental Engineering and Management Journal › Vol. 12 › Nr. 1
Abstract
This research analyses time series of air temperature and wind speed. Trends and periodical components are defined for both time
series with no significant statistical relationship between them. The spectral analysis of temperature series with no trends shows
the peak frequency fc = 1/12, corresponding to a seasonal periodical component. The graph of the spectral density function of the
wind speed time series does not manifest a seasonal periodic component. Forecasting of ... Autori: Rasid Burtiev ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26135
EFFICIENCY OF FILTERS WITH DIFFERENT FILTERING MATERIALS: COMPARATIVE STUDY IN WATER TREATMENT
Environmental Engineering and Management Journal › Vol. 12 › Nr. 1
Abstract
In order to accomplish the water quality standards required for a specific use, the continental surface water is treated through a
sequence of operations and unit processes. The treatment technological flowsheets carry out, partially or totally, the removal of
various pollutants, every treatment step being used for improving one or more qualitative parameter. The treatment scheme is
specific to water source type and water use. One of the basic operations for water treatmen... Autori: Oana Tirtoacă Irimia ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26136
IMPROVING FOOD SECURITY USING GIS DATABASE FOR MECHANIZED RICE FARMS MANAGEMENT IN NORTHWESTERN COTE D’IVOIRE
Environmental Engineering and Management Journal › Vol. 12 › Nr. 1
Abstract
Agriculture is an axis of socio-economic development of the area of Denguele, Cote d’Ivoire. The evaluation of a project carried
out as part of an agricultural campaign requires the handling of large amounts of heterogeneous data for effective monitoring. The
design of an appropriate management tool is needed to organize and communicate information useful for decision making.
The aim of this work is to provide a useful tool for a better management of information related to... Autori: Arthur Brice Konan-Waidhet ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26137
MACRO AND ULTRA-MICRO SCALE CHANGES OF RAPESEED SEEDLINGS GERMINATED FROM SEEDS EXPOSED TO UVA-VIS RADIATIONS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 1
Abstract
Our researches have focused primarily on variations of different biophysical and biochemical effects on vegetal and animal
material at macro, micro, and ultra-micro scale resulted from changes in environmental condition. Growth and spectral parameters
of rapeseed seedlings from seeds exposed to UVA-VIS radiation with a high pressure lamp which emits incoherent continuously
radiation for different time periods were examined 14 days after germination. These studied parameter... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26138
ATR-FTIR CHARACTERIZATION AND CLASSIFICATION OF AVOCADO OILS FROM FIVE CAMEROON CULTIVARS EXTRACTED WITH A FRIENDLY ENVIRONMENTAL PROCESS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 1
Abstract
Avocado post-harvest losses and cultivar-oriented trade are relevant issues in Cameroon that affect producers and retailers
incomes. Identifying specific chemical characteristics of avocado oils would give an added value to underutilized species. Five
avocado varieties, Booth 7, Booth 8, Collinson, Hickson and Lula, were subjected to aqueous extraction and the Attenuated Total
Reflectance-Fourier Transformed Infrared spectrometry coupled with chemometrics (ATR-FTIR) profil... Autori: Brice Ulrich Saha Foudjo ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26143
NEW EXPERIMENTAL PARAMETERS FOR MONITORING ENERGY SPECTRA OF GAMMA-RAY RADIATIONS IN THE ENVIRONMENT
Environmental Engineering and Management Journal › Vol. 12 › Nr. 1
Abstract
Large amount of radioactive sources generate gamma rays of various energies and intensities. Gamma-ray spectroscopy is applied
for the quantitative study of the energy spectra of gamma-ray sources. In the present paper, a statistical analysis of the energy
spectra of gamma-ray spectroscopy monitored during 4 years at the “Dosimetry and Radioprotection” Laboratory from ”Vasile
Alecsandri” University of Bacău is provided. Several new mathematical parameters were calcula... Autori: Marius Stamate ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26144
THE RELEVANCE OF VOLCANIC HAZARD IN ROMANIA: IS THERE ANY?
Environmental Engineering and Management Journal › Vol. 12 › Nr. 1
Abstract
Volcanic hazard is ignored in natural hazard studies in Romania because no active volcano is known on its territory. However, the
2010 eruption of Eyjafjallajökull volcano in Iceland and its consequences on air traffic safety across Europe and the whole
northern hemisphere dramatically demonstrated that volcanic hazard in a certain area, such as a country, is not necessarily related
to the presence of active volcanoes in the same territory. Therefore, target-focused approa... Autori: Alexandru Szakács ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26146
DEMINERALIZATION OF WATER WITH MIXED-LAYER ION-EXCHANGERS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 1
Abstract
This paper develops a procedure whereby breakthrough curves obtained experimentally for ion exchange process in fixed bed ion
mixed exchangers during water demineralization, can be used to characterize quantitatively and optimize the ion exchange
process. In this regard, based on breakthrough curves there were developed statistical models that correlate three important factors
which influence the process (superficial fluid velocity through the layer, changing layer height,... Autori: Iuliana Rogoveanu Radosavlevici ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26147
APPLICATION OF ORGANIC FLOCCULANTS FOR THE TREATMENT OF SLUDGE FROM MUNICIPAL WASTEWATER TREATMENT PLANTS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 1
Abstract
After any treatment process of wastewater results residual sludge that is characterized depending on the type of the wastewater or
by the sludge treatment type. The sludge treatment process can be divided in three important stages: the preliminary stage (with
the sludge thickening), the stabilization stage, and the dewatering stage. The paper shows the results of the research for the
identification of the most efficient organic cationic flocculants, which might be used wit... Autori: Mariana Turcu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26149
APPLICATION OF A NEURO-GENETIC TECHNIQUE IN THE OPTIMIZATION OF HEAVY METALS REMOVAL FROM WASTEWATERS FOR ENVIRONMENTAL RISK REDUCTION
Environmental Engineering and Management Journal › Vol. 12 › Nr. 1
Abstract
The reason for carrying out this research is related to the significant risk of heavy metals present in wastewater on the
environment and human health. The removal of heavy metal ions from aqueous solutions was performed in a batch system, using
peat (from Poiana Stampei, Romania) as adsorbent. The efficiency of the process was predicted with high accuracy (correlation
with experimental data more than 0.99) based on a feed-forward neural network with two hidden layers. The... Autori: Gabriel Dan Suditu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26150
STUDY ON WATER QUALITY AND BIODIVERSITY OF SURFACE MICROLAYER IN FRESH WATERS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 9 AbstractTo explore the water quality and biodiversity of surface microlayer (SML) in fresh waters, we investigated the water status ofSML and subsurface water (SSW) of three fresh waters in China during April to August of 2010, by chemical and biologicalmonitoring methods. The results showed that the indexes such as total nitrogen (TN), total phosphorus (TP), chemical oxygendemand (COD) exceeded the national III or IV level of surface water quality, and the contents of indexes of SML were muchhi... Autori: Jiang Yu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26158
EVALUATION OF URBANIZED ECOLOGICAL ENVIRONMENT QUALITY: A CASE STUDY ON BEIJING CHAOYANG DISTRICT
Environmental Engineering and Management Journal › Vol. 12 › Nr. 9 AbstractThe objective of this study is to evaluate the urbanized ecological environment quality with land use classification system(artificial ecological subsystem, water ecological subsystem and continental ecological subsystem). Three land use type ecosystem combined with characteristics of urban ecological environment conditions (space pattern, environment characteristics, biological characteristics, ecosystem service) established the urban ecological environment quality synthetic evaluation ... Autori: Zhang Chen ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26160
EXPERIMENTAL RESEARCH ON CHANGES IN THE MECHANICAL PROPERTY LAW OF RESERVOIR BANK SANDSTONE UNDER "IMMERSION-AIR DRY" CIRCULATION
Environmental Engineering and Management Journal › Vol. 12 › Nr. 9 AbstractDuring the normal operating of reservoir, the rock mass quality in hydro-fluctuation belt of reservoir bank will degrade graduallyunder the water-rock interaction because of the periodically impoundment and drainage. In this article, with the consideration ofthe change of water pressure, an experiment was performed to simulate the process of “immersion-air dry” cycles with sandstones selected from the hydro-fluctuation belt of Three Gorges reservoir area. Test results indicates that the ... Autori: Huafeng Deng ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26161
STUDY OF ECOLOGICAL INHIBITION OF SULFATE-REDUCING BACTERIAL ACTIVITY AND ASSOCIATED POPULATION SUCCESSION IN OILFIELD FLOODING WATER
Environmental Engineering and Management Journal › Vol. 12 › Nr. 9 AbstractIn the conventional water flooding process of Daqing Oilfield in China, the occurrence of abundant sulfate-reducing bacterialpopulations has substantially affected the industrial production. This study was conducted from the perspective of ecologicalsuppression by operating anaerobic ABR reactors and dosing ecological inhibitors in a continuous-flow experiment. The practicaloperating efficacy was investigated and associated dynamic bacterial population succession was analyzed. Results sh... Autori: Bin-song Wang ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26165
DYNAMICS OF LAND USE/ COVER CHANGE IN IRAQI MARSHLANDS USING REMOTE SENSING TECHNIQUES
Environmental Engineering and Management Journal › Vol. 12 › Nr. 9 AbstractThe Iraqi Marshlands, the largest wetland in the Middle East and one of the most outstanding in the world have been lost mainlyas result of drainage and damming. This study analyzed the dynamics of land use/cover change in Iraqi Marshlands Region from1973 to 2011. In this process, we established the land use/cover classification system and remote sensing interpretationcharacteristics. A laminar extraction technique was used in the identification of typical attributes of land use/cover ty... Autori: Hongxia Zhang ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26168
EXPERIMENTAL STUDIES ON THE EFFECTS OF DIFFERENT CARBON SOURCES ON PHOSPHORUS REMOVAL DURING DENITRIFYING PROCESS IN THE PARALLEL A2O-MBR SYSTEM
Environmental Engineering and Management Journal › Vol. 12 › Nr. 9 AbstractA novel parallel A2O-MBR system was developed in this study based on the theory of denitrification with phosphorus removal.By utilizing the denitrifying phosphorus accumulating bacteria (DPB), the carbon source in the influent could meet the needs ofboth the denitrification and dephosphorization processes. Therefore, the carbon source restriction in conventional A2O processeswas resolved. The proposed system was inoculated with the sludge collected from the secondary settling tank in a m... Autori: Liang Wang ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26170
RISK ASSESSMENT AND CLASSIFICATION FOR DETENTION BASINS BASED ON PARTICLE SWARM OPTIMIZATION - SUPPORT VECTOR REGRESSION (PSO-SVR) IN HUAIHE RIVER BASIN, CHINA
Environmental Engineering and Management Journal › Vol. 12 › Nr. 9 AbstractWith global climate change, flood disasters occur frequently and detention basins are facing greater flooding risk. The flood riskassessment of detention basins becomes an important content for the management of detention basins.In this study, the index system of flood risk assessment of detention basins in Huaihe River Basin is established according to thenatural and social properties of detention basins flood disasters. The flood risk assessment methods are proposed based on support ve... Autori: Junfei Chen ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26172
EXPERIMENTAL INVESTIGATION ON WET FLUE GAS DESULFURIZATION WITH ELECTROSTATICALLY-ASSISTED TWIN-FLUID ATOMIZATION
Environmental Engineering and Management Journal › Vol. 12 › Nr. 9 AbstractA wet flue gas desulfurization (WFGD) system adopting electrostatically-assited twin-fluid atomization injector was presented.Spatial distributions of the droplet sizes, velocity for different voltages were measured using limewater and SO2 removalefficiency for different voltages and Ca/S ratios were tested using limewater drops. The physical and chemical improvementmechanisms were analyzed using spray characteristics and double film theory. The analysis showed that electrostatically-ass... Autori: Zhentao Wang ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26175
EXPLORING LANDSCAPE DESIGN OF COMMUNITY PARKS FROM ECOLOGY AND RECREATION PERSPECTIVES
Environmental Engineering and Management Journal › Vol. 12 › Nr. 9 AbstractWith the rapid development of the city, people feel increasingly great pressure. Community Parks are playing more significantroles in people’s daily life. Community Parks with the theme of leisure and recreation provide communication platforms forresidents and have enriched their outdoor activities. The parks not only ease people’s life and work pressure, but also improvecommunication among neighbours. An excellent Community Park not only needs to satisfy residents’ utility requirements,... Autori: Wenting Wu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26176
EFFECTS OF CHLORINE IONS ON THE PHOTOELECTROCATALYTIC DEGRADATION OF ORGANICS USING HIGHLY ORDERED TiO2 NANOTUBE ARRAYS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 9 AbstractAs a new type of photoelectrocatalytic materials, the TiO2 nanotube arrays have drawn a lot of attention for efficientlyphotoelectrocatalytic organic pollutants degradation due to their highly photoelectrocatalytic properties. Yet, the performance ofphotoelectrocatalytic organics degradation using TiO2 nanotube arrays electrode is influenced by Cl-, a kind of typical reducingmaterial. This paper focuses on the effect of Cl- on the different photoelectrocatalytic performance of TiO2 nanot... Autori: Jialing Zhang ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26177
OPTIMIZATION OF CASING WALL DESIGN FOR ELECTROSTATIC PRECIPITATORS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 9 AbstractElectrostatic Precipitator draws many researches on flue gas treatment technology and very few researches on its structural design. The conventional structural design of electrostatic precipitator casing uses stiffened flat sheet as wallboard which consumes a great amount of steel. Consequently, a new structural idea was explored to optimize the conventional design which applies profiled steel sheet and locates wall beam and wall column. Optimization codes were programmed to select the o... Autori: Dengfeng Wang ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26178
EFFECTS OF ACIDIC AND ALKALINE POLLUTANTS ON THERMAL BEHAVIOUR, MICROSTRUCTURE AND MECHANICAL PROPERTIES OF CLAYS
Environmental Engineering and Management Journal › Vol. 12 › Nr.10 AbstractThermal behaviour, microstructure and mechanical properties of the clay polluted by acidic and alkaline pollutants wereinvestigated by thermogravimetric/differential thermal analysis (TG-DTA), scanning electronic microscope (SEM), mercuryintrusion experiments, permeability coefficient and unconfined compressive strength tests. The clay polluted by alkaline solutionpresented distinct exothermic peaks at 304-310oC, while it’s not observed for the one polluted by acidic solution due to thed... Autori: Zhao Ying ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26182
WETLAND ECOSYSTEM SERVICES BASED ON EMERGY ANALYSIS OF LAKE NANSI IN SHANDONG, CHINA
Environmental Engineering and Management Journal › Vol. 12 › Nr.10 AbstractAdopting the theories and methods of emergy analysis, the annual average emergy input-output of the Lake Nansi wetlandecosystem is calculated. Further, the emergy analysis chart is drawn to evaluate the energy flow and the economic value of thelake. The structure and functions of the Lake Nansi wetland ecosystem are analyzed as a whole. The results showed that theamount of the input solar emergy (including sunlight, wind and rainfall) of the Lake Nansi is 1.11×1021 1021 solar emergyjoule... Autori: Liang Chunling ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26183
FORECASTING THE INFLUX OF VISITORS TO STATE PROTECTED WILDERNESS AREAS IN CHILE
Environmental Engineering and Management Journal › Vol. 12 › Nr.10 AbstractThis study estimates the number of visitors to State Protected Wilderness Areas (SPWAs) in Chile by origin (national andforeign), using annual data from 1986 to 2011. Two linear regression models were used: one to estimate the number of Chileanvisitors and the other for foreign visitors. The model to predict Chilean visitors in 2013-2014 incorporates the GDP per capita inChile, the annual trend in the conditions of international economic crises, while the model to predict the number of f... Autori: Jaime Pérez-Kallens ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26189
ENVIRONMENTAL SUSTAINABILITY MEASURES AND THEIR IMPACTS ON HOTEL ROOM PRICING IN ANDALUSIA (SOUTHERN SPAIN)
Environmental Engineering and Management Journal › Vol. 12 › Nr.10 AbstractThe purpose of this paper is to analyze the impact on rooms pricing of environmental management practices in the hotels ofAndalusia (Southern Spain). Empirical evidence is obtained using a database that was created as part of the project Quality,Productivity and Competitiveness in the Hospitality Industry for Andalusia (PO7/SEJ-02889). From this database, we use asample statistically representative of hotels in the region and applied a hedonic pricing model. The main reason for using thi... Autori: Alejandro García-Pozo ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26192
APPRAISAL OF ENVIRONMENTAL REGULATIONS ON SUSTAINABLE CONSUMPTION OF WATER IN THE WINE-PRODUCING SPANISH INDUSTRY
Environmental Engineering and Management Journal › Vol. 12 › Nr.10 AbstractThe aim of this work consists of presenting the need to improve the tributary regulation in order to stimulate the suitablemanagement of the water in the process of production of the wine. In this sense, it is analyzed the influence of the cost of thewater and the different taxes associated with the discharge of wastewater in order to encourage the system implantation of water recycling in the wine-producing Spanish industry. For that, it is studied the actual case of a winery, of its ne... Autori: Isabel M. Román-Sánchez ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26193
UNRAVELLING THE RELATION BETWEEN THE ENVIRONMENTAL PROACTIVE ORIENTATION OF FIRMS AND THEIR ECONOMIC PERFORMANCE
Environmental Engineering and Management Journal › Vol. 12 › Nr.10 AbstractEnvironmental proactivity is a key research topic as it arises as a value-adding creator and therefore constitutes a competitiveadvantage for companies. In this paper, we classify industrial companies according to their environmental proactivity and thenwe determine whether their economic performance differs in relation to the firms’ environmental position. We analyzed 132Spanish industrial firms located in the Valencian region and apply quantitative methods to conduct the analysis. The ... Autori: María-del-Val Segarra-Oña ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26194
ON THE ROLE OF ENVIRONMENTAL SUSTAINABILITY IN THE TRANSFORMATION OF TOURISM GROWTH INTO ECONOMIC DEVELOPMENT
Environmental Engineering and Management Journal › Vol. 12 › Nr.10 AbstractThough at a first sight the potential of tourism was advocated, without any doubt, as an routine tool for improving the welfare ofthe population, in recent years several works have appeared that criticize the universal validity of tourism as a development tool,whose premise is that the relationship is not automatic between the two dimensions, but instead a country must meet certaincharacteristics in order for this link to occur and, therefore, calls into question the solution implemented... Autori: Juan Ignacio Pulido-Fernández ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26197
RECONSIDERING ECONOMIC COAL RESOURCES IN DRAFTING ENERGY STRATEGIES. THE CASE OF ROMANIA
Environmental Engineering and Management Journal › Vol. 12 › Nr.10 AbstractGlobal energy demand is following a strong upward trend. As highlighted by the latest analyses the overall black coal resourcesare able to satisfy human needs for more than 200 years including the particular case of intensive exploitation. According to theInternational Energy Agency (IEA) renewable energy and natural gas resources have encouraging perspectives for furtherexpansion. Even so coal will continue to cover almost a quarter of primary energy resources needs. The EU is currently... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26199
APPLICATION OF A DECISION SUPPORT SYSTEM TO THE TRANSPORT OF HAZARDOUS MATERIALS
Environmental Engineering and Management Journal › Vol. 12 › Nr.10 AbstractThe transport of hazardous substances is an essential economic activity because it represents a quite relevant percentage of thetotal goods transportation. The risk associated to such an activity is fundamentally related to the possibility of an accidenttriggering that may cause negative environmental and public health consequences. A recent example is the Viareggio accident(2009), which involved the blast of tank wagons containing liquefied petroleum gas (LPG) and caused more than thirt... Autori: Vincenzo Torretta ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26200
LOW-COST TECHNOLOGIES FOR SAFE DRINKING WATER IN SOUTH-EAST ASIA: OVERVIEW AND APPLICATION TO THE NORTH OF VIETNAM
Environmental Engineering and Management Journal › Vol. 12 › Nr. 11 AbstractIn spite of the ambition of the Millennium Development Goals (MDGs), water supply and sanitation are still worryingly deficientin South-East Asia (SEA). Due to the rapid increase in population, increased urbanization and industrial activities, and absence ofa strong regulatory framework, water quality in this region is impaired due to the high levels of contamination. Because of thechallenge of providing safe drinking water from poor quality water sources, development of low-cost drinkin... Autori: Pham Thi Thuy ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26202
ADSORPTION KINETICS OF REMOVAL OF YELLOW LANASOL DYESTUFF USING GALLINACEOUS FEATHERS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 11 AbstractGallinaceous feathers are an abundant solid waste from the poultry processing industries, which poses disposal problems. Akinetic study dealing with the adsorption process of wool reactive dye, Yellow Lanasol 4G (CI Reactive Yellow 39), ongallinaceous (Gallus gallus, Cobb 500) feathers was carried out. The main research goals of this work were to evaluate theviability of using this waste as adsorbent and to study the kinetics of the adsorption process, using a synthetic effluent. Thechar... Autori: Sónia Adriana Figueiredo ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26203
STUDENTS’ ENTREPRENEURIAL COMPETENCIES AND ORIENTATION: CURRENT STATUS AND PERSPECTIVES
Environmental Engineering and Management Journal › Vol. 12 › Nr. 11 AbstractCurrently one can witness a revolutionary change in teaching/learning strategies and an evolution which should reconsider therelation between educational institutions, teaching staff, and students, on the one hand, and economic agents, public or privatecompanies, firms, and NGOs, on the other. Despite the large amount of research focusing on the entrepreneurial phenomenon,there has been limited focus on the effect of education upon enterprise performance in terms of venture creation and ... Autori: Gabriela Boldureanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26204
EFFECTS OF NATURAL AND MODIFIED MONTMORILLONITE ON PLANT AVAILABILITY OF Cd(II) AND Pb(II) IN POLLUTED SOILS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 11 AbstractSimultaneous uptake of Cd(II) and Pb(II) by corn in two artificially contaminated soils (sandy and sandy loam) amended withtwo doses of natural (NM) and modified (MM) montmorillonite were investigated in a pot experiment under greenhouseconditions. Results showed that the addition of NM and MM to sandy loam soils didn’t have significant effect on the uptake ofCd(II) by roots, then is translocated to the aerial tissues. On the contrary, uptake of Cd(II) by shoots was increased in potscont... Autori: Hadis Hosseini ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26205
STUDIES ON EXCESS SLUDGE REDUCTION AND MICROBIAL COMMUNITY GROWING IN A NOVEL A+OSA REACTOR
Environmental Engineering and Management Journal › Vol. 12 › Nr. 11 AbstractExcess biomass produced in the degradation processes of organic pollutants is creating environmental challenges for wastewatertreatment plants. The A+OSA system, a modification of the anoxic / oxic (A/O) process via insertion of a sludge holding tankinto a sludge return line, has been demonstrated to be capable of achieving simultaneous nutrient removal and sludge reduction.Here we report the results of an investigation aimed at evaluating the impact of the sludge holding tank on the bio... Autori: Li Jia ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26207
EFFECTS OF TEMPERATURE ON THE PROPERTIES OF PINE AND MAPLE LEAF LITTER ASH. A LABORATORY STUDY
Environmental Engineering and Management Journal › Vol. 12 › Nr. 11 AbstractThe dominant litter samples Pinus sylvestris L. needle litter and Acer platanoides L. leaf litter were collected in the coniferousmixed forest located at 54º43‘ N 25º19‘ E (Vilnius, Lithuania) in April 2010. Different heating temperatures (150, 250, 350, 450and 550ºC) and 2 hour heating duration were used to produce ashes. The selected heating temperatures affected mass loss, colour, pH, electrical conductivity (EC), C/N ratio, nutrient concentrations of the ash. The darkness of Munsell ... Autori: Jolita Dūdaitė ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26208
REMOVAL OF ACID BLACK DYE BY PUMICE STONE AS A LOW COST ADSORBENT: KINETIC, THERMODYNAMIC AND EQUILIBRIUM STUDIES
Environmental Engineering and Management Journal › Vol. 12 › Nr. 11 AbstractThe removal of Acid Black 1 dye was investigated by acid treated pumice stone as a low cost adsorbent, since acidicmodifications were expected to improve the sorption capacity. The main components of the considered adsorbent were SiO2 andAl2O3 and acid treated pumice shows irregular structure. The effect of various parameters such as the initial dye concentration,the contact time, the temperature and the pH were studied. An increase of the contact time, the initial dye concentration or a... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26211
ENHANCED REMOVAL OF FECAL BACTERIA BY ZINC-MODIFIED ZEOLITE IN AN INTERMITTENT MEDIA INFILTRATION SYSTEM Environmental Engineering and Management Journal › Vol. 12 › Nr. 11 AbstractThe reuse of a wastewater treatment system was investigated using intermittent media infiltration (IMI) to evaluate the fecalcoliform (FC) removal efficiency with natural zeolite containing clinoptilolite from the state of San Luis Potosí, Mexico and itszinc-modified form (Zeo-Zn). The municipal wastewater, which was from Saltillo, Coahuila, Mexico, was treated for FC analysisfor four months. The physicochemical properties of zeolite were analyzed, and their behavior as filter media for ... Autori: Sasirot Khamkure ISSN: |