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

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

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

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

Include urmatoarele articole:� Synthesis of Ferrierite/ZSM-35 type zeolite with ethylenediamine as template� Recovery of p-hydroxybenzoic acid from wastewaters by reactive extraction 1. Extraction mechanism and influencing factors� Relationships between metals extent and cytological characteristics at Prunus persica L. pollen� Smoke Emissions From Diesel Vehicles: A Case Study� Carbon dioxide generation - implications for romanian pulp and paper industry � Enhanced decolorization of ...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25208

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

AbstractThe project’s idea is really simple: using the LabView environment, we have realized a virtual instrument able to get from the GPS the information about latitude, longitude, altitude and from a prototype data acquisition board for environmental monitoring parameters the information about air pollution factors. The perfect solution regarding the costs, the covered area and the accuracy of the measured data is the use of a glider for flight, because of its characteristics: free flights (...
Autori: , Codrin Donciu, Marius Branzila, Marius Paslaru, Romeo Cristian Ciobanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25221

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

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

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

AbstractAs answer to European Community politics, in Romania the researches for waste reworking and ecological treatment are developing. The researches are focusing on wood wastes for its recovery in energy purposes. The purpose is the enlargement of superior coal utilization area obtained from Jiu Valley coal field, for increasing the efficiency of heating installations for domestic consumption, concordantly to European and Romanian pollutions regulations.Combined utilization of the fuel compos...
Autori: Camelia Bădulescu, Eugen Traistă, Gheorghe Lăzăroiu, Maria Orban, Valeriu Plesea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25267

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

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

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

AbstractSelf-regulation can be defined as a public scheme in which private parties volunteer to meet standards established by public authorities; this is the case of the European Commission's eco-management and audit scheme (EMAS). The EMAS aims at promoting improvement in industry's environmental performance by the implementation of company-level environmental management systems, and the systematic evaluation of performance by accredited auditors. Self-regulatory initiatives have in common a co...
Autori: Voicu - Dan Dragomir
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25283

AbstractSoil pollution causes significant damage to the environment and human health as a result of their mobilities and solubilities.Significant progress has been made in regulating soil pollution, with a parallel development of methodologies for soil assessmentand remediation. The selection of the most appropriate soil and sediment remediation method depend on site characteristics, concentration, type of pollutants to be removed, and the end use of the contaminated medium. The approach include...
Autori: Attar Singh Sheoran, Poonia Poonam, Vimla Sheoran
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25291

AbstractThe paper proposes a suitable solution for a one step treatment process of the wastewaters resulted from the textile industry, using a mixture of anatase and modified fly ash. The dyes photo-degradation on TiO2 anatase is well known. The use of fly ash in advanced wastewater treatment, for heavy metal adsorption, represents an environmental friendly process, efficient if the fly ash surface charge is controlled by solubilisation/reprecipitation. The first step in implementing the single ...
Autori: Anca Duta, Maria Visa
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25292

AbstractThe aim of this paper was to accurately analyze the sources of water pollution and loading concentrations in textile finishing mills. A process data collection was performed and integrated with a characterization of the process effluents in terms of treatability and reusability. In order to evaluate properly the wastewater loading, an analysis course was set. The samples have been gathered for two months; instantaneous samples (PI) were drawn from the wastewater, as well as from the pain...
Autori: Irina-Isabella Savin, Romen Butnaru
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25314

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

Include urmatoarele articole:� Composite membranes with cross-linked matrimid selective layer for gas separation� Determination of organic compounds from different types of coffee by Hplc and Gc-Ecd analysis� An integrated assessment of the suitability of domestic solar still as a viable safe water technology for India� Investigations on the possibility of natural hemp fibers use for Zn(II) ions removal from wastewaters� Removal of acid red 398 dye from aqueous solutions by coagulation...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25340

AbstractThe soil is a fundamental component of both urban and rural environment, the main reason behind the fact that the protection of soil and subsoil is a matter of national importance. By its position and characteristics, the soil is, in fact, the convergence area of all the pollutants, of which the most are airborne. The present paper, which presents the sources of heavy metals as well the impact of those on the soil from Vaslui county, is part of a series of papers published as preparation...
Autori: Mihaela Budianu,
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25343

Abstract        The sorption of metal ions from aqueous solution plays an important role in water pollution control and in recent years there has been considerable interest in the use of low-cost adsorbents. Many researchers have tried to exploit naturally occurring materials as low-cost adsorbents, for removing of heavy metals. In this article the removal performance of various low-cost adsorbents derived from agricultural waste or natural material is evaluate...
Autori: Raluca Maria Hlihor, Maria Gavrilescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25379

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

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

Include urmatoarele articole:� CsHSO4/mesoporous silica composites - new electrolytes for solid acid fuel cells� Trend in exhaust emissions from in-use gasoline vehicles� Analysis of distribution of oxygen transfer rate in stirred bioreactors for bacterial broths� Electrochemical characteristics of Ti6Al7Nb alloy in Ringer's solution� Pulsed high voltage discharge technology as a new method for killing Hepatitis C virus (HCV) cells� Hydrodynamic modelling of pollution with LNAPL gene...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25367

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

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

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

AbstractThe paper describes in brief the electro-osmosis process and reviews the possibility to use it in dewatering the pulp and paper waste sludge. The waste sludge main characteristics and dewatering methods from the Vrancart SA factory are revealed. After the experimental method and test bench description, some results from the preliminary laboratory tests on the Vrancart SA sludge are presented and discussed....
Autori: Dorin D. Lucache, Adrian Bulgaru, Dan Ioachim, Elena Danila
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25392

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

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

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

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

Abstract According to several factors, the infringement of environmental regulations can be considered a simple contravention or a crime. The present approach aims to discuss the conditions for involving criminal responsibility according to the nature of environmental crimes. Our considerations related to serious noncompliance that harms the environment focus on pollution crimes and legal infringements, in relation to the personal characteristics of criminal law responsibility. ...
Autori: Ionel Bostan, Aurel Burciu, Petru P. Condrea, Gheorghe Durac
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25425

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

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

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

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

Abstract This paper presents an experimentally study of the anionic iodide separation from a mixture with immobilized liquid membrane. The experiments were carried out in a double jet installation. In order to intensify the transfer of iodide ions from the source phase to the receiving phase, the both phases are dispersed as droplets in the membrane and the hydrodynamic parameters of the dispersed phases are measured with the photographic method. The photos of the droplets were taken with a C...
Autori: Mihaela Emanuela Craciun, Mihaela Mihai, Gheorghe Nechifor
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25476

Abstract The evolution of the request in wood production leads to larger stem wood consumption, intensive harvesting and consequently the environmental impact increases. One of the most ignored secondary resources in spite of limited reserves, branch wood could be used in new added value products as an alternative to stem wood, providing its characteristics are known and understood. This paper is part of a larger research project, which here compares the compression strength parallel to the g...
Autori: Lidia Gurau, Marina Cionca, Cristina Timar, Alin Olarescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25492

Abstract Biofuels represent a possibility for renewable resources conversion, storage and distribution. Today, diesel oil is commercialized only blended with biodiesel, and according to the 30/2003 Directive of the EU, 5.75% of the total fuels used in the transportation sector must be represented by biofuels by the end of 2010. Biodiesel can be produced from vegetable oils, animal fats and used oils. Viscosity is one of the most important characteristics of liquid fuels. The viscosity of liqu...
Autori: Irina Nita, Dan Mandalopol
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25499

Abstract Waste management hierarchy has as priorities waste recycling and energy recovery. Unfortunately, Romania is in the situation so as the waste landfilling is still considered as a suitable solution for waste management. European Union imposed a number of regulations and programs in the field of waste treatment and management that Romania must comply. The paper describes some aspects regarding characterization of the leachate originating from the Tomesti landfill (situated in Iasi County...
Autori: Ana-Maria Schiopu, Brindusa Mihaela Robu, Ion Apostol, Maria Gavrilescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25523

Abstract Peat moss has been widely used as low-cost adsorbent to remove a variety of pollutants, including organic compounds and metal ions from aqueous effluents. Various functional groups allow such compounds to bind on active sites of peat moss. The adsorbent used in this study was Romanian peat moss sampled from Poiana Stampei (Romania). The adsorption of Co(II) ions from aqueous solutions on Romanian peat moss was studied in batch experiments, in order to establish the influence of initi...
Autori: Corneliu Caramalau, Laura Bulgariu, Matei Macoveanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25533

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

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

Abstract Withania frutescens plant from the south-western Morocco was used as an environmentally friendly material for the removal of As(V) ions from aqueous solutions. This work presents the characteristics of the adsorption and the desorption processes of As(V) using the dried W. frutescens plant as an environmentally friendly adsorbent. The mass of the adsorbent, the As(V) concentration, the contact time and the pH of the tested aqueous solutions were used as controlled variable parameters...
Autori: Mohamed Chiban, Gabriela Lehutu, Fouad Sinan, Gabriela Carja
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25568

Abstract This work describes the preparation of a hydroxyapatite/polyurethane composite membrane and their characteristics. The porous hydroxyapatite/polyurethane composite membranes were made via solvent casting process. The deposited hydroxyapatite layers were investigated by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The data suggest that the method utilized in this work can be applied to obtain deposition of coating of crystalline hydroxyapatite on porous polyurethane...
Autori: Gabriela Ciobanu, Dorina Ignat, Gabriela Carja, Constantin Luca
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25572

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

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

Abstract The use of biomaterials as biosorbents for treatment of wastewaters will provide as a potential alternate to the conventional treatment methods. The main advantages of biosorption are high selectivity , cost effectiveness and good removal performance. World wide numerous low cost bio materials have tried for biosorption of dyes. In this present investigation, the dead biomass of Penicillium sp. fungus and wood sawdust was used as biosorbents and their capacity to removed malachite gr...
Autori: Cornel Pohontu, Florin Luca, Igor Creţescu, Manea Liliana, Mariana Diaconu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25593

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

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

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

? 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

? 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

? 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

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

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

This study was aimed to explore root spatial distributions on the different sizes of belt spaces in the caragana-grass compound system in Siziwangqi county, Inner Mongolia. The root spatial distributions were observed at selected typical sample plots within the 5m, 10m and 16 m belt-space caragana - grass compound systems. The area of roots spatial distributions were highly correlated with the caragana-grass compound system belt space. Root distribution area was found to decrease with soil depth...
Autori: Yongjun De, Huijun An, Qiuju Guo, Dongmei Ye, Liansheng Guohttp://www.ecozone.ro/reviste.php?RID=25681

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

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

Considering the membrane fouling problem in submerged anaerobic membrane bioreactors, a set of submerged double-shaft rotary anaerobic membrane bioreactor (SDRAnMBR) was constructed by applying a double-shaft rotary module to submerged anaerobic bioreactor, and the theoretic analysis of the characteristics of hydraulics dynamics in SDRAnMBR has been performed. The membrane fouling performance for treatment of synthetic brewery wastewater was investigated by SDRAnMBR. The results of a theoretical...
Autori: Ling Bai, Chao Liu, Weiguang Lanhttp://www.ecozone.ro/reviste.php?RID=25694

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

Slag-Fly Ash Based cementitious material materials with high volume of fly ash and slag and less cement clinker was prepared, with low water requirement, well fluidity and with high strength, and can be used to the preparation of High Performance Concrete (HPC). When the W/C is 0.36, the 28d compressive strength is 58.93 Mpa, 28d flexural strength is 14.26 Mpa. By XRay diffraction analysis (XRD) and Scanning Electron Microscope (SEM) analysis, the results show that main materials in grinded samp...
Autori: Chenghong Fu, Wen Ni, Hui Wu, Mingyang Tianhttp://www.ecozone.ro/reviste.php?RID=25708

The permanent magnet EDS train has been considered to be one of the most promising urban transportation vehicles due to its particular characteristics: simple configurations, low energy consumption, low noise, and suitable for high speed conditions. In order to study the characteristics of permanent magnet Electrodynamic Suspension (EDS) system, an experimental mechanism was established in this paper. The optimization of Halbach magnet array has been carried out and appropriate track for the EDS...
Autori: Zhiqiang Long, Guang He, Ning He, Zhizhou Zhanghttp://www.ecozone.ro/reviste.php?RID=25713

Chemical composition data of coalbed produced water can provide information to determine the water sources, understand the evolution, select appropriate treatment processes and increase the utilization efficiency of water resources. Based on methods of hydrogeology, water chemistry and environmental chemistry, the characters of coalbed produced water in the Powder River Basin in the USA and Qinshui Basin in China have been analyzed. Conclusions have been drawn as follows: (1) The coalbed produce...
Autori: Guang Xu, Li Tong, Mei Yang, Yi-wen Juhttp://www.ecozone.ro/reviste.php?RID=25715

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

Abstract:This paper aims to analyze two types of wooden briquettes made from different raw material, in order to determine thecompactness of the wood used, namely their compaction coefficient. This factor is a new feature of briquettes that defines moreprecisely the quality of them. The density of raw material and briquettes causes the compaction coefficient, namely the ratiobetween them. Relevance of research and scientific innovation results from the fact that European standard of wooden briqu...
Autori: Aurel Lunguleasa
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25753

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

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

� 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

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

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

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

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

The most important argument of this experiment was to demonstrate an increased content of active principles under the influence of some substances (considered in the literature as mutagene), when used in low concentration, do not affect the environment. The purpose of this study was the selection of some treatment variants, which, during the experimentations show the same biosynthetic potential, stabilized or increased. The substances used in the experiment were ethidium bromide at the concentra...
Autori: Constantin Leonte, Marius Zaharia, Roxana Vatavu, Teodor Robu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25867

Since the last century, as a consequence of advanced industrialization, the remarkable growth of population, and its mobility have turned the field of transport into the main factor responsible for air pollution attributable to mobile sources of pollution. The continuous accumulation of various pollutants in the environment determines severe consequences on humans, animals and plants, buildings, works of art and landscape. Road transport represents, through its characteristic features – high f...
Autori: Gabriela Mitran, Ion Tabacu, Sorin Ilie, Viorel Nicolae
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25898

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

Geochemical cycling of reduced inorganic sulfur in sediments may affect water quality. This study investigated the reducedinorganic sulfur distribution and environmental behaviour in superficial sediments in different watersheds and coastal zones inBohai Bay, China. Acid volatile sulfur (AVS), chromium (II)-reducible sulfur (CRS) and elemental sulfur (ES) distributed insurface sediment were quantified. Total organic carbon and total nitrogen were presented in higher concentrations in the fluvial...
Autori: Robert Mortimer, Simon Bottrell, Wenjing Shi, Yanqing Sheng
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25959

AbstractA comprehensive evaluation methodology for water environmental carrying capacity (WECC) has been proposed. It is based ona new definition of WECC and reasonable evaluation models compared with vector norm method for water resources supply,environmental assimilative capacity, and society supporting capacity. Evaluation index of WECC is determined for Xi’an city,depending on characteristics of the water environment in Xi’an and selection principles of WECC evaluation index. Three-layerstru...
Autori: Jun Zhang, Qi Zhou, Ya-qian Zhao, Yani Geng
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25960

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

AbstractAdaptive implementation is important for implementing projects that are complex and dynamic. The two cases chosen in thisarticle are longer - term, integrated and multi - purpose projects where adaptive implementation is part of a modern approach towater management. This article provides the results of an analysis of two stream restoration cases, one in Canada and the other inthe Netherlands. The cases are used to identify strategies for implementation of projects that attempt to improve...
Autori: Cheryl de Boer
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25978

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

AbstractThe transmission line pulse (TLP) method it is one of the most advantageous electrostatic discharge (ESD) testing method forsemiconductor devices. A new factual approach is developed in this paper which is based on TLP method. The new method isnamed “very-fast transmission line pulse” (VF-TLP), having as principal characteristics the very short pulse width and small risetime. The appropriate device under test (DUT) is a gate-grounded (GG) NMOS transistor. The testing signal was applied o...
Autori: Alexandru Salceanu, Ana-Maria Nicuta, Paul Bicleanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25992

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

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

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

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

AbstractIn this paper we analyzed some characteristics of vacuum sewer systems from technical, economical, environmental and socialperspectives. The vacuum sewer systems transport wastewater with lower pressure (p<pat), and are compared to conventionalsewer systems with free level (p = bed) - gravity and under pressure systems (p>pat) - gravity or pumping systems. Vacuumsewer systems are recommended for rural communities and residential neighbourhoods surrounding urban areas, developed ons...
Autori: Corina Panfil, Ion Mirel, Izabella Szigyarto, Monica Isacu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26035

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

AbstractIncreasing the labor force employment and participation rates is sustained by capitalization of human opportunities existent inrural areas. This entails a flexible and inclusive labour market and a decreasing rate of exclusion for some rural groups.This paper highlights the need of facilitating the access to the labour market by achievement of professional skills needed in nonagriculturalsectors from rural areas for the vulnerable groups as well as the entrepreneurial groups. The analysi...
Autori: Carmen Olguta Brezuleanu, ,
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26059

AbstractThe global diming means a gradual reduction on the earth's surface of global direct irradiance. The global dimming blocks thesunlight that would otherwise cause evaporation, thereby interacting with the global warming. In order to determine somecharacteristics confirming the global dimming were conducted a series of measurements of temperature and luminosity in Iasi.The purpose of the study was to link the urban pollution to the decrease in the solar luminosity during the time of a month...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26065

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

AbstractTraditionally, sanitary papers are obtained from virgin cellulosic fibers. Because the production of virgin fibers requires largequantity of wood it is an unsustainable process. In addition, virgin fiber pulp is expensive and deficient, being unattractive forpaper producers. Using of virgin fiber is a waste, because sanitary papers cannot be recovered. Due to the fact that the price ofsanitary papers must be as low as possible, the paper mills focused on the use of recovered fiber as raw...
Autori: Dan Gavrilescu, Iftimi Viorel, Roxana Vlase
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26067

AbstractThis paper presents the results of the research analyses and laboratory studies, aiming to develop design guidelines and suitabletechnologies for the construction of durable and environmental friendly rigid pavements by using recycled cement concrete,resulted from various demolition works. Various recycling principles and technologies, specific laboratory methods of improvedtechnical solutions to enhance wear coefficients, density homogeneity, mixture contamination and water absorption o...
Autori: Marius Muscalu
ISSN: 1843 - 3707Abstract This paper presents the results of the research analyses and laboratory studies, aiming to develop design guidelines and suitable technologies for the construction of durable and environmental friendly rigid pavements by using recycled
http://www.ecozone.ro/reviste.php?RID=26098

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

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

Abstract Municipal waste landfill leachate results in different stages of waste stabilization and has a negative impact on the environment. When implementing a new policy on waste handling, monitoring landfill leachate should be carried out under conditions of a modern solid waste landfill. The paper discusses the quality of leachate observed in old and recently built landfills in Vilnius - the capital city of Lithuania. The landfills are situated at a distance of 20 kilometres fro...
Autori: Kristina Baziene
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26151

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

AbstractSurface mining has the most obvious and direct influence on ecology. It has great effects on the vulnerable ecologicalenvironment in Shendong coalmine area. Therefore, it’s necessary to develop an ecological protection technology whichcontributes to a positive evolution of the open desert mining area. In view of the natural conditions, soil characteristics andfeatures of ecological functions of Majiata open-pit coalmine, technology of in-situ ecological construction of desert open pitcoa...
Autori: Yongkang Yang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26164

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

AbstractStudying the relationship between urban typical landscape functional types and vegetation communities will conduct toinformation on management measures, people’s activities etc. Moreover, this could attain an important role for the research ofother ecological phenomena where human activities are involved. According to the data collected from the said plots, the impactof typical landscape functional types of urban core areas on the plant species was analysed. The results show that indigen...
Autori: Yantun Song
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26169

AbstractWith the adoption of lab physical simulation, this paper has studied the moving characteristics of overlying strata and thedevelopment rules of water-flowing fractured zone in multi-excavation disturbed zone in close-distance seams, and analyzed thefeasibility of water-preserved mining in multi-excavation disturbed zone. The experiment result has showed that under thegeological conditions of Suancigou Coal Mine, after the upper slicing mining of upper-6 coal seam, the development height ...
Autori: Liqiang Ma
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26173

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

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

AbstractConsidering the advantages of steel surface hardening, when less expensive low- and medium- carbon steels can be surfacehardened without the problems of distortion and cracking associated with the through hardening of thick sections, we developedsome research entailing the increase in environmental performance of iron powders carburizing process using methane as carrier.Apart of studies on optimal working parameters and methods, our research addresses improvements in environmentalperform...
Autori: Olimpia Ghermec
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26198

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

AbstractIn an urban environment, visibility strongly reflects human safety and welfare. Generally, visibility is dependent on particlescattering and absorption. The former is influenced by light wavelength, atmospheric gaseous species and particle characteristics,especially number and size distribution. Therefore, it is necessary to establish the relationship between visibility and particlecharacteristics. Furthermore, it is important to understand the formation mechanism of secondary aerosols. ...
Autori: Chih-Ming Ma
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26221

AbstractRiparian buffers play an important role in improving water quality, providing wildlife habitat, and reducing suspended sedimentsand pollutants entering the water body. The efficiency of pollutant reduction by a riparian buffer is greatly influenced by thewidth of the riparian buffer. In this study, the Soil and Water Assessment Tool (SWAT) model was applied to the YudeungStream watershed, Daejeon Stream watershed, and Gap Stream watershed to determine the most effective width of the ripa...
Autori: Jongpil Moon
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26223

AbstractBased on the measurement at a coastal site in the Yangtze Delta, the temporal variation characteristics of ozone and theinfluences of the precursors (NO, NO2, and CO) and meteorological conditions were analyzed. Also the crop yield loss by ozoneexposure at the site was estimated and discussed. The variation of daytime ozone showed a two-peak pattern during the year with one peak in spring and the other in summer, while the nighttime ozone just presented one peak in spring. The diurnal va...
Autori: Wenpo Shan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26231

AbstractIn this article, hydrodynamic parameters and overall Oxygen mass transfer coefficient of petroleum based micro-emulsions in anairlift reactor were investigated. Four different petroleum-in-water micro-emulsion systems containing kerosene, heavy naphtha,light naphtha and diesel as oil based were used with concentrations of 3% and 7 % (v/v). The experimental data were supportedby simulation results obtained from the Computational Fluid Dynamics (CFD) method. The CFD was properly able to si...
Autori: Mostafa Keshavarz Moraveji
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26234

AbstractThe paper analyses the opportunity of recycling sewage sludge in the manufacturing of ceramic building materials. Wastewatertreatment plants (WWTP) produce annually a great volume of sludge and its processing become more difficult. On the otherhand, there is an increased need to develop new alternatives beyond the already known methods. The use of WWTP sludge asraw material for the production of bricks may become an interesting alternative, both from an industrial and environmental point...
Autori: Anna-Maria Szőke
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26251

AbstractBased on principles of feeding solid waste into vertical boreholes in fully mechanized coal mining and backfilling technology,the literature established a trajectory model of particles in gas-solid two-phase flow for the sake of reducing the damage tostorage silo underground done by enormous impulsive force generated by falling solid waste. In addition, dynamical analysismethod in gas-solid two-phase flow field was adopted herein to study the solid particles’ force characteristics and th...
Autori: Nan Zhou
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26271

AbstractIn the present work an optimized experimental condition has been developed for the treatment of pulp and paper mill wastewater using an electrocoagulation process. The removal efficiency of 85 % COD and 94 % of color with a good repeatability of results (RSD <3%) has been achieved under the optimal experimental conditions of pH-7, treatment time of 2 h and a current density of 15 A/m2. In this study, wastewater from paper mill has been used and thus, high efficacy of removing the poll...
Autori: Chhaya Sharma, Rajni Sharma, Satish Kumar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26281

AbstractIn the present paper, support vector machines (SVMs) are used to develop a quantitative structure-activity relationships (QSAR) model for the reaction rate constants (-logkNO3) of 115 heterogeneous organic compounds, through reaction with nitrate radicals (NO3•) in the troposphere. Two quantum chemical descriptors used as the inputs for the SVM model were calculated with density functional theory (DFT), at the B3LYP level of theory with 6-31G(d) basis set. The best predictions were obtai...
Autori: Bing Yi, Jiyong Deng, Xinliang Yu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26284

AbstractThis paper presents the results of the removal of arsenite and arsenate ions from an aqueous solution using Fenton modified solid waste vegetable oil industry (SWVOI). Several factors (such as pH, contact time and Fe2+/H2O2 ratio, initial arsenic ion concentration and adsorbent concentration) that affect the arsenic ion adsorption on the SWVOI adsorbent material were investigated. The sorption characteristics of the adsorbent material before modification were also studied and compared wi...
Autori: Hoda Amiri, Mehdi Ahmadi, Nemat Jaafarzadeh, Susana Silva Martínez
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26290

AbstractThe main aim of this study is to evaluate the residents public awareness from water-polluted areas in Tehran city, in terms ofwater quality (in particular nitrate pollution), and to measure their different performance and approaches to this environmentalproblem. For this purpose, district 18 (Yaft Abad, southwest of Tehran) was selected as a case study. A questionnaire wasprepared and distributed randomly among residents of the selected area in May 2011. The data were analyzed statistica...
Autori: Mohammad Mahdi Azadegan, , Reza Maknoon
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26314

AbstractThe distribution and fractionation of nine heavy metals (Cr, Co, Ni, Cu, Cd, Zn, V, Pb and As) in the sediments of Lake Chaohu,a shallow eutrophic lake, were investigated using the BCR sequential extraction procedure. The level of pollution attributed tothese nine heavy metals was evaluated employing the potential ecological risk index (RI) and geoaccumulation index (Igeo). Metalconcentrations in sediments ranged from 65.00~104.00 for Cr, 14.50~21.70 for Co, 28.50~50.90 for Ni, 25.40~51....
Autori: Beidou Xi, Fengyu Zan, Guangchao Zhao, Jing Su, Kevin M. Yeager, Shouliang Huo, Xiujuan Yu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26321

AbstractThe biosorption characteristics of Cd(II) ions using the NaCl-treated Ceratophyllum demersum were studied. The effect ofaltering the conditions, such as solution pH, the biosorbent dosage and contact time for the biosorption of Cd(II), and thebiosorption/desorption studies, were investigated. Langmuir, Freundlich, Dubinin-Radushkevich and Redlich–Peterson modelswere applied to describe the biosorption isotherms. Langmuir model fitted the equilibrium data better than the other isotherms(R...
Autori: Ali Akbar Babaei, Mehdi Ahmadi, Nadali Alavi, Nemat Jaafarzadeh, Pari Teymouri
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26331

AbstractGuazuma ulmifolia seeds activated carbon was modified by sulphuric acid to enhance the adsorption capacity for Cu(II) ions.This modified activated carbon produced from Guazuma ulmifolia seeds (GUAC) was investigated by observing the changes inits characteristics and the Cu(II) adsorption behavior. The prepared GUAC was characterized by BET, FTIR and SEM analysis.The kinetic data were analyzed using four adsorption kinetic models: the pseudo-first and pseudo-second order equations,intrapa...
Autori: Muthukumar Priyadharshini, Palanichamy Baskaralingam, Palanichamy RajKumar, Ponnusamy Senthil Kumar, Selvaraj Dinesh Kirupha, Subramanian Sivanesan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26344

AbstractThe survival of Formosan landlocked salmon has been threatened by the change of habitat ambience. Because of the potentialtoxicity of nitrite (NO2-) and ammonium (NH4+) to salmonid fisheries, we studied the evolution of nitrogen compounddistributions in stream water and their relationship with ambient abiotic factors. The water was sampled at five sites surroundedwith various land-use types in bi-monthly intervals for seven years. The results indicated that a high NO2- concentration occu...
Autori: Wen-Hui Kuan, Yi-Lang Chen
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26351

AbstractA cloud point extraction (CPE) procedure for the simultaneous preconcentration of trace amounts of Cd(II), Pb(II), Cu(II), Co(II)and Ni(II) ions as a prior step to their determination by flame atomic absorption spectrometry (FAAS) has been developed. Thisdeveloped method is based on the formation of hydrophobic complexes of these metals with the chelating agent 1-(2-thiazolylazo)-2-naphthol (TAN), which then are entrapped “in situ” into micellar media of non ionic surfactantoctylphenoxyp...
Autori: Wanli Huang, Zhixia Zheng
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26357

AbstractMost of the European countries have implemented large renewable energy systems that use wind energy, solar energy and waterenergy. In our country only water energy was used for many years. In the last period there is an obvious orientation towards theuse of all types of renewable energy systems, which are both efficient and environmental friendly. The objective of our paper isto design an instrument for the evaluation of the best suited renewable energy system for different areas and typ...
Autori: Monica Leba
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26395

AbstractIn industrial plants many types of combustible dusts are generated, processed, handled and stored. When ignited, they can burnrapidly and with a considerable explosion force, when mixed with air in proper proportions. This is the reason why adequateprecautions have to be adopted, to ensure all equipment is appropriately protected so that the ignition likelihood of the explosiveatmosphere is diminished.Explosion preventing and protection precautions aim to stop explosion occurrence, by el...
Autori: Adrian Jurca
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26406

AbstractMunicipal wastewater, characterized by temperatures of 14-22°C in the inflow of Wastewater Treatment Plants and above 35-40°C in domestic outflows, represents a relevant thermal energy source. A feasibility study of the implementation of heatrecovery from a specific sewer system should take into account several aspects: potential heat capacity (depending on wastewatertemperature and flow rate in the considered area and climate conditions, and on the sewer characteristics), users that cou...
Autori: Silvia Fiore
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26427

AbstractThe right individuation of the more convenient solution for final treatment and destination of sewage sludge deriving fromwastewater plants, normally after anaerobic digestion process, is a very interesting problem, in accounting of urgent needs foracceptable solutions. The produced sludge, primarily after thermal drying, can be sent to energetic valorization processes as, forexample, incineration, gasification and also pyrolysis. In this work we examined the thermal solutions (both dire...
Autori: Deborah Panepinto
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26435

AbstractEvaluation of radon concentration is a very difficult task and a very important issue, in relation to the protection of human health.This is especially the case when there is an increase in concentration of radon on a deterministic basis, as is the case of nearbyphosphogypsum residues or geological characteristics. Radon gaseous that can be found in the environment occurs mainly fromnatural radioactive decay chains. The gamma ray spectroscopy is a powerful tool in order to monitor the en...
Autori: Marius Stamate
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26441

AbstractThe main purpose of the present work was to evaluate the potential of plum (P. domestica L.) tree bark (PDB) to remove Cr(VI)and total chromium from aqueous solutions in batch systems. Experimental data showed that the Cr(VI) and total chromiumremoval capacity was dependent on operating variables such as PDB particle size, PDB pretreatment, solution pH, initial Cr(VI)concentration, and contact time. The mechanism of Cr(VI) removal by PDB implies two simultaneous processes: 1) the reducti...
Autori: Perla Vianey Lopez-Nuńez
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26464

AbstractIn this paper, a study is conducted to assess the ability and the accuracy of a CFD approach concerning the behavior of a linearheat source positioned in a test room. Firstly, the main characteristics of our numerical model (mesh generation, turbulencemodel, near wall treatment, radiation model and boundary conditions) are presented after a briefly description of the test roomtaken into account. In addition, we show also the significance of these issues within our CFD approach. Furthermo...
Autori: Raluca Teodosiu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26467

AbstractIntegration in the European Union has faced Romania with new challenges and objectives out of which sustainable developmentin rural areas is a priority. A diverse and efficient rural economy is needed, capable of generating resources that will increase thequality of life and observe environmental protection. The analysis presented in the paper brings into evidence economic, socialand environmental characteristics from the Romanian rural areas, compared to EU-27 and a series of developed ...
Autori: Camelia Burja
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26457

AbstractWater samples from two types of sources: partially treated sewage generated by a medium-sized city, with a high quantity oftotal coliforms and partially treated industrial wastewater, which contained mostly petroleum products from refineries, weretreated using the same concentration of TiO2 catalyst, for different exposure periods. UV-Vis and fluorescence spectroscopicevaluation of the composition changes of wastewaters under non selective oxidation conditions (achieved by photocatalysis...
Autori: Gabriela Pavelescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26474

AbstractFault-Trees (FT) and Event-Trees (ET) are well recognized techniques worldwide, which have been used by reliability experts infailure analysis of complex technical systems. In risk assessment (RA) of Occupational Health-Safety Systems (OHSS), thesituation is absolutely different, since their application is not quite expanded and has not been extensively incorporated in themain risk assessment methodologies of OHSSs, despite their significance. In this article, we review and classify FT/E...
Autori: Panagiotis Marhavilas
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26483

AbstractThe conducted research has proved the dependence of gas flow rate in the separate channels of the two-level multichannel cycloneat a different inflow velocity and the number of channels. The carried out investigation demonstrates the dependence of changesin velocity in the channels under varying relations between peripheral and transitional flows. The work of a cyclone of the channelis based on centrifugal forces and an additionally occurring filtration process caused by the interaction ...
Autori: Pranas Baltrėnas
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26488

AbstractThis study, analyzes the benthic macroinvertebrates community structure and composition in order to assess the ecological statusas required by the Water Framework Directive (WFD). Macroinvertebrates are the appropriate indicators to describe habitatheterogenity and the water bodies ecological status by turning the allochtone material into biomass, which is then transferred tothe upper trophic levels. Moreover, the macroinvertebrates have the capacity to integrate in their structure the e...
Autori: Catalina Stoica
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26502

AbstractIn this paper, we develop a rigorous theoretical framework and a practical implementation for the evaluation of the energy- andcost-saving potential of buildings. The goal is to promote sustainability in the context of building energetics by achieving themost efficient, optimal exploitation of the financial resources available for refurbishments. The practical realization of thisconcept requires the evaluation of the optimal refurbishment cost that maximizes the net energetic or financia...
Autori: Árpád Csík
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26535

AbstractAn important target of the European Union and national governments is to increase the contribution of renewable energy to thetotal energy supply. According to numerous estimates, the proportion of renewable energy sources of the global energyconsumption could reach 15 to 20 percent by the middle of the 21th century; moreover the total amount of investments inrenewable energy sources could be 2.5 times greater than the current level. This increased investment is definitely achievable duet...
Autori: György Csomós
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26536

AbstractThe thermal excess in a settlement compared to its rural environment is called urban heat island (UHI). It has a significant effecton human comfort in open urban spaces and indoor environment. UHI intensities (the thermal difference between the settlementand its close-to natural environment) are determined by buildup characteristics of settlements as static endowments and synopticweather conditions as dynamic factors. Effects of build-up characteristics are traced in the case of the city...
Autori: Sándor Szegedi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26539

AbstractThe relationship between the use of renewable energy sources and other characteristics of national economies has frequently beeninvestigated, and a wide range of approaches can be observed in publications. The aim of this study to examine the potentialrelationship between the ratio of renewable consumption in gross energy consumption, GDP per capita, and R&D expenditures inEuropean Union countries. Data are analyzed in their original forms, and a mathematical model is presented that ...
Autori: Imre Kocsis
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26542

AbstractAmong the various environmental problems arising today, special attention must be paid to the issues related to energy; inparticular one of the most important tasks to address environmental issues is the decreasing of the energy consumption ofbuildings. As a result, much attention has been given recently to research projects aiming to analyze the technological,economical and environmental features of energy efficient buildings. This paper examines such buildings in four regions ofEurope ...
Autori: Gábor Kozma
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26543

AbstractThe aim of the study is to reveal the energy-efficient technologies, related knowledge and information sources of the populationin the Hungarian Northern Great Plain Region and to gain a understanding of their attitude towards the implementation of thesetechnologies. The survey included questions about the alternative building technologies as well as the cost burden limits ofconsidering their application. Special attention was given to getting information about the energy characteristics...
Autori: János Pénzes
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26547

AbstractIn Central European countries, heating represents approximately 75% of the total energy use of a residential building, withaverage thermal characteristics of the envelope. The expected energy use can be determined using complex simulation programs,but an easier way is to use specific degree day values. Degree day values should be calculated as precisely as possible. At presentin Hungary, the degree day values that are used for simplified energy calculations were determined several decade...
Autori: Zoltán Verbai
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26551

AbstractAnaerobic degradation (AD) of municipal solid waste (MSW) depends on the moisture and nutrient distribution within thebioreactor; these factors are affected by leachate recirculation. In this work, the effects of leachate recirculation of 15 to 120 byvolume percentage (%V) on AD were studied. The ojectives of this study are as follows: a) to determine which recirculation rateprovides the best conditions for accelerated anaerobic degradation (AD) and b) to determine the optimal range of r...
Autori: Maria del Consuelo Hernández-Berriel
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26557

AbstractThe hotel industry constitutes a major sector of the wider tourism industry and, in common with other industries, hospitalityoperations inevitably entail environmental impacts. Requirements for corporate financial reporting are commonplace, but publicdisclosure of the environmental effects of organizations’ economic actions - referred to as environmental reporting – whilegenerally only a voluntary commitment offers a potentially valuable contribution towards assessing the industry’s glob...
Autori: Patricia Milanés-Montero
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26572

Abstract Toxic chemical nature of tannery wastewater makes it difficult to be treated by routine biological treatment processes. Microbes, already present in tannery wastewater can adapt to these conditions and degrade the organics in tannery wastewater. In the present contribution, three bacterial electrogenic strains, tolerant to tannery environment, were isolated from soil contaminated with tannery waste and named as BS1, BS2, and BS3. Tannery wastewater was treated with these pure and mi...
Autori: Abhilasha Singh Mathuriya
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26588

Abstract Embankment works modify the river and floodplain hydrology by interrupting the transversal connectivity of the water bodies. The altered river flow regime affects riparian wetlands. This paper describes the rehabilitation possibilities of embanked areas by restoring connectivity of the river and topographically low zones on the floodplain (oxbows, backwaters, brooks). The following measures are proposed: refreshing inland waters from the river during droughts and evacuation of the e...
Autori: Josif Bartha
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26609

Abstract The objectives of this paper address the identification and statistical analysis of the laws underlying the variability of the magnitude of the damages to torrent control structures induced by four of the most well-known events affecting their stability, resistance and durability. The research set consists of 100 torrent control structures that have continuously functioned for almost three decades in a managed torrential watershed in the forested mountainous area of Romania. In the ...
Autori: Ioan Clinciu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26619

Abstract This study examined the characteristics of geopolymer with solar panel waste glass. After 28 days of curing, the compressive strengths of the geopolymer samples containing 10 mass % and 20 mass % solar panel waste glass were 63.3± 1.8 and 49.1 ± 2.2 MPa, respectively. The geopolymer sample with 10% solar panel waste glass exhibited a stronger reaction than that with 20% solar panel waste glass, and the strength decreased as the amount of solar panel waste glass increas...
Autori: HuiCong Hao
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26621

Abstract The purpose of this study was to investigate the influence of hydroxypropyl-β-cyclodextrin on diosmin, substance from the flavones category with important pharmacological properties. We carried out solubility studies, calculating the solubility constant of the complex formed between diosmin and hydroxypropyl-cyclodextrin at various temperatures (20, 25 and 37 0C) and in the presence of increasing cyclodextrin concentrations. AL type curves were obtained which suggest the format...
Autori: Constantin Ciobanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26643

Abstract Established applications of emulsion liquid membranes (ELM) refer to refining in hydrocarbons and hydrometallurgical processing, rehabilitation of poisoned patients. In this work we investigated the separation of aromatic compounds of biological interest, more often encountered as intermediates in dyes and drugs industry: aniline, nitrobenzene, ortho and para-toluidine, using emulsion liquid membranes. The experimental results showed that in the case of basic substances separation t...
Autori: Alexandra Raluca Miron
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26650

Abstract Biochar derived from agricultural biomass waste is increasingly recognized as multifunctional material for various applications according its characteristics. It is therefore essential to investigate biochar properties before large-scale application. In this study, rice straw-derived biochars produced at different temperature (550, 650, 750 oC). The resulting biochars were subjected to liquidphase oxidation by different agents including KOH, HNO3, H2SO4, H2O2 and KMnO4 to obtain bio...
Autori: Sobhy M. Yakout
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26661

Abstract The degradation and adsorption behavior of dibutyl phthalate (DBP) in methanogenic phase refuse was investigated through laboratory microcosm experiments. The results showed that the half-life of DBP in the sterilized refuse was 5.9 times higher than in unsterilized samples, but that it decreased by 35.8% when dominant bacterial strains were added. Different concentrations of DBP did not have obvious effects on its degradation. The half-lives of DBP were decreased by 53.0%, 37.2% an...
Autori: Chengran Fang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26690

Abstract The Southeastern Black Sea coastal region in Turkey and Georgia is under threat of severe coastal erosion and shoreline recession. The main reason for this problem is the response of the coast to human activities. While water discharge rates were reduced by dams by approximately 7% only, about 98% of the suspended sediment is being captured by the dams, leading to reservoir siltation over time in the southern Black Sea Region Rivers in Turkey. About 83% of the total suspended sedime...
Autori: Mehmet Berkun
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26698

Abstract Individual exposure to particulate matter (PM) fractions is mainly determined by indoor source characteristics and personal activity patterns. This paper discusses experimental results obtained through the analysis of individual exposure of women to PM10 and PM2.5. To this purpose, 15 volunteers of different ages and lifestyles living/working in Ceccano (Italy) were selected and their exposures to PM10 and PM2.5 were measured through a handheld photometer. They also filled out a tim...
Autori: Giorgio Buonanno
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26703

Abstract One of the changes in marketing refers to the redirection of focus from profit to sustainable development. Sustainability marketing can influence sustainable development. The key contribution of the paper is the presentation of holistic approach to sustainable development and sustainability marketing through three dimensions: goals, actors and capital. Holistic management of sustainability marketing in the process of sustainable development is focused on economic, environmental and ...
Autori: Beba Rakic
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26711

Abstract Planktonic algal samples were collected from lakes with different salinity (Salt Lake Brăila, Amara Lake, Fundata Lake, Techirghiol Lake and Black Lake-Sovata), in which mud used in balneary therapy is formed. A total of 189 species were recorded: 35 Cyanobacteria, 10 Euglenophyceae, 96 Bacillariophyceae, 33 Chlorophyceae, 3 Chrysophyceae, 2 Cryptophyceae, 1 Xantophyceae and 9 Dinophyceae. The highest number of phytoplankton species was recorded in Techirghiol lake (127 species...
Autori: Liana Gheorghievici
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26719

Abstract Particle size distribution is one of the most influential factors of most soil physical and even some soil chemical characteristics. As modern measurement techniques are being introduced, the need for comparing new methods with older methodologies arises because comparability means data continuity. Here, three institutes conducted a comparison of particle size measurement among the laser, areometer and pipette techniques. The purpose of the comparison was to a) discover any differen...
Autori: Csaba Centeri
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26733

Abstract Wind erosion, which strongly affects both plant and soil development in arid environments, is dependent on soil properties, wind characteristics and plant cover. In a semiarid zone in SE Spain, a new technique consisting of dusting plants with a forced wind stream reduces tillage and significantly increases productivity. By using a blower once a year, dust is raised and partly retained by plants, and eventually ends up in the understory. To assess the influence of this technique on ...
Autori: Carlos Asensio
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26735

Abstract In order to remove various radionuclides (Tl+, Sr2+and La3+) from wastewaters we used three solid supports of (styrenedivinylbenzene) grafted with different pendant groups (1-triphenylphosphonium; 2-izo-propylphosphonate; 3- aminoethylaminomethyl). The solid supports with different pendant groups were impregnated with ionic liquid (Cyphos IL-101- trihexyltetradecylphosphonium chloride). IR-spectra, EDX-ray and SEM image were used to characterize the adsorbent obtained after the imp...
Autori: Mihaela Ciopec
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26749

Abstract Extensive use of plastics leads to the increase of non biodegradable wastes that have to be recycled due to both dramatically decrease of natural resources to producing them and to their increasing need as well as due to environmental issues. Most of goods made by materials based on wastes have to be commonly used by people. Antibacterial character of those is necessary to avoid epidemics. This paper deals with determination of antimicrobial character of materials based on polymeric...
Autori: Florica Silvia Cristina Patachia
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26751

Abstract Every day, millions of people are exposed to noise at work and to all the associated risks. It is a clear fact that the noise is an important problem in the industrial areas and moreover it becomes a significant issue in a wide range of other non-industrial environments as well. The current trend in the construction of gearboxes, regarding the speed increasing, favors the increase of the dynamic loads, which are accompanying the operation of equipments. The dynamic contact phenomen...
Autori: Zoltan Iosif Korka
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26765

Abstract Issues concerning the treatment and the recovery/disposal of sludge derived from the municipal WWTPs (Wastewater Treatment Plants) are gaining importance both in Italy and abroad. In Lombardy Region this aspect is particularly relevant due to both the amount of sludge produced and its remarkable reuse in agricultural soils. This paper discusses different strategies for land application of sludge in order to provide technical and regulatory guidance at regional level. The work is bas...
Autori: Maria Cristina Collivignarelli
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26769

Abstract Thermophilic anaerobic digestion is a suitable technology to treat agricultural waste because of its higher biogas production, hygienisation effect and solids removal efficiency. Although these benefits, poor effluent quality and instability are encountered in some cases. The anaerobic co-digestion of winery waste and waste activated sludge at 55°C, operating at 23 days HRT and with an organic loading rate of 3.2 kg COD/m3d, was characterized by accumulation of volatile fatty ac...
Autori: Cinzia Da Ros
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26775

Abstract The recent awareness about recycling also involves the resources used in civil engineering. The use of Recycled Aggregate Concrete (RAC) has several advantages in terms of conservation of natural resources and of reduction of pollution. Although the interest on the use of structural concrete with recycled aggregates is increasing, extensive studies on the mechanical behaviour of such materials that can allow their use in alternative to standard concrete are still lacking. As a conse...
Autori: Marco Breccolotti
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26776

Abstract A VOC monitoring was carried out inside and outside a multi-storey car park in order to characterize the emission profile of vehicular traffic source in an indoor environment. BTEX, and in particular toluene, were the most abundant compounds in all monitored sites, with different compositions between indoor parking areas and outdoor sites. The motor vehicle exhaust and gasoline vapor emission in these enclosed parking garages were characterized by diffusion or degradation phenomena ...
Autori: Gianluigi de Gennaro
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26778

Abstract The European Commission has introduced a whole range of policies and initiatives to promote the product eco-innovation and the environmental impacts reductions. One of the key topic for the reduction of the environmental impacts is the waste recycling and reuse (turning waste into useful resources). A teamwork of Politecnico di Milano has developed a research work, still ongoing and continuously updated, called “The usefulness of the useless. Cross-sectorial evaluation of wast...
Autori: Marco Migliore
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26788

Abstract This paper aims at analyzing the drinking water issue in the Mediterranean region, highlighting the principal problems and the appropriate technologies applicable in the different countries. The countries of this area are characterized by a huge variety from social, cultural, economic and environmental point of view. In particular, water distribution is inhomogeneous between the North, East, and South; even the type of water sources and the related quantity and quality problems diff...
Autori: Sabrina Sorlini
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26793

Abstract The feasibility of humidification-dehumidification utilizing waste heat from exhaust gas was investigated. The exhaust gas below 100°C was used as the heat resource and to evaporate the salt water. The effect of operation conditions on the fresh water productivity and thermal efficiency was studied, including the salt water flow rate, exhaust gas flow rate and temperature. The performance of this process was discussed from the view of temperature field, and the temperature field...
Autori: Huaigang Cheng
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26812

Abstract The objective of this paper is to propose an optimal path for a circular economy strategy of Aluminum Corporation of China (CHINALCO) by constructing a circular economy evaluation model. Based on CHINALCO’s resource circulation and the regularity of material balance, and by depicting the value information in the process of resource input, consumption, output and waste, we build a comprehensive evaluation model for the enterprise circular economy - a resource value flow equatio...
Autori: Fei Xiong
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26815

Abstract Energy costs not included in consumer utility invoices include human health problems triggered by air pollution from burning fossil fuels, and environmental degradation caused by global warming, acid rain, and water pollution. Such costs, peripheral to energy pricing, are called externalities because electricity producers and users do not pay for them directly. Society as a whole must pay. This pricing system masks the true costs of fossil-based electricity generation plants, result...
Autori: Hasan Karimzadegan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26862

Abstract In the present study, several selected formulations based on recycled (rPP) or virgin polyolefins (vPP) and lignocelluloses were prepared and subjected to microorganism attack. Biodegradation tests were performed with microbial strains belonging to fungal genera, like Aspergillus, Penicillium and Fusarium. The initiation of biodegradation was demonstrated by Scanning Electron Microscope (SEM) micrographs showing the colonization of surface samples by microbial strains. The crystalli...
Autori: Luiza Jecu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26879

Abstract The paper presents a study on the hazards associated with solid ammonium nitrate (AN) storage and handling, in particular the hazard of explosion. Due to its flammable and explosive characteristics, AN is largely used as an explosive material in the mining industry. Some specific problems encountered in the risk estimation are related to the determination of the explosive power of the AN, which depends on several characteristics. The simulation results of AN explosion using differen...
Autori: Zoltán Török
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26891

Abstract Romania has recorded a dramatic number of road traffic accidents in the last five years. The latest European documents and statistics indicate that the country has the highest number of traffic fatalities across the Member States of the European Union. The aim of the paper is twofold. First, the authors aim to analyze the spatial characteristics of traffic accidents for the period 2010-2014: spatial distribution of accidents at county level, number of vehicles involved, socio-spatia...
Autori: Silviu Marian Ciobanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26893

Abstract The current industrial trend is toward the development of sustainable technologies, and environmentally-friendly chemicals that might be used to enhance the drilling activities. This is due to the fact that petroleum industry is regarded as one of the hazardous and risky industries. Unfortunately, the majority of the toxic materials that are used in the formulation of drilling mud are employed to improve the quality and functions of drilling fluid. Oil based muds (OBMs) from hydroca...
Autori: M. Enamul Hossain
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26907

Abstract The distillery wastewaters lead to multiple environmental concerns due to release in large volume of pollutants in water-bodies. In the present study, microbes tolerant to 10-50%, v/v of distillery spent wash (DSW) and decolorization capacity were explored for decontamination. Total 32 microbes from various eco-habitats and depositary were examined to degrade DSW, initially at 10% and successively to 25 and 50%. Of these, 3 thermotolerant Pichia sp. viz. Y4, Y16 and D1C and an isola...
Autori: Bhagyashri Dandi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26911

Abstract The ethanol-gasoline blends have brought new challenges to the in-cylinder mixture air-fuel ratio control for the variable fuel characteristics especially in the traditional PFI (Port Fuel Injection) SI (Spark Ignition) engines. This paper studied all the dynamic links in the intake fuel transfer process from the fuel injectors to cylinders, including the wall-wetting effect and injector fuel flow characteristics. A wall-wetting fuel film evaporation model and an injector fuel flow ...
Autori: Dongwei Yao
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26918

This paper presents municipal solid waste (MSW) responsibility and management structure in Sinop, Turkey together with the current situation of collection, recycling, transport and disposal of MSW. In order to examine the MSW management, a longterm study was conducted between 1994 and 2010. In this study, physical composition of MSW was determined. Proximate analysis (moisture content, density and calorific value) and ultimate analysis (carbon, hydrogen, oxygen, nitrogen, sulfur and ash) of ...
Autori: Nurdan Gamze Turan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26925

In this work, coagulation features and characteristics of dissolved organic matter (DOM) in combined sewer overflow (CSO) wastewater were investigated. Ferric chloride (FeCl3) and polyaluminum chloride (PAC) were employed in the coagulation process. Results showed that both FeCl3 and PAC are effective in removing turbidity and total phosphorus (TP). Removal efficiencies were all above 90% when dosages were reasonable. Chemical oxygen demand (COD) removal efficiency was between 60% and 70%. T...
Autori: Wei-gang Wang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26931

This study investigates the effects of earthworms and a variety of substrates on photosynthetic characteristics and rate of uptake of nitrogen (N) and phosphorus (P) by Iris pseudacorus L. (Iridaceae) in a constructed wetland system under greenhouse conditions. The study seeks to identify those factors that maximize the efficient removal of N and P. Four substrates were tested: pure sand, sand and soil, sand and organic matter, and a mixture of sand, soil and organic matter. The photosyntheti...
Autori: Defu Xu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26936

This paper highlights the benefits of using Geographical Information Systems (GIS) for a Sustainable Forest Management (SFM). A basic forest unit was studied for which a GIS project was performed. For this purpose cadastral base plans, scale 1:5,000 were scanned and vectorized and, in addition, 2704 locations were determined on the fields using the GPS equipment, to make sure that the areas of the compartments and subcompartments are correct. Dendrometric characteristics of the trees (i.e. d...
Autori: Cornel Cristian Tereşneu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26970

In the present study, the effects of two methods for thermal sanitization of soil, by oven and by autoclave, and two non-ionizing radiation sterilization methods, UVC and microwave on pH, conductivity, dry weight, total number of germs and respiration of samples from neutral commercial soil were evaluated, using international standard methods. Also, the infrared and UV-VIS spectroscopy were applied for the determination of chemical properties and structural characterization of humic acid and ...
Autori: Dumitra Raducanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26985

The adsorption characteristics of nitrate ions from aqueous solution using Lewatit FO 36 was investigated as a function of pH, biomass dosage and contact time. Results showed that optimum conditions were obtained at pH 8, adsorbent dosage of 160 mg/L and contact time of 60 min. At the optimized experimental parameters, the maximum nitrate adsorption capacity of Lewatit FO 36 was 200 mg/g and nitrate adsorption followed Freundlich model. Among seven kinetic models used in this study, the adso...
Autori: Mehdi Ahmadi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26996

A mine ventilation system provides a fresh air flow to the underground workings in a coal mine. Such sufficient air volume can dilute and remove noxious gases (typically NOx, SO2, CH4, CO2 and CO) and maintain a suitable working environment for coal miners. On the other hand, a poor ventilation system often leads to serious consequences such as mine gas explosions, production loss or higher operational costs. Hence, the functions of mine ventilation system are very important for an undergroun...
Autori: Jianwei Cheng
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27008

Knowledge of the basic levels of heavy metal concentrations in soil and their spatial disposition, on a certain area, is particularly important for economic activities, but especially for preventing and stopping pollution. The spatial distribution maps, obtained by measurements performed (of a certain density), cover the entire studied area and are very useful. According to the literature several methods are known for building such maps, most of them based on a simple mathematical interpolati...
Autori: George-Călin Rogozan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27031

The need of hydraulic structures for the improvement of the navigation conditions on the Danube, between Calarasi and Braila (km 375 and km 175), led to the development of studies regarding the environmental impact. The studies were made by correlating the dynamic implementation of hydraulic works with the results of the environmental monitoring, biotic and abiotic factors. The hydraulic works designed to be built-up on the Bala branch, raised issues regarding sturgeons’migration in thi...
Autori: Alina-Florina Nicolae
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27036

The hydrotechnical works (bottom sills, banks protections, and guiding wall) performed during 2011 -2017 period on the Danube river, between Calarasi and Braila (km 375-175), aimed to improve the fluvial navigation, and have imposed a continuous monitoring of biotic and abiotic environmental factors. The aim of these hydraulic works is to identify the possible negative effects which might appear and find the alternative solutions to eliminate the risks. The sturgeons, which are migratory spec...
Autori: Marius Constantin Raischi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27037

In the current context, when studies regarding the planet’s ability to sustain the human species consumption present more and more grim scenarios, it is required, more than ever, to consider sustainable development as a main priority for development strategies worldwide. In this sense, reducing the negative environmental impact of building materials and lowering energy consumption in buildings exploitation becomes the main axis for most of the new tendencies in architecture and civil e...
Autori: Marian Pruteanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27040

The main purpose of this research is to outline a profile of the environmentally friendly tourist in a Romanian mountain destination. Using quantitative research the paper investigates tourists’ environmental awareness, their eco-friendly intentions and their demographic and travel characteristics. The analysis is based on 331 observations collected in the most important Romanian mountain resort, namely Poiana Brasov. The research findings have allowed us to create a profile of the env...
Autori: Adina Nicoleta Candrea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27042

Renewable resources, biopolymers and bio-based materials are keywords of the sustainable development and environmental sustainability concepts. Biopolymers, the green alternatives to fossil fuel based polymers, have already found different feasible applications, from consumer goods to regenerative medicine. Keratin is the biopolymer contained in the skin derivatives and appendages and is one of the the proteins with the most sophisticated architecture nature could produce. It is found in huge...
Autori: Hossein Rajabinejad
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27043

This paper aims at identifying the specific and phytocenotic diversity, as well as assessing the conservation status of habitats across the Protected Natural Area Racâş-Hida - Site of Community Interest from Romania (ROSCI 209), located in the Sălaj County. The target is to identify taxa and types of natural habitat whose conservation requires them designation as special conservation areas, as well as to identify solution for the sustainable management of the range. As a resul...
Autori: Aurica Grec
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27067

Since the link between tourism and economic growth is not automatic, a country must meet certain characteristics in order for this link to occur and make it sustainable through time. Among these characteristics, environmental and sustainable policies, the existence of hard and soft infrastructure, a regulated labour market and economic and financial indicators play a key role. Therefore, Country Risk Score (CRS) can represent a good indicator of the sustainability of countries. Using Country ...
Autori: Roberto Cervelló-Royo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27074

We examined the effluent from a municipal (Nyíregyháza, Hungary) wastewater treatment plant (WWTP) on hydrophysicochemical properties and on diversity, community structure, and stability of fish assemblages at the recipient low flow channel system during a two-year period. The WWTP outflow increased significantly the nutrient concentrations (e.g. NO2 and NO3 concentrations increased to 4x and 8x respectively), and the regime (with the permanent ~0.23m3/s load) at the recipient c...
Autori: Péter Takács
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27082

Experimental research focus on the emission characteristics of a diesel engine employed a new combustion system-double swirl combustion system (DSCS) is carried out. The influence of spray angle on diesel emission characteristics with DSCS is analyzed by experimental and numerical method. Main emissions such as particulate matters (PM) and nitrogen oxidants (NOx) are measured in diesel engine with DSCS and the original engine. Also, fuel consumption, combustion pressure, heat release rate are...
Autori: Liwang Su
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27087

This paper reports the potential of rice husk waste biomass to remove copper (II) from simulated wastewater under different experimental conditions. For this, rice husk has been pre–treated by boiling, formaldehyde and concentrated sulphuric acid. Fourier Transform Infrared Spectroscopy, Scanning Electron Microscopy and Energy dispersive analysis X–ray analyses were performed before and after adsorption, to explore number and position of the functional groups available for copper ...
Autori: Manjeet Bansal
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27095

This research focuses an examination of municipal solid waste (MSW) generation and composition in Amasya, providing overview of the current state of MSW management, an analysis of existing problems in MSW collection, separation, recycling and disposal. Municipal solid waste comprises more than 95% of Amasya’s solid waste, while three other types of solid waste comprise less than 5% of it, namely industrial waste (3.5%), hospital waste (1.0%) and construction and demolition waste (0.5%)...
Autori: Semra Çoruh
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27099

Three different winter wheat production systems for three European countries (United Kingdom, France and Italy), all with different climatic conditions, soil management and input levels (e.g. tillage, fertilizers, herbicides and pesticides) were analysed from an environmental perspective. The intended applications were the analysis and comparison from a Life Cycle Assessment (LCA) perspective and the identification of the key parameters which have the greatest influence on final results. The ...
Autori: Daniele Cambria
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27102

The green products market is growing up fast, but there is still a strong need to provide clear and verified information about their environmental performances in order to create a real consuming preference. The main preliminary results of a market survey conducted in Romania in 2010-2013 within the LIFE+ project -Promoting green products, aimed at evaluating the availability of eco-labeled products and at promoting their use, are presented in this paper. A national Green Register of type I e...
Autori: Antonina Temea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27114

The goal of this paper is to determine the characteristics of a Stirling engine able to be used by a micro-solar power plant as energy conversion system. The purpose is to use solar energy as heat source and a Stirling engine because of its numerous advantages, as its high (theoretical) efficiency. This work was made in collaboration with several industrials involved in the project named MiCST, whom objective is to electrify remote villages in Africa. Results of a simple 0-D model built on M...
Autori: Nadia Martaj
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27116

The accumulated characteristics of typical veterinary antibiotics (tetracyclines, sulfonamides, quinolones and macrolides) and tetracycline resistance (tet) genes in the different wetland soils (Krasnozem and Chernozem), and the effects from Phragmites australis were evaluated in this study. Results indicated that the concentrations of targeted antibiotics and tet genes in soils with swine treatment would increase as time progressed. The tet genes and targeted antibiotics (except sulphonamide...
Autori: Lin Liu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27145

During the Twelfth Five-Year period (2011-2015), agricultural sources have been incorporated in the total emission reduction policy for the first time in China. The discharge from livestock and poultry industry has become a focus for increased research. Based on the present situation of total emission reduction from livestock and poultry industry, this paper analyzes the pollution reduction problems such as data, measures and regulations, and provides the suggestions such as “reliable d...
Autori: Yueying Wu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27148

The effectiveness of thermal insulation materials mostly depends on their thermal conductivity. The low thermal conductivity is predetermined by density, structure, moisture content and temperature of material and, considerably less, by other indices. Loosefill cellulose insulation is allocated to the group of materials, the density of which fluctuates within large limits. This property is related not only to application of cellulose wool in different constructions, but also to technological ...
Autori: Sigitas Vėjelis
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27165

The aim of this research is to investigate adsorption characteristics of Co(II), Ni(II), Cu(II), Zn(II), Cd(II) and Pb(II) complexes with MGDA (methylglycinediacetic acid) from aqueous solutions by using the multifunctional chelating ion exchanger Diphonix. MGDA, belonging to a group of new generation complexones which readily undergo biodegradation, is patented by BASF and marketed under the brand name Trilon M. Optimum adsorption conditions were determined as a function of phase contact time, ...
Autori: Justyna Jachuła
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27183

Rats (Rattus spp.) can cause substantial economic loss to oil palm (Elaeis quineensis Jacq.) plantations. Spatial occurrence of rat in oil palm plantation has not been adequately dealt. We evaluated the rat occurrence at an oil palm plantation in Sabah, Malaysia using habitat factors from GIS and GeoEye data. Among the regression models examined, binomial logistic regression model best predicted the rat occurrence. Overall accuracy of the occurrence prediction calculated from an independent data...
Autori: Mui-How Phua
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27189

In this work, the effect of cyclic anaerobic/aerobic conditions on the biodegradative capability of the mixed microbial culture for the azo dye Acid Red 18 was investigated in the sequencing batch reactors. For this purpose, five anaerobic/aerobic sequencing batch reactors were operated under the same operation conditions at different anaerobic/aerobic reaction times. The whole reaction time was 22-h with anaerobic/aerobic periods of 6/16, 10/12, 14/8, 18/4 and 22/0 (h/h) in An/ASBR1 to 5, respe...
Autori: Mohammad Hakimelahi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27191

Intensive cereal crops planted on soils from the Western part of Romania determine, annually, significant losses of essential microelements and macronutrients for plant development from the agricultural soil, which lead to the depletion of such lands. Fly ash (FA) resulted from coal combustion at the CET Timisoara power plant, can be used as supplement to an organic fertilizer, such as manure (M) to restore the balance of micro- and macronutrients, important to obtain healthy cereal crops and hi...
Autori: Smaranda Masu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27208

This paper examined some physical and mechanical properties of wood from thin trees of sessile oak collected from thinning operations, in order to recommend this secondary wood resource for potential superior applications (as solid wood panels and furniture components). Swelling, shrinkage, modulus of rupture (MOR) and modulus of elasticity (MOE) and compression strength parallel to the grain were examined and compared with data from literature reported for mature trees. The variation of the abo...
Autori: Alin M. Olărescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27210

In this study, Response Surface Methodology (RSM) was applied to investigate both the effects of biodiesel percentage in fuel mixture and engine operating parameters (engine load and engine speed) on emission characteristics (unburned hydrocarbons (HC), CO and NOx) of a diesel engine. The optimization of biodiesel percentage in fuel mixture and engine operating parameters also was performed using the desirability approach of the response surface methodology for lower emission characteristics. Th...
Autori: Alireza Shirneshan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27217

Developing countries have seriously low adoption rates of sustainable agricultural practices (SAPs) and there is a need to understand why. This paper reviews 31 past studies focusing on the factors influencing the adoption of SAPs. Using a vote count methodology, SAPs adoption is revealed as a complex set of behaviors which depend on a range of socio-economic, agro-ecological, institutional, informational, psychological factors and perceived attributes. Identified within these six dimensions, ma...
Autori: Yeong Sheng Tey
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27253

Reuse of grey water is an attractive option when available water supplies are limited, and can reduce demand on water supplies and provide additional water resource. This comparative research was conducted to assess the suitability and effects of reusing grey water, treated and untreated, as irrigation water for vegetables, compared with tap water. Tomato (Lycopersicon esculentum) and green bean (Phaseolus vulgaris) plants were selected as examples. The collected grey water samples were treated ...
Autori: Jehad Y. Al-Zou by
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27254

In this work, twenty different physical and chemical methods were used to study the effect of pretreatment on Cr(VI) and Cd(II) biosorption by an aquatic plant (Ceratophyllum demersum) biomass. The H3PO4 boiled biomass had the highest biosorption capacity (45 mg/g) for Cr(VI). The NaOH boiled biomass showed a higher biosorption capacity for Cd(II) (63 mg/g). Dunnett's test was carried out to compare the biosorption capacity of raw biomass with those pretreated by H3PO4 and NaOH, and the resu...
Autori: Pari Teymouri
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27265

The paper presents some aspects regarding the use of certain bark biomass as sustainable and renewable fuel. The main bark uses are listed exhaustively, emphasizing the fact that they are parts of the forestry biomass. The main problems arising from the ecological burning of bark are highlighted, namely the amount of ash and the resulting gases, especially carbon dioxide, but the emphasis is placed on the amount of heat and ash that bark produces during combustion. Accordingly, the high and low ...
Autori: Aurel Lunguleasa
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27288

Paintings signed by Nicolae Grigorescu and Stefan Luchian, exponents of Romanian Modern Art were selected for a technical study on easel painting canvases. Both the physical integrity and the appearance of the artefacts derive mainly from the strength of the canvas and the physical and chemical characteristics of the fibres imparting their response to deterioration. In order to determine a deterioration pattern for canvases subjected to environmental stress, a simulation on flax fibres samples w...
Autori: Maria Geba
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27292

The level of dissolved oxygen (DO) in the water downstream hydro power plants is an essential parameter which allows preservation and development of the aquatic habitat. The objective of this paper is to identify a new technical solution that contributes to the increase of DO level in the water passing through the turbine. The current technical solutions improve the DO level but affect the hydraulic efficiency of the turbine. There is no general technical solution for aeration of water used by h...
Autori: Florentina Bunea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27296

The experimental results of studies on cement concrete with fly ash and metallic fibers are presented and are compared with a control mix. In the tested mixes five dosages of cement replacement with fly ash and two dosages of metallic fibers were considered. Mechanical characteristics such as compressive, flexural and split tensile strengths were experimentally determined. Tests results had shown that fly ash as replacement of cement generally reduced the mechanical strengths of concrete. In the...
Autori: Adrian Alexandru Șerbănoiu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27307

Climate and environmental conditions primarily affect the yield and quality of agricultural products. Turkey’s environment shows different characteristics between regions because of the position of the Turkey in the World. In the agricultural product industry, different techniques are used to measure the physical properties (diameter) of the agricultural products to determine the effect of the climatic difference between regions on the quality of goods. Many factors affect the classificati...
Autori: Metin Dağtekin
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27308

A possible prediction methodology for the concentration of pollutants wave in aquatic environment using Rough Set Theory is presented. The issue is of increasingly importance especially for early pollution risk warning. The hydro-morphologic complex characteristics of surface water bodies should be taken into account when pollution dispersion models are designed. However, when more characteristics/multi-criteria are taken into account, including pollutants physical-chemical ones and their enviro...
Autori: Georgeta Mădălina Aramă
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27319

Pharmaceuticals contaminants in waters exhibit a significant threat on the human health and the ecosystem quality. This research demonstrates the utility of a silver-doped zeolite-modified carbon nanofiber-epoxy (AgZ-CNF) prepared by two-roll mill method in development of the fast methodology for the detection of fluoxetine (FXT) in the aqueous solution. The results showed the role of zeolite that improved the sensitivity and the limit of detection of FXT resulted to the possibility to propose a...
Autori: Magdalena Ardelean
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27328

The composition and the structure of the soil matrix have an important role in determining the water and the air regime into the soil. In the soil pore the area occupied by water and air, capillary and adsorption phenomena occur, together defining the suction of the matrix. The suction-humidity relationship varies from one soil to another, but also to the same soil in time. This paper sets out the results of investigations aimed at highlighting the influence of the composition and structure of...
Autori: Florian Stătescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27332

The objective of this study was to develop a naturally dyeing process of 70% wool /30% Angora mohair blended yarns by using bio-mordants as an environmentally friendly alternative for the conventional metallic salts. Bio-mordanting operation was achieved by using of condensed tannin extract from quebracho bark trees. Conventional mordanting has been performed using the conventional mordants like copper sulphate and tin chloride. Another specific objective of this study was to investigate the pos...
Autori: Ioana Stanculescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27337

The paper presents a study concerning the influence of the hydraulic and hydrological connectivity among the oxbow lakes and the restoration of riparian-zones have on aging. Interconnectivity oxbow lakes emerge after complex regulating works for the protection of the shores and bottom of the lakes. Research has analyzed the influence of the hydraulic connectivity of three lakes located in northern Poland on the structure of associated bottom invertebrates – elements that monitor the cond...
Autori: Anca Balan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27342

In quarries, hard rock blasting is done effectively using explosives for civil use. Perhaps, the most used technical solution for decreasing the seismic effects due to blasting is sequential blasting in front of the quarry. This technical solution involves the use of proper means of initiating explosives, which have to meet certain characteristics able of leading to the achievement of the intended purpose. This paper describes one of the methods of verification and the testing results for non-el...
Autori: Edward Gheorghiosu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27354

Explosion-proof equipment must be designed so that the ignition of the surrounding explosive atmosphere to be avoided. This is very important because an explosion can have particular implications over goods, life and not least over the environment. One of the ignition sources of an explosive atmosphere is represented by hot surfaces. Each equipment designed to operate in explosive atmospheres develops a maximum surface temperature. The specific standards used to assess explosion protection chara...
Autori: Lucian Moldovan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27358

This study models the potential effect of various fuel treatments on crown fire behavior by using two crown fire simulation models in Aleppo pine (Pinus halepensis Mill.) stands. Fuel complex characteristics that influence fire behavior were measured in a representative Aleppo pine stand in northern Greece, using standard surface and canopy fuel inventory methods. Nine different fuel treatments (control, prescribed burning, controlled grazing, thinning without slash removal, thinning with slash...
Autori: Ioannis D. Mitsopoulos
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27382

Construction industries generate a large amount of concrete wash water every day, and it causes soil, surface water and ground water pollution. Therefore, re-using concrete wash water to produce fresh concrete is one of the solutions to prevent environmental pollution and to sustain water use. In this study, we tested setting time of cement, slump, compressive and tensile strength of 24 triplicate cubic samples of concrete with and without micro silica plus additive admixture using concrete wash...
Autori: Gholamreza Asadollahfardi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27389

• EXPERIMENTAL INVESTIGATION OF TEMPERATURE EFFECTS ON THE PARAMETERS OF PHOTOVOLTAIC PANELS    • CONCENTRATIONS OF CHROMIUM, CADMIUM AND NICKEL IN TWO CONSUMED FISH SPECIES OF PERSIAN GULF, IRAN    • IMPROVING THE ENERGY EFFICIENCY OF RESIDENTIAL BUILDINGS BY USING A DRAIN WATER HEAT RECOVERY SYSTEM    • ASSESSMENT OF METAL CONTAMINATION AND ECOLOGICAL RISK IN URBAN SOILS SITUATED NEAR A METALLURGICAL COMPLEX    • FINANCIAL DE...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27398

EXPERIMENTAL INVESTIGATION OF TEMPERATURE EFFECTS ON THE PARAMETERS OF PHOTOVOLTAIC PANELS    • CONCENTRATIONS OF CHROMIUM, CADMIUM AND NICKEL IN TWO CONSUMED FISH SPECIES OF PERSIAN GULF, IRAN    • IMPROVING THE ENERGY EFFICIENCY OF RESIDENTIAL BUILDINGS BY USING A DRAIN WATER HEAT RECOVERY SYSTEM    • ASSESSMENT OF METAL CONTAMINATION AND ECOLOGICAL RISK IN URBAN SOILS SITUATED NEAR A METALLURGICAL COMPLEX    • FINANCIAL DEVELOPME...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27399

The research work aimed at analysing the drinking water quality in Vilanculos (Mozambique) and at investigating the influence of poor sanitation management on drinking water quality. The purpose was to understand the reasons of water source contamination and re-contamination in the water supply chain, in order to define strategies to control source contamination and to suggest practical ways for reducing the risk of recontamination. A first phase of microbiological drinking water quality monito...
Autori: Silvia Gibellini
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27406

Organic solid waste and the current lack of sound treatment for its valorisation are of high priority for decision makers in developing countries. Despite the remarkable use of composting processes in those areas, an appropriate scientific literature as well as databases are still lacking, hampering the sustainable implementation of composting process. This paper contributes to cover this gap, presenting a full-scale case study in Maxixe, Mozambique. Technical characteristics and detailed ope...
Autori: Andrea Perteghella
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27419

In this work, magnetic alginate was synthesized by encapsulating of Nickel Zinc Ferrite nanoparticle within Ca-alginate. The synthesized magnetic alginate was modified by ethylenediamine using microwave radiation to remove anionic dye from wastewater. The characteristics of magnetic nanoparticle, magnetic alginate and magnetic alginate amide (MAA) were studied using Fourier transform infrared (FTIR) and Scanning electron microscope (SEM). FTIR analysis confirmed the amidation of alginate. Di...
Autori: Niyaz Mohammad Mahmoodi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27424

Three different synthetic textile dyeing wastewaters were treated by a chemical coagulation/flocculation process, using ferric sulphate as coagulant. Polyacrylamide (Magnafloc 155) and polyamine (Superfloc C-573) based flocculants were applied. The influence of pH (between 3.5 and 10.4) and Fe3+ concentration (from 15 to 4000 mg/L) in both color and dissolved organic carbon (DOC) removal of polyester, cotton and acrylic dyeing wastewaters was assessed in the coagulation stage. As far as floc...
Autori: Carmen S.D. Rodrigues
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27427

The efficient use of fresh water sources and proper modeling of the water quality can only be possible when flows in the dam reservoir are well defined. Therefore, in this study, a hydrodynamics model of an actual dam reservoir in three dimensions for simulating a real dam reservoir flows for summer season is created. The model is developed using nonlinear and unsteady continuity, momentum, energy and k-ε turbulence model equations. In order to include the Coriolis force effect on the...
Autori: Fatih Üneş
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27430

Removal of the heavy metal ions from water disposals remains a widespread problem due to their adverse influence on public health. The most harmful materials are the products of nuclear fission called radioisotopes such as cerium ions. Cerium barely interacts with adsorbent materials, therefore the new substances capable to bind cerium are of great interest. Ca and Na alginate samples were incubated in Ce3+ solutions; adsorption capacity was measured and the results were evaluated using Langm...
Autori: Maxim Khotimchenko
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27435

The negative effects of acid mine drainage (AMD) on the natural and human environments are well understood in South Africa, yet a robust and economic AMD treatment technology has not been developed. The current study aimed at exploring the performance of synthetic zeolite F9 in AMD treatment with specific focus on iron and manganese removal. For this, batch adsorption mode was adopted for which the effects of adsorbent dosage, initial pH and temperature were investigated. As a result, it was fou...
Autori: Mike Masukume
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27454

In Romania many rivers have been canalized by non-submersible damming, flow diversions and channeling towards new routes, transversal arrangements, etc. The modifications of natural flow regimes brought severe impacts on all ecological functions of wetlands and on the natural functioning of river-floodplain systems. Due to damming only few of the floodplains function nowadays in a natural manner. Rivers and wetlands rehabilitations are bringing the well-known environment benefits, reason for wh...
Autori: Lăcrămioara Vlad
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27462

An experimental study of the wires-two plates is presented in this paper. The principal running of these types of electrostatic precipitators is based on the corona discharge on which depend their performances. The factors affecting corona formation on wire - to- plate gaps are investigated experimentally. There are many factors affecting such corona formation. The investigated factors were the interspace between the two wires, gap length between the wire and the plate, ambient temperature, r...
Autori: Nouri Hamou
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27485

This study investigates the dynamic relationship between economic growth, energy consumption, financial development, and CO2 emissions at macro level in the case of 49 countries from Europe and Central Asia over a two-year period. The research focuses exclusively on country-level characteristics and uses a heteroscedasticity-consistent standard error estimator (HC3) to analyze the aforementioned relationship. The proposed econometric models test whether: i) the level of development of financial ...
Autori: Marilena Mironiuc
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27494

This study aims to obtain high performance cement under friendly environmental conditions, through the optimization of clinkerization process. The influence exerted by mineralizers i.e. fluoride (NaF, KF) or oxide (CuO, TiO2) on the Portland clinker characteristics and derived cement properties is presented in this experimental study. The presence of these additions in low concentration (i.e. 0.5-0.8 wt. %) permits the reduction of the burning temperature (with 20oC up to 70oC) of raw mix and mo...
Autori: Jenica Paceagiu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27500

Sustainable Integrated Watershed Management (SIWM) paradigm is becoming more important in terms of managing and protecting natural resources in many countries. Turkey’s biggest problem is that the state organization and structure of the legislation are not appropriate for SIWM paradigm. Between government institutions as synchronous and concentric work has not yet developed. On the other hand, there are incompatibilities in the shareholders’ expectations and requests that makes devel...
Autori: Ceyhun Göl
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27501

This paper highlights the utility of rice husk ash for the adsorption of Cr(VI) ions from aqueous solutions. Rice husk ash (RHA) is produced when rice husk is burnt for various purposes. Application of Treated Rice Husk Ash (TRHA) as an adsorbent for the removal of Cr(VI) from aqueous solutions has been investigated. For this purpose, RHA was thermally treated. RHA and treated RHA (TRHA) were characterized by XRD, SEM and FTIR to investigate the effect of treatment on the nature and surface char...
Autori: Varsha Srivastava
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27504

Pot experiments were performed with a barren soil amended with fly ash stabilized municipal sewage sludge to cultivate Brassica chinensis. Accumulation and transformation of heavy metals in the tested soil-plant system were investigated. The results showed that appropriate application of fly ash-sludge mixture could improve the growth of Brassica chinensis. The plants cultivated in F30 treatment, which contained 14% (volumetric) sludge and 6% (volumetric) fly ash, presented the highest yield and...
Autori: Ruilian Yu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27511

Average emission factors of air toxic compounds, emitted from motorcycles in Bangkok, Thailand were analyzed using the IVE (International Vehicle Emission) model. The model was utilized taking into account the actual fleet and characteristics of motorcycles of the study area. Four air toxic compounds (namely benzene, 1,3 butadiene, acetaldehyde and formaldehyde) and their emission rates were calculated under two main pollution abatement scenarios (the improvement of fuel quality and switching of...
Autori: Pantitcha Outapa
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27513

Renewable energy investments may be threatened by uncertainty regarding current support regulations. Incentives for investments would need to integrate more aspects regarding the companies that enter the renewable energy market. The current paper explores the triggering events for corporate entrepreneurship that lead to investments in the renewable energy field. It presents an empirical analysis based on a qualitative approach, aiming at identifying which types of triggering events influence ...
Autori: Adrian Dumitru Tanţău
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27517

Due to its traditions and landscape characteristics, Romania has unique ecological advantages (e.g. diverse bioregions, unique habitats, flora and fauna diversity, large areas and functional land-use of semi-natural habitats) that need to be considered in nature conservation. Much of the biodiversity-rich habitats are in cultural landscapes, as well. This paper providing a review of how conservation policy evolved in Romania and how Romania managed to integrate components such as biodiversity co...
Autori: Klára Benedek
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27533

The potential use of a novel low-cost adsorbent, Eupatorium adenophorum Spreng, as a solution to remove Cr(VI) ions from aqueous was reported. Effects of various regulating parameters, such as pH value of reaction, adsorbent dosage and temperature, were investigated. To fit the adsorption equilibrium data, Langmuir isotherm and Freundlich isotherm were invoked. Additionally, thermodynamic parameters of the adsorption process, such as ΔG, ΔS and ΔH, were also calculated. The res...
Autori: Chen Jin-fa
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27535

Two multiple linear regression (MLR) models were developed with the aim to estimate the decomposition temperature of a series of polyimides. Two parameters, Tni and Tai, corresponding to the temperature of 10 % weight loss of the sample, determined by dynamic thermogravimetric analysis under conditions of N2 inert atmosphere and air, respectively, were used as a criterion for thermal stability. The obtained MLR models correlate thermostability with a series of characteristics of the studied poly...
Autori: Catalin Lisa
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27556

Livestock grazing may have a great effect on both standing vegetation and soil seed bank. The present study investigated the characteristics of the soil seed bank and determined its relationship to the above-ground vegetation in grazed and ungrazed sites in the Hei-wa-wu oxbow wetland of the Yangtze River, China. A total of 3700 seedlings across 59 species germinated from the soil seed bank. Annuals and terrestrial species dominated the soil seed banks of both grazed and ungrazed sites. Grazing ...
Autori: Dong Yang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27569

This work focuses on the analysis of material composition of mixed municipal solid waste (MSW) in the city of Košice, the second largest city in Slovakia, and in the village of Poproč, which is representative of the region. The paper describes the characteristics of the monitored localities, the methodology and the original evaluation procedure. The analysis of the mixed MSW composition in Poproč was performed in 2009-2010, and in Košice in 2011. In both cases, the analys...
Autori: Takáčová Zita
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27570

A new low-cost activated carbon was developed from kiwi peel for removing Pb(II) from aqueous solution. The adsorbent characteristics were determined by different analyses such as BET, FTIR and SEM. The adsorbent demonstrated remarkable characteristics such as high surface area (306.18 m2.g-1) and large total pore volume (0.4810 cm3.g-1). The effect of pH, contact time, initial concentration, shaking rate and adsorbent dosage on the Pb removal efficiency was investigated. It was found that the o...
Autori: Mostafa Rahimnejad
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27605

In the context of globalization, the economic environment started to be more dynamic, complex and uncertain. As a result, some managers focused on developing sustainable organizations while others became preoccupied with creating knowledge based firms. But sustainability and knowledge aren’t as different as it seem; knowledge is a resource and sustainability concentrates on the rational use of resources. As a consequence, this article aims to highlight what a sustainable knowledge based...
Autori: Ramona - Diana Leon
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27618

FLUCTUATION OF RIVER NETWORK WATER ENVIRONMENTAL CARRYING CAPACITY IN A COMPLICATED RIVER-LAKE SYSTEM    • MINERALOGY AND GEOCHEMICAL DISTRIBUTION OF HEAVY METALS FOR THE FAGUL CETĂȚII TAILINGS, ROMANIA    • ACCUMULATION AND AVAILABILITY OF TRACE ELEMENTS FROM SOIL INTO ORIENTAL TOBACCO GROWN IN MACEDONIA    • OLFACTORY EFFECT ON LANDSCAPE PREFERENCE    • EFFECT OF MOLASSES ADDITION AS BIODEGRADABLE MATERIAL ON PHENOL REMO...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27628

Thin-film transistor liquid-crystal display (TFT-LCD) waste glass can be used as a raw material for producing geopolymers, because it contains large amounts of silicon and aluminum in its amorphous structure. The setting time and compressive strength were evaluated to determine the quality of the geopolymer product with various amounts of nano-SiO2 (0%–3%) and TFT-LCD waste glass replacement (0% - 40%). The microstructures of the samples were characterized using mercury intrusion porosimet...
Autori: Kang Gao
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27634

A new methodology is presented for relating the generation and/or the consumption of heat and electrical energy to the rate of CO2, NO2, and SO2 emissions to the environment. Two indices are provided for the precise determination of emissions of these gases to the atmosphere and are of help in the analysis and comparison of the quality and efficiency of energy options. The indices have no linear dependency on energy consumptions (unlike EIA and EPA methodologies) and can be applied to any indust...
Autori: Mohammad Hossein Ordouei
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27640

An attempt has been made in the present study to investigate the wastewater characteristics from six different rural human settlements in the state of Punjab, India. The six selected rural catchments are located on a radius of about 5-50 kilometers from Phagwara town, Kapurthala district. The study area comprises the villages of the districts of Jalandhar, Kapurthala and Shaheed Bhagat Singh Nagar in Central Punjab. The wastewater samples were collected between January, 2012 and July, 2012 and a...
Autori: Puneet Pal S. Cheema
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27641

Bacillus thuringiensis (Bt) is a spore-forming bacterium which produces insecticidal crystal protein in the sporulation phase. Polymerase chain reaction (PCR)-based identification of Bacillus thuringiensis toxin genes has become a routine step in most B. thuringiensis isolation and characterization initiatives. In the present study, eighteen native Bt isolates from diverse habitats of North India were taken for the presence of cry1 type genes. The distribution of cry1 gene families in native ...
Autori: Shiv Shankar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27666

This paper proposes a study on the estimation of daily solar irradiation (global and diffuse irradiation) under real-sky conditions and the validation of proposed estimation models by analyzing the most important statistical indicators. Two types of regressions are proposed for the estimation of solar daily global irradiation; the first type is based on the second order degree Ångström-Prescott correlations; the second type uses the second order Ångström-Prescott correla...
Autori: Elena Eftimie
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27670

The objectives of this study were to investigate: a) whether the duration of organic farming influences the dimension, shape and geometry (fractal dimension) of soil micropores (<50μm) and b) for relationships of morphometric traits with certain chemical and biochemical soil variables (microbial biomass, N- and C-mineralization rates, NH4+, NO3-, organic C and N, extractable P, Mg+2, K+, Ca+2). We compared soil micromorphometric traits (area, perimeter, compactness, solidity, eccentricity)...
Autori: Nikolaos Monokrousos
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27682

The changing characteristics of vegetation carbon patterns in the karst region of northwest Guangxi, China and their impact factors were analyzed on the basis of vegetation inventory data from 2005 to 2010. A radial basis function network model (RBFN) was constructed using data from 1377 samples and 13 environmental factors. The results for the 5-year study period were as follows: (1) The total carbon storage of vegetation had increased with an annual growth rate of 1.84% and the carbon density ...
Autori: Mingyang Zhang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27692

Industrial wastewater is of particular importance. In most wastewater treatments, physicochemical parameters are used to determine the performances which are costly while protozoa can be used as less expensive biological indicators to determine the efficiency of the treatment plant. The purpose of this study was to investigate the relationship between protozoa and physic-chemical characteristics of the Abadan wastewater treatment industry. Samples were collected from wastewater stabilization po...
Autori: Abotaleb Bay
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27694

Influence of soil pH on the mechanical characteristics of glass reinforced plastic (GRP) pipes type was often investigated in different situations encountered in the field. GRP degradation is directly proportional to the exposure to soil with non-neutral reaction. The theoretical and experimental results lead during time to design standards, which allow the application of GRP pipes in water and soil, so as minimum interferences with the materials used in the manufacture of pipes would appear. Sa...
Autori: Ana Diana Ancas
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27768

6In this paper, an application artificial neural network (ANN) and adaptive neuro-fuzzy inference system (ANFIS) are presented to predict the heat transfer rate and effectiveness in the corrugated plate heat exchangers. First, the thermal performances of the corrugated plate heat exchangers were evaluated experimentally. Experimental data were used for training and testing network. The results of the ANN are compared with the ANFIS in which the same data sets are used. The ANN model is slight...
Autori: Bayram Kılıç
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27763

The construction of rural tourism actor-network is an innovative transformation process, which integrates natural, economic, social and cultural focal actors of multi-functional agriculture in a rural area. The transformation process is a translation of these actors incorporated into a spatial distribution of landscape, which accelerates rural tourism through innovative integration. This study provides a method to measure and analyze the characteristics of focal actors in the translation process...
Autori: Liaoji Zheng
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27761

The aim of this study is to identify the influential factors which affect the planning and construction process in coastal ecological engineering. Through the application of AHP to analyze weight, it applies the data obtained from descriptive statistics as a reference in decision-making. Research methods are by means of expert questionnaire. To understand the same and different points of views from the experts and scholars, then according to different purposes it uses the results of this study i...
Autori: Chi-Shun Hsu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27732

Evaluation of spatial/ temporal water quality data at reservoirs has shown differences after the dam construction as well as long-term changes of water chemistry. One of the most recent reservoirs created in Europe is Ilarion Reservoir in Western Macedonia – Greece (2012). In this work, the water physicochemical characteristics of this young reservoir and the spatiotemporal water quality variation of the feeding river and its main tributaries have been studied, and statistically interprete...
Autori: Elisavet Amanatidou
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27737

In this study, the development of a suitable methodology for establishing and monitoring indicators of Ecosystem Health (EH) and its responses to wildfire using Earth Observation (EO) data synergistically with Geographical Information Systems (GIS) is investigated. The proposed methodology combined GIS and Landsat Thematic Mapper (TM) and Enhanced Thematic Mapper Plus (ETM+) data to assess ecosystem characteristics, including its vigor, organization and resilience, for a case study in Central Gr...
Autori: Aaron Evans
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27745

In this paper, the typical measurement techniques and production procedures defined in the UNI-EN guidelines for ceramic manufacture are taken into consideration to evaluate the properties and the characteristics of the bricks produced by using a mixture containing cubilot slag. The results of the experimental tests demonstrate that these measurement techniques are not enough to define the safety of the waste bricks. Up to now, UNI-EN guidelines for ceramics do not define crystallinity measureme...
Autori: Domenico Luca Carni
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27787

The Water Safety Plan (WSP) model provides a completely new, cross-cutting and multidisciplinary approach for the risk assessment of drinking water pollution. The concept of “control” of the drinking water supply system (DWSS) is replaced by the concept of “under control”, in order to protect human health. The key factor of the WSP approach is the identification and mitigation or, if possible, the elimination of all factors that may cause a chemical, physical, microbial a...
Autori: Maria Cristina Collivignarelli
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27790

The analysis by numerical simulations can be applied to building materials subjected to different climatic conditions to envisage the influence of environmental factors in terms of drying time, water absorption and thermal performance of materials. Currently there is a wide variety of new building materials used for insulation, waterproofing and rehabilitation, each contributing in a specific way to constructions improvement during their service life. In time, every building is subjected to degr...
Autori: Alexandra Alisa Găină
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27863

Environmental pollution has become a major global problem. However, despite increased environmental investment, studies have not clarified whether environmental pollution has been effectively controlled. On the basis of 1998-2014 panel data on three types of industrial waste from 31 mainland China provinces, a stochastic frontier analysis (SFA) model was used to estimate the input efficiency of environmental governance in China, explore the overall characteristics of input efficiency, and explor...
Autori: Ye Zheng
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27862

The study performs an approach to the "environment - life quality - biotechnological molecular gastronomy" direction, an axis with consistent theoretic and practical potential in offering attractive and pleasant culinary products for the consumers, with the same effect on health as supplementary under pharmaceutics format. The paper proposes a change of paradigm, in order to develop certain excellence gastronomic preparations, based on incorporating functional and/or nutraceutic foo...
Autori: Romulus Gruia
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27855

In this study, nine microbial strains with oil-degrading function were isolated from oil-contaminated soil near four oil wells in the 0.6 km2 area of the Jinnan Oil Field, Huaian, Jiangsu, China (32°57′ N, 119°02′ E). Based on morphological observations, physiological and biochemical responses, and molecular identification, we confirmed that the nine strains belong to five genera: Pseudomonas, Raoultella, Lysinibacillus, Escherichia, and Klebsiella. The degradation capacity o...
Autori: Yujia Liu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27848

The main topic of this study is the photo-optical and electrochemical behavior of a series of fluorinated copolyimides containing both oxadiazole and perylene moieties in the main chain. The polymers prove a strong photo-optical stability on a large temperature domain and display different types of photoluminescent behavior in solution and in solid state, with emission maxima in the bluish and green–yellow domains. Cyclic voltammetry investigations suggest that the polymers can be easil...
Autori: Radu-Dan Rusu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27883

In this study, the flocculating properties of different cactus juice preparations were assessed using synthetic and real industrial and leachate wastewaters. It was found that the crude CJ had a flocculating activity (FA) of 89 ± 2.2% which is significantly higher than that of a powdery sample derived from a 60°C oven-dried CJ sample and which was about 37.8 ± 2.5%. Interestingly, both crude and dried samples showed the ability to flocculate kaolin suspensions within a wide ...
Autori: Moncef Khadhraoui
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27887

In order to reduce Cr(VI) and Cr(III) simultaneously, a double microbial fuel cell (MFC) system was employed to treat Crcontaining wastewater. Cr(VI)-MFC used Cr(VI) as a catholyte to supply the generated power to Cr(III)-MFC, while the latter MFC functioned as an external load resistor of the former one. Buffer characteristics of the catholyte greatly affected the reduction of chromium ions. At an initial pH of 2.0, Cr(VI) removal increased from 49.9% to 99.9% when KH2PO4 was added. Keeping ...
Autori: Fang Li
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27896

In this research, a support vector regression and Monte Carlo simulation-based interval two-stage programming (SVRMC-ITSP) method was developed through integrating support vector regression (SVR) and Monte Carlo simulation into a two-stage intervalstochastic programming (TISP) framework. The developed SVRMC-ITSP method can effectively tackle dynamic, interactive and uncertain characteristics of municipal solid waste (MSW) management systems. It can also be used to simulate waste generation r...
Autori: Chao Dai
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27905

Considering world energy demand and its security, much attention has been focused on identifying promising lignocellulosic substrates to generate a variety of downstream fuels and chemicals. In response, a recent key research area has centered on hydrolysis of cell wall polysaccharides by various physical, chemical and biological means. Due to their complex chemical and molecular structure, there is a substantial knowledge gap in understanding of biomass recalcitrance and its relationship wit...
Autori: Nadeem Akhtar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27908

Biosorption of copper(II) by lyophilized and thermally treated bacterial biomass of Pseudomonas aeruginosa PAO1 and Pseudomonas fluorescens BME in aqueous suspension was studied. The cell surface properties were characterized and the experimental conditions, e.g., pH, adsorption time, and initial metal concentration were optimized for efficient biosorption. The surface charge was negative at pH above 2.5 for P. aeruginosa, and above pH 4 for P. fluorescens. The highest copper(II) uptake was ...
Autori: Anikó Kőnig-Péter
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27917

In this study we investigated the possibilities of using recyclable fine and coarse grain waste obtained by grinding Polyethylene Terephthalate (PET) containers, as light filling materials for different applications (clay dams, highway embankments, and backfills behind retaining structures. Various geotechnical tests were performed on clayey soil and soil-PET mixtures using recycled fine and coarse granules of Polyethylene Terephthalate bottles. The results indicated that the use of the recyc...
Autori: Osman Gunaydin
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27920

The objective of this work was to evaluate the effects of six lactic acid bacterial strains originated from different natural habitats of fermented food and feedstuff on pasture grass and alfalfa laboratory scale silages. The prepared mini silos were inoculated with the following bacterial strains alone or in combination: Lactobacillus brevis LbB (2x107 cfu/mL), Enterococcus faecalis EF (3.6x108 cfu/mL), Lactobacillus plantarum subsp. plantarum LbP (2.8x108 cfu/mL), Weissella paramesenteroide...
Autori: Éva Laslo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27933

Yizhang, located in south of Hunan province of China is rich in geothermal resources. This paper aimed to study the concentrations of cations, e.g., K+, Ca2+, Na+, Mg2+ and conducted the analysis of the environmental isotope characteristics of δD, δ18O and 13C. Further there are explained the rules of the generation and evolution of geothermal groundwater in Yizhang. The temperature of geothermal groundwater in Yizhang was between 34.2 and 45.4 °C, with a neutral pH and a high...
Autori: Junjie Ba
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27944

• ENVIRONMENTAL CHANGES IN NORTH-EASTERN ROMANIA – A TRIGGER FACTOR FOR LYME DISEASE    • HYDROGEOCHEMISTRY AND ENVIRONMENTAL ISOTOPE COMPOSITIONS AND THEIR EVOLUTION IN GEOTHERMAL GROUNDWATER IN YIZHANG, HUNAN PROVINCE, CHINA    • CONSTRUCTION OF A BIOGAS HEAT STORAGE GREENHOUSE ECOSYSTEM UNDER THE CONTEXT OF WATER POLLUTION RESULTING FROM LIVESTOCK BREEDING    • ENVIRONMENTAL NOISE: HEALTH AND POLICY - AN UP TO DATE MINIREVIEW  &nb...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27946

• ENVIRONMENTAL CHANGES IN NORTH-EASTERN ROMANIA – A TRIGGER FACTOR FOR LYME DISEASE    • HYDROGEOCHEMISTRY AND ENVIRONMENTAL ISOTOPE COMPOSITIONS AND THEIR EVOLUTION IN GEOTHERMAL GROUNDWATER IN YIZHANG, HUNAN PROVINCE, CHINA    • CONSTRUCTION OF A BIOGAS HEAT STORAGE GREENHOUSE ECOSYSTEM UNDER THE CONTEXT OF WATER POLLUTION RESULTING FROM LIVESTOCK BREEDING    • ENVIRONMENTAL NOISE: HEALTH AND POLICY - AN UP TO DATE MINIREVIEW  &nb...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27947

In order to have a proper image of the seismic effect generated by blasting works performed in quarries, the assessment methods applied before starting the blasting activity using explosives for civil use have to take into account as many information as possible with regard to blasting conditions, type of explosive, blasting technique, characteristics of the environment in which the explosive is detonated and in which the seismic waves are generated. Given the complex mode of propagation of s...
Autori: Edward Gheorghiosu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27953

The manner in which individuals deal with stressful situations depends on several variables. Personality characteristics, event circumstances, preparedness of individual, personal appraisal of events, pre-existing organizational and personal stressors are all key factors. Psychological resistance to stress can be the result of spontaneous evolution, or can be developed through special training, through programs that increase the threshold beyond which functional alterations may occur, resulti...
Autori: Izabella Kovacs
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27958

The influence of the piston effect in subway tunnels depends on a train speed, the geometry of a tunnel and a train, the types of air flow caused by mechanical ventilation and other variable characteristics. Tables and graphs of changes in air flows generated by the effect of the piston are presented depending on the speed of a train and the degree of fill rate of a tunnel. It is noted that the piston effect is characterized by two phases. At the first stage, the piston effect and the process...
Autori: Omar Lanchava
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27959

• ENVIRONMENTAL CHANGES IN NORTH-EASTERN ROMANIA – A TRIGGER FACTOR FOR LYME DISEASE    • HYDROGEOCHEMISTRY AND ENVIRONMENTAL ISOTOPE COMPOSITIONS AND THEIR EVOLUTION IN GEOTHERMAL GROUNDWATER IN YIZHANG, HUNAN PROVINCE, CHINA    • CONSTRUCTION OF A BIOGAS HEAT STORAGE GREENHOUSE ECOSYSTEM UNDER THE CONTEXT OF WATER POLLUTION RESULTING FROM LIVESTOCK BREEDING    • ENVIRONMENTAL NOISE: HEALTH AND POLICY - AN UP TO DATE MINIREVIEW  &nb...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27968

In the present work, acid treated natural oil palm trunk powder (OPTP) has been utilized as novel adsorbents for the removal of methyl orange (MO) from aqueous solution. The batch method was employed to study the adsorption behavior of MO which was subsequently determined by UV/Visible spectrophotometer. The adsorption characteristics and operational parameters were determined by monitoring different parameters such as pH, contact time, dye concentration and temperature. The acid treated OPTP an...
Autori: Akil Ahmad
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27975

The paper presents the development of a Flood Index (FI) based on the flood hydrograph characteristics, namely flood magnitude ratio, rising curve gradient and time to peak. These characteristic values are normalized to their respective values corresponding to a 100-year flood. The methodology developed to compute FI is applied to three case studies; Kentucky in USA, Oc-gok in the Republic of Korea and Haor in Bangladesh. The obtained results show advantages of the presented methodology over ...
Autori: Biswa Bhattacharya
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27992

Water retention capacity and hydraulic conductivity are major soil hydraulic properties that influence soil quality and the environment. The objective of this work was to assess major soil hydraulic characteristics in response to the effect of soil management and tillage practices. Eight soil treatments were considered: conventional tillage, reduced tillage, no-tillage, fallow notillage, abandoned soil, compacted soil, plough on compacted soil, and application of super absorbent polymers. The...
Autori: Fereshte Haghighi Fashi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27996

This study aims to define a municipal Solid Waste Management (SWM) strategy using Multi-objective Optimization Problem (MOP) and ELECTRE method. Four waste treatment technologies were considered: recycling, composting, incineration and landfilling. Firstly, a Multi-objective Linear Programing (MOLP) model was developed. The solutions obtained from this model were ranked using the ELECTRE method. It was considered as case study a hypothetical city of 1,000,000 of inhabitants, presenting the a...
Autori: Rafaella de Souza Henriques
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27998

With the rapid development of electric vehicles (EV), more and more EV batteries will intensively face the retirement. If they are treated improperly, EV batteries might pose a serious threat to human health and environment. Therefore, recycling spent EV battery is full of significance. However, the recycling system and specific policies have not be well established in China. This paper aims to evaluate several recycling subsidy policies being considered and tested in China for their influenc...
Autori: Xin Li
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28002

Our research aims to establish the influence of Osmocote®Pro fertilizer on ornamental characteristics, photosynthetic pigments content, superoxide dismutase and peroxidase activities for Lillium regale species. The tests were organized in four variants, each with three replicates, each replicate consisting of 10 bulbs. The growth of plants in the four experimental variants was achieved without fertilization in case of the control variant (M) and under fertilization conditions with Osmocot...
Autori: Maria Brînză
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28005

In order to select a better plant to extract cadmium in heavy metal contaminated soil, a hydroponic germination experiment was designed to evaluate the effects of cadmium on seed germination characteristics of Grain amaranth (Amaranthus hypochondriacus L.), Indian mustard (Brassica juncea) and Ryegrass (Lolium perenne L.). The results showed that fresh weight, dry weight and germination index of Ryegrass were promoted at the low cadmium concentrations (≤ 25 mg/L), while that of 3 plants was i...
Autori: Zhang Jun
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28051

A simultaneous hierarchical classification of groundwater in the Banat Plain-southwestern Romania and associated characteristics such as As(III), As(V), total As, trace metals (Al, Cd, Cr, Cu, Fe, Mn, Ni, Pb, Zn), pH and redox potential using Fuzzy Hierarchical Cross Clustering Algorithm was carried out. In samples containing more than 10 μg/Ltotal As (13.9 – 77.3 μg/L), the As(V) species represented 57±20% and 73±18% in the others. Arsenic speciation pattern was in agr...
Autori: Marin Senila
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28059

Human activities have intensively relied on and utilized riparian areas that have led to their substantial degradation. This is the reason why easy-to-use, reliable, inexpensive monitoring tools that describe the ecosystem integrity of riparian areas need to be developed. Bio-indicators are such tools, with many recommending the use of ground-dwelling insects. This study evaluates the use of diversity indices on ground-dwelling insects for three representative riparian habitat types of Greece. T...
Autori: George Nick Zaimes
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28060

Dust explosions are one of the main causes of mining disasters. To avoid them, it is important to understand how they are propagated. In the study reported here, computational fluid dynamics software was used to model a 3D diagonal pipe network then simulated a dust explosion at its inlet to examine its propagation characteristics. The initial conditions, boundary conditions and parameter settings were detailed description in the simulation to analyze possible propagation characteristics, assess...
Autori: Baichao Song
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28067

Fluidization characteristics and separation properties of fluidized beds with different bed structures were studied. The stability of fluidized beds with different structures decreases with the increase of bed height. The uniformity and stability of density of rectangular fluidized bed is better than that of square and circular fluidized bed at the same bed height. The influence of fine coal content on the density distribution of fluidized bed has little relation with the bed structure. Separati...
Autori: Shulei Song
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28094

Leather processing is one of the highly polluting industries, due to generation of significant quantities of tanned and untanned wastes. Untanned wastes are less contaminated with chemicals and a better source of high value products such as collagen rather than tanned or finished leather wastes. In the present study, collagen dissolution substances (CDS) were prepared from bovine limed split wastes as value added products, by treating leather wastes with sodium hydroxide and fermented dairy b...
Autori: Gökhan Zengin
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28095

Based on the interpretation of LUCC data, through the correction of basic equivalent value and value equivalent coefficient, this study sets up the evaluation system based on value transfer method, and realizes the dynamic evaluation of wetland ecosystem nservices value in Jiangbei New Area, i.e., the value of wetland ecosystem services in Jiangbei New Area was RMB 6,060.77 million, RMB 9,244.62 million and RMB 7709.68 million respectively in 2002, 2009 and 2017, which show obvious fluctuation ...
Autori: Shu Tang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28109

This study is an attempt to monitor the indoor microclimate and the microbiological contamination of some indoor objects inside a wooden Orthodox church. Standard microbiological techniques were used for the isolation and identification of the fungi present in the dust of the superficial surface of the paintings chosen to be investigated for biodeterioration. Samples were taken from approximately 1 cm2 of the surface of the analysed paintings (cotton canvas, wood, on primer) using the cotton swa...
Autori: Dorina Camelia Ilieș
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28114

China’s tremendous economic developments are achieved at the expense of environmental deterioration. In recent years, PM2.5 pollution has become increasingly serious in China, attracting widespread attention from the citizens and the government. This study aims to investigate the temporal–spatial characteristics of PM2.5 in China in 1998–2012, fully considering the potential influencing factors of PM2.5. The satellite remote sensing data compensate for the deficiency of surface...
Autori: Wenyang Huang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28115

In this study we present time-related 3D ERI models for a site that was contaminated using waste automobile engine oil. The pristine geo-electrical characteristics of the site were recorded before the contamination was carried out. The purpose of the study was to progressively monitor the geo-electrical responses of the site for possible natural bio-transformations on the waste oil. Data were acquired once every two weeks for a period of three months using eight parallel 2D resistivity profiles....
Autori: Bokani Nthaba
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28118

Soils are influenced by stand composition and hydrological regime as well as by stress abiotic factors, including forest fires. As such, this study analyzed three stands affected by fires of different severities. Soil samples were gathered during the spring of 2017 from three sample areas in Vrancea County, eastern part of Romania. For each area studied, soil profiles were studied in 3 areas affected by fires and in control areas located close to each other. The soil respiration was determined b...
Autori: Aurelia Oneț
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28120

The 2030 Agenda for Sustainable Development adopted in 2015 attracted wide international attention. China’s State Council issued the Development Plan for China’s Innovation Demonstration Zone for Implementation of the 2030 Agenda for Sustainable Development in 2016, which offered a Chinese prescription for global sustainable development. Implementation of the Plan is based on National Sustainable Development Pilot Zones (NSDPZs). This gives rise to the question of what adjustments a...
Autori: Junli Li
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28142

There are considerable environmental and health and safety concerns regarding liquid crystal display (LCD) waste glass because of the waste electrical and electronic equipment (e-waste) that is deposited in landfills. In current study, the effect of variation in LCD waste glass on the deconvoluted fractions of silicon centers of metakaolin geopolymers has been comprehensively investigated to discover the underlying mechanisms governing the performance. Solid/liquid ratio affects the kinetics of ...
Autori: Kang-Wei Lo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28146

In last years, a significant decline in soil quality has occurred due to contamination caused by anthropic activities. These lead to adverse changes in soil physical, chemical and biological attributes and drastically reduce soil fertility. There currently are no generally accepted criteria to evaluate changes in soil quality. This lack impedes the design and evaluation of meaningful soil management programs. This paper examines the principal physical, chemical and biological characteristics th...
Autori: Teodora Alexandra Zotica
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28150

Molybdate anions are used in a lot of fields and represent an essential trace element for plant and animal life; however, excessive amounts can cause adverse effect on various organism and environment. Therefore, in the present paper the adsorption performance of MgnFe- layered double hydroxides in the removal process of molybdate from aqueous solutions was studied. The layered double hydroxide (LDH) was synthesized by co-precipitation at low oversaturation method. Different ratio between Mg and...
Autori: Alin Golban
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28152

The industrial water quality of a thermal power plant is of high importance, and a process water treatment station being always required. Whatever the adopted treatment system is, it is accompanied by the production of different amounts of sediment and sludge, which must be disposed and valorized. This paper presents in detail, the physical-chemical treatment system applied for the industrial water production in a Romanian thermal power plant (Veolia Energy Iasi Co.), referring to its installati...
Autori: Dorina Stănciulescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28154

The bio-inspired algorithms are versatile approaches that can be applied to a variety of problems. However, their efficiency is influenced by a multitude of characteristics such as quality of final solution, consumed computational resources, diversity management, convergence, complexity of the problem being solved. Consequently, the issue of choosing the best approach for a particular problem is a difficult task. In this work, the performance of two bio-inspired algorithms, Differential Evolutio...
Autori: Elena Niculina Dragoi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28159

The paper covers the results of a study, carried out during 2005 and 2018, regarding the impact of sludge dump of a wastewater treatment plant from Iasi city, Romania, on the soil characteristics. Experimental research was conducted to highlight the evolution of the heavy metal content of both the material in the storage site and the soil in its proximity. The following heavy metal concentrations were analyzed with atomic adsorption spectrometry method: Zn, Ni, Cr, Pb, Co, Cu and Cd. Research ha...
Autori: Georgiana Cezarina Bartic Lazăr
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28164

The study attempted to identify the best suited models to determine the kinetics of chlorine decay and trihalomethanes (THMs) formation in drinking water supplies. Batch experiments were conducted on synthetic water samples to simulate the characteristics of raw water collected from Maithon water treatment plant (MWTP), Dhanbad, Jharkhand, India. Influence of various parameters like total organic carbon (TOC), reaction time, pH and chlorine dose on the rate of THMs formation were analysed. The s...
Autori: Minashree Kumari
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28171

NaA zeolite was successfully synthesised from fly ash through hydrothermal process. The synthesised NaA zeolite was modified with Li+, Ca2+ and Mg2+ through ion exchange at a temperature of 60 °C and contact times of 1 h and 4 h. In this study the crystallinity of the synthesised NaA as well as its modified (LiA, CaA and MgA) was evaluated towards CO2 adsorption capacity using temperature programmed desorption (TPD) process at low temperature (40-150°C) and high temperature (150-700°...
Autori: Muvumbu Jean-Luc Mukaba
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28175

In cold, high-latitude regions, snow evaporation can significantly influence the snow water equivalent and thus change the regional water balance in early spring. In order to explore how the snowfall event and environmental factors affected the snow evaporation rate in the northern Daxing'an Mountains in China. From the snow melting period of March 2016 to April 2018, the eddy covariance method was used to explore the relationship between environmental factors and snow evaporation. The resul...
Autori: Youwei Lin
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28181

The western forests and rangelands of Iran in Zagros Mountain are valuable ecosystems for protecting the water and soil resources and providing the habitat for endemic fauna and flora. These ecosystems have widely destroyed by human interferences in the recent years. The land cover mapping using an accurate method is the first step to prevent the further destruction of these ecosystems. The aim of this study was to generate a land cover map of Ilam (Western Iran) using Sentinel-2A data at 10 m s...
Autori: Saeedeh Eskandari
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28192

Inorganic ceramic materials is receiving more attention in recent times due to their unique characteristics which include different pore structures, hydrophilic surfaces, high chemical, thermal and mechanical stabilities that offer avenues for application in water treatment. In the present work, cost-effective clay ceramic water filters of different designs were developed from clay (50, 60, and 70) %, sawdust (15, 20, 25, and 35) %, grog (5, 10 and 15)% ratios plus 5% bone char by volume and ...
Autori: Enyew Amare Zereffa
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28196

This study is a physical characterization of household waste in the town of Annaba (Algeria North East). Based on an adequate sampling protocol that takes into account the constraints of Algerian cities; Annaba city was taken as a case study for the rapprochement of the situation in Algeria. A quantity of 90 to 120 kg was sorted for each type of habitat in the city during four seasons of the year 2010 to 2011 according to 11 components of household wastes. Variations in the percentages of som...
Autori: Hamza Cheniti
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28197

A numerical simulation was conducted to investigate the combustion characteristics and effects of Hydrogen-Hydrogen Oxygen (HHO) addition on performance and NOx emission of a spark ignition (SI) biogas engine. At a given operating condition, indicative work cycle Wi increases with increase of HHO, CH4 concentrations and load rate; but it decreases with engine speed increase and reaches peak value as variation of equivalence ratio and advanced ignition timing. Combustion temperature T and NOx con...
Autori: Bui Van Ga
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28204

LED waste quartz sand (LEDWS), which is a prominent by product of the LED manufacturing process, may contaminate the environment because it comprises specific heavy metals (e.g., As and Cu), which are hazardous ingredients to the environment when disposed of improperly. Therefore, this study investigated the use of light-emitting diode (LED) waste quartz sand to partially replace Portland Type I cement (OPC) to evaluate the feasibility of reusing it as a pozzolanic material. The SiO2, Na2O, and ...
Autori: Kae-Long Lin
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28207

Architects and engineers play an important role in the choice of innovative and environmentally sustainable materials and techniques. To define these materials and techniques, they mobilize competencies acquired throughout their lives. To learn the profile of the environmentally innovative architect and engineer in Brazil, we created a self-assessment instrument that allows us to identify essential characteristics in practice, namely, which competencies are mobilized when they choose an environ...
Autori: Elaine Resende
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28223

Diesel oil (DO) as a mixture of alkanes and aromatic compounds causes damage to the ecosystem in terrestrial and aquatic habitats. One of the best methods of treating contaminated areas is to use microorganisms in a bioremediation method that can degrade pollutants. The aim of this study was to isolate indigenous bacteria with high biodegradation potential of DO from oil-contaminated wastewater. Bacterial isolation was performed using a mineral medium containing contain 1% DO as the sole source ...
Autori: Sharareh Dashteepour
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28224

The migration of methanogen in coal seams have great significance to study the improvement of coal bed gas (CBM) production by injecting microorganisms.This study aims to identify the migration characteristics of methanogens in different rank coals. Methanobacteria migration test was carried out by using coal samples of different particle sizes in the different rank coals. The results show that the maximum relative bacterial absorbance of a Qianqiu mine 18-35 mesh sample was 0.68, higher than th...
Autori: Hao Chen
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28236

An experimental inquest was performed to quantify the turbulent flow characteristics near the eroded region of an artificial sidewall bank at three different flow depths, and a comparison study is made between before and after erosion for two Reynolds numbers. Instantaneous flow velocities were taken with an acoustic Doppler velocimeter (ADV) at near bank of the vertical side wall. The mean flows and other turbulence quantities such as Reynolds shear stress, turbulent intensities, and turbulent ...
Autori: Krishnendu Barman
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28264

Space exploration requires reliable, rapid, significant and safe methods for preventing, monitoring and controlling biocontamination risk in water loops and humid areas in manned Space habitats. Water is one of the most important resources of our everyday life. Its microbiological control in houses, public water dispensers and special conditions (e.g.: epidemics, catastrophes, isolation) is crucial. The presented solution is automated, compact and portable, and above all “integrated&rdquo...
Autori: Vincenzo Guarnieri
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28298

Citrus is one of the most important fruit tree crops worldwide, with respect to both total production and economic value. About 80% of the world production is destined to the fresh market, the remaining is processed to obtain various products (juices, jams, etc.). Citrus processing residues account for about 50-60% of processed fruits; their huge amounts and peculiar characteristics need a correct management that imply cost for producers and processors. If not well managed, they can represent an...
Autori: Paola Sangiorgio
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28309

The work is devoted to the search and investigation of the properties of the effective environmentally friendly phytoremediation activators. An integrated approach was used to evaluate the effect of the compositions of thiosulfonates with rhamnolipid biosurfactant on remediation plants. The biochemical and biophysical analysis of the rapeseed and ryegrass plants grown in the oil polluted soil - photosynthetic pigments, indicators of oxidative reactions and electrical impedance characteristics we...
Autori: Olena Yaremkevych
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28319

This paper aims to investigate the root characteristics of three woody species (Pinus brutia, Quercus coccifera and Spartium junceum) planted on steep soil-denuded slopes, surfaced after ring-road excavation. The planted slopes were almost vertical, south faced and adding no soil. Fifteen plants per species were manually extracted for root system analysis and testing. The findings showed that the survivorship was different among the investigated species with S. junceum plants to survive better. ...
Autori: Petros Ganatsas
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28329

Transport networks, including highways, have many negative ecological impacts, such as habitat loss and landscape fragmentation. One of the most consicuous negative effects is wildlife vehicle collision (WVC). The basic aims of this study, conducted on the KÄąrÄąkkale-ÇankÄąrÄą Highway, Turkey, are the following: i) identifying locations of WVC events, ii) modeling the effects of landscape pattern and traffic characteristics on WVC and iii) proposing a solution to mitigate WVC. In the st...
Autori: Ali Uğur Özcan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28337

The application of Species Distribution Models (SDM) in the management of species habitat and environmental impact changes has been widely used by scientists and ecologists globally, however this study proposes a novel analytical technique involving the combination of a statistical ranking algorithm and Remote sensing GIS data (habitat and threat) to analyze the suitability hierarchy of the habitat of a signature water-bird (Larus relictus). The results indicate that about 47.63% of the study re...
Autori: Harrison Odion Ikhumhen
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28339