The use of gasoline oxygenated with MTBE (methyl tert-butyl ether) reduced significantly air pollution (16 - 23% lower emissions of CO and 18% lower emissions of unburned hydrocarbons) but increased water pollution. There is no European or national regulations for MTBE in drinking water except for Denmark, which has set a limit value of 30 Âľg/ L for MTBE. USEPA proposed a maximum concentration of 20- 40 Âľg/L. This paper is a review with 70 references on the MTBE production, use, properties and...
Autori: Camelia Beţianu, Florina Ungureanu, Loredana Branza, Lucian Vasile Pavel, Maria Gavrilescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25122

Iinclude urmatoarele articole:� Process water of papermaking: model building and characterization� Landfill inventory in the Republic of Moldova: problems and solutions� Floodplain revegetation and river basin restoration� Environmental problems of copper complex in Bor area� Researches on air micro flora determination from public indoor spaces and hospital wards in an urban area� Current practice of solid waste management in Malaysia and its disposal� An assessment of potential he...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25199

AbstractSafe water is fundamental for positive health and well-being. Much of the ill-health in society, especially in the developing countries, can be attributed to lack of harmless water. Each country elaborates its own drinking water standards based on healthbased targets.To ensure reliable consistent water-treatment and supply, drinking water standards have been prescribed both for drinking water supply and packaged/bottled water. Different countries prescribe standards that vary significant...
Autori: B. S. Nanda Kumar, D. Venkatakrishnappa, Monto Mani, Santosh M. Avvannavar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25141

The article presents the principles on which the upgrading of the ground and surface water treatment plants, respectively the implementation of new technologies are based. The outcome obtained in Timisoara consequently to applying the aforesaid principles and the strategies for the improvement in drinking water quality are also provided....
Autori: Ilie Vlaicu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25151

Experiments in a Pilot Plant (PP) are extremely important and relevant for the substantiation of research. This is the way to set up the most suitable coagulation-flocculation reagents, optimum operating conditions (injection point, reaction times, etc.),compatibility with the processes at the actual Water Works and real possibilities for further improvement.The present work aimed at verifying the previously obtained results in laboratory under PP working conditions for optimizing the coagulatio...
Autori: Adina Pacala, Alina Anghelina, Dalila Marşavina, Ilie Vlaicu, Katalin Bodor, Mihaela Anghel
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25156

Include urmatoarele articole:� Keynote Lectures Energy from municipal solid waste: large-scale incineration or small-scale pyrolysis?� Electrical properties of SnO2-Pt/Al2O3 in reduction atmosphere� Corporate management tools to address sustainability Challenges. A reflection on the progress and difficulties experienced during the last decade� Emerging academic responsibilities and opportunities for promoting regional sustainability� Challenges for integrated water resources management...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25200

AbstractAluminum and ferric salts are widely used as coagulants in water and wastewater treatment. They are effective in removing a broad range of impurities from water, including colloidal particles and dissolved organic substances. As well as traditional additives, such as aluminum sulphate ("alum") and ferric chloride, other products containing prehydrolized metal ions such as polyaluminum chlorides are now commonly used. The aim of this study was to develop a model for coagulation/flocculati...
Autori: Avid Banihashemi, Manouchehr Nikazar, , Reza Maknoon
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25230

AbstractThe disinfection of water containing microorganisms by exposure to pulsed-discharge plasma using a low-temperature gas-liquid hybrid discharge (HD) reactor was studied.The HD reactor consists of a plexiglas cylinder containing the liquid of high voltage electrode above liquid' s surface and grounded electrode submerged in the liquid. The HD could produce both arc discharges in gas and liquid phases. The high-energy plasma arc produces a pressure shock wave, which kills the targeted micro...
Autori: Gamal M. El-Aragi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25242

? Denitrifying activity of activated sludge in suspension and in biofilm? Denitrifying potential of an activated sludge derived consortium? Biosorption of hexavalent chromium based on modified Y zeolites obtained by alkali-treatment? Identifying anaerobic digestion models using simultaneous batch experiments? Olive mill wastewater as a renewable resource? Influence of innoculum acclimation in the biodegradation rate and estimated biodegradbility of cow manure, food waste and oil? Studies on the ...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25378

AbstractAt global level, the microbiological quality of water is a matter of concern, since diarrhoea represents the second cause of mortality. In addition, nitrates represent a significant problem and their high concentration - above the accepted limits - in drinking water is frequently encountered in Romania. Water samples have been analyzed in accordance with the methodology recommended by The Public Health Institute Bucharest. 78.15% of the water samples evaluated during the interval 2004-20...
Autori: Claudia Sarmasan, Lucia Daina, Sonia Draghici
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25325

AbstractDrinking water treatment plays an important role in maintaining public health. Chlorine is the most often disinfectant used for microbiological protection of water. Required residual chlorine concentration must be in treated water when it leaves treatment plant, to comply with the regulations. The chlorine residual must be 0.5 mg/L at the entrance into the distribution system and 0.25 mg/l at consumers, according to the law. Any less and there is no guarantee that the water has adequate ...
Autori: Dan Robescu, Diana Robescu, Nicolae Jivan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25328

AbstractGroundwater is an important source of drinking water, especially for rural population. In the last years, bacteria, nitrate, organic chemicals and other pollutants existing in groundwater have increased public concern about the quality of groundwater. Groundwater provides about 22% of all freshwater withdrawals; 37% of agricultural use (mostly for irrigation); 37% of the public water supply withdrawals; 51% of all drinking water for the total population and 99% of drinking water for the ...
Autori: Ancuţa Rotaru, Paulica Raileanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25329

AbstractIn this paper the results of surface water treatment process for drinking purpose are presented, using the microfiltrationultrafiltration process. The experimental studies were carried out using a microfiltration-ultrafiltration pilot plant and raw water from Bega River, Timisoara as feed. To assess process performance, the water quality, e.g., turbidity, total coliforms and hardness parameters were determined for two different operating regimes subjected to filtration time. A good effic...
Autori: Camelia Podaru, Cristian Danielescu, Florica Manea, Georgeta Burtica, Ilie Vlaicu, Viorel Patroescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25332

AbstractImproving access to safe drinking water can result in multi-dimensional impacts on people’s livelihood. This has been aptly reflected in the Millennium Development Goals (MDG) as one of the major objectives. Despite the availability of diverse and complex set of technologies for water purification, pragmatic and cost-effective use of the same is impeding the use of available sources of water. Hence, in country like India simple low-energy technologies such as solar still are likely to ...
Autori: , Nanda Kumar, Santosh M. Avvannavar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25337

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

â€? Bioremediation of contaminated air using a bioscrubberâ€? Quality risk evaluation of the groundwater resources on the moldavian areaâ€? Electrochemical characterization of some dental materials in accelerated environmental testingâ€? Preliminary study of simple and Fenton oxidation with hydrogen peroxide applied on final effluents from a zootechnical farmâ€? The environmental impact assessment caused by the dykes failureâ€? Revaluation of beer industry byproducts – medical implicationsâ€? ...
Autori: http://www.ecozone.ro/reviste.php?RID=25372

Abstract Pollution with toxic metals is a serious concern, because once these elements enter in the soil they can be present for a long time, with the potential contamination of drinking water sources. Certain metals in soil may be taken up by plants which are subsequently harvest for human consumption. Our objective was to study the presence of heavy metals in soils, groundwater sources, some medicinal plants from areas of the water sources and in its watery extracts. All of the samples, af...
Autori: Diana Diaconu, Victor Nastase, Mara Mihaela Nanau, Ovidiu Nechifor, Elena Nechifor
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25411

Abstract Arsenic (As)-contaminated drinking water is a major problem around the world. The removal efficiency depends strongly on the size of Fe3O4 sorbents.Fe3O4 prepared in laboratory is more efficient in the removal of As and is also more easily recovered from column of magnetic separator than the commercial materials. This would be beneficial in a water treatment system because the As-contaminated Fe3O4 could be flushed from the column permitting reuse of the separator system. The dispers...
Autori: Ionel Balcu, Adina Segneanu, Marius Mirica, Mirela Iorga, Catalin Badea, Iuliana Firuta Fitigau
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25456

Abstract Application of ozone is known to yield favorable results in purification of phosphate plant water from elemental phosphorus, in treatment of water of alkali aluminate solutions of aluminum plants, in decontamination of cyanide-containing waste water of enrichment plants, and so on. It has been proved that halogen-containing compounds, most of which have mutagenic properties, and some of which are carcinogenic to humans, are formed when water is treated with chlorine. Conclusions made...
Autori: Irina Dumitriu, ,
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25483

Abstract Romania’s drinking water and wastewater sector is currently going through a process of regionalization. This process involves a replacement of a local-focused governance structure by a regional-focused governance structure. The objective of this paper is to explore and explain this regionalization from a governance perspective. In two case studies, the situation before and after the regionalization are investigated. Analyses of the case studies show that the local-focused governanc...
Autori: Joanne Vinke-de Kruijf, Valentina Dinica, Denie C.M. Augustijn
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25536

Abstract A prehydrolyzed aluminium chloride (PAC), commercial product selected from a previously studied series, and the electrochemically obtained PAC (E-PAC) were tested as coagulants, comparatively with the classical aluminium sulfate (alum). A new method for producing E-PAC has been applied. The level of turbidity, the amount of total organic carbon, the UV-254 absorbance and the residual aluminium were evaluated, for determining the efficiency of the coagulation process in all situations...
Autori: Adina Pacala, Ilie Vlaicu, Ciprian Radovan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25569

Abstract The former Arad Chemical Fertilizer Plant had an important polluting effect on environment and, although it was shut down in 1990, its environmental heritage still exists. The paper contains a short description of the former plant and its impact on the environment, mainly on the quality of water and soil and emphasizes the effects of polluting heritage that still exists. Today, one of the major problems on the platform of the former Fertilizer Plant is the existence of all concrete b...
Autori: Aurica Grec, Florin Dumescu, Ladislau Klein
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25599

Abstract The chlorine is the reagent of the widest application in disinfection processes of drinking water but it shows the short coming of reacting with the organic substances therein giving trihalomethanes with possible cancerous action. For this reason the tendency is noticed of replacing chlorine by reagents with higher disinfecting properties and lack of final toxic products. The chlorine dioxide could be used to this purpose. A comparative study on the effects obtained by treating the P...
Autori: Corneliu Oniscu, Dan George Popovici
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25620

Abstract The Jajrood River watershed is one of the main drinking water resources of Tehran, the capital city of Iran. In addition it provides many recreational usages. However, a variety of microbial pollutions is commonly perceived in the Jajrood River, among them a high concentration of coliform group bacteria that has caused strong concerns. In this article, different aspects of microbial pollution as well as the main microbial pollution sources in the region are discussed. Coliform group ...
Autori: Mahdi Jamshidi, Mahdi Maghrebi, Masoud Tajrishy
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25627

? COMPARATIVE CONSIDERATIONS ON THE STRUCTURE OF SOME MOLYBDENUM/NIOBIUM DOUBLE PEROVSKITES OXIDES ? THE INFLUENCE OF THE STORAGE TIME ON THE STABILITY OF BUTTER ? CaCO3 CONTROLLABLE SYNTHESIS BY DOUBLE EXCHANGE METHOD USING CaCl2 RESIDUAL SOLUTIONS ? OPTIMIZATION OF COAGULATION-FLOCCULATION IN THE TREATMENT OF CANAL WATER ? ANODIC DETERMINATION OF PENTACHLOROPHENOL FROM WATER USING CARBON NANOFIBER-BASED COMPOSITE ELECTRODE ? STUDY OF PRECIPITATES GROWTH IN COAGULATION ...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25663

Our investigation in 2007 revealed that the concentration of microcystin (MC-LR) in Miyun reservoir was 0.224 μg L-1, below the safety limit of surface drinking water in China (1.0 μg L-1). The phytoplankton community in Miyun reservoir was composed of 8 divisions and 84 species (including genera and varieties). The density of phytoplangkton was 393.71?—104 cells L-1 including 24.6% of Chlorophyta, 32.5% of Cyanophyta and 15.3% of Bacillariophyta. The toxin-producing cyanobacteria incl...
Autori: Huimin Li, Guisen Du, Yumei Wu, Dianwei Wu, Jingshi Wanghttp://www.ecozone.ro/reviste.php?RID=25691

Abstract:This study aimed to assess the coagulation performance using simple aluminum sulfate (Alum) and pre-hydrolyzed polyaluminumchloride (PACl) coagulation agents by conventional global parameters, i.e., turbidity and organic matter expressed by totalorganic carbon (TOC) and chemical oxygen demand (COD), and non-conventional spectrophotometric parameters.Non-conventional spectrophotometric parameters, expressed as absorbance recorded at different wavelengths, i.e., A254, A280,A365, allowed d...
Autori: Florica Manea, Georgeta Burtică, Ilie Pisoi, Smaranda Masu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25777

Abstract:The paper describes some studies on the influence of water flow rates through water-supply networks on drinking water quality. Water residence time in pipelines for more than seven days in buried pipes and two days in above-ground pipes promotes the development of biochemical systems when the flow rates are low and very low having detrimental consequences on drinking water quality. These shortcomings are due to the residual chlorine decrease below the allowed technical limits (0.5 m/s) ...
Autori: Adrian Carabeţ, Alina Gîrbaciu, Constantin Florescu, Cristian Stăniloiu, Ion Mirel, Irina Olaru
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25799

Abstract:In this paper, the effect of the ultraviolet light on various pathogen microbial strains present in drinkable groundwater samples (wells) from Constanţa County, Romania (localities Moviliţa, Topraisar, M. Kogălniceanu) was analyzed. The investigations were conducted in an original UV-C irradiation prototype installation for water samples. The efficiency of this prototype in destroying the pathogen agents present in drinkable groundwater was established by monitoring the p...
Autori: Bogdan Negreanu-Pîrjol, Elena Gorun, Remus Zăgan, Sabina Zăgan, Ticuţa Negreanu-Pîrjol
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25802

Abstract:The effect of organic carbon loadings (OCLs) on NH4+-N and Mn2+ removal was investigated using a novel approach of biological aerated filter (BAF) for drinking water treatment system. Three different OCLs of 0.2, 0.5 and 1.0 kg COD/m3.d were loaded into BAF which was operated in batch-wise at 24 h hydraulic retention time. The experiments resulted in higher COD, NH4+-N and Mn2+ removal percentages at OCL of 1.0 kg COD/m3.d with removal of 97.1%, 97.4% and 94.7%, respectively. The +-N ef...
Autori: Hassimi Abu Hasan, Noorhisham Tan Kofli, Siti Kartom Kamarudin, Siti Rozaimah Sheikh Abdullah
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25808

Abstract:Drinking water produced in water treatment plants almost invariably fulfils the water quality requirements set, for example by the European Union Drinking Water Directive 98/83/EC (EU DWD) and national legislation. However, EU DWD requires that water quality should also meet the requirements at the consumers’ tap. The quality of drinking water changes due to the transportation through the distribution networks and the time spent in the reservoirs until the last point of consumption. W...
Autori: , Ioana Gabriela Dascalescu, Maria Cohl
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25814

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

Herbicides industry is a large consumer of water, as well as a major wastewater generator, its effluents contain priority organic pollutants in very high concentrations which have severe effects on human health and on the environment due to their toxicity and bio-recalcitrant nature, persistence in the environment and bioaccumulation. A vast number of herbicides and other priority organic pollutants have been found in wastewater effluents, surface water, and drinking water around the world. The ...
Autori: Bianca Weinberg,
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25874

A fast economic development in China over thelast three decades has lifted hundreds of millions ofpeople out of poverty. However, an annual GDPincrease of over 10% due to the large scale industrialactivities and fast urbanization has released substantialamounts of pollutants into the environment and exertedtremendous pressure on local ecosystems. Although alarge amount of investment has been made by theChinese government and a series of efforts have beenmade by the environmental regulators, scie...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25965

The first edition of the International Conference„ECOIMPULS 2012- Environmental Research andTechnology” plans to open a conference seriesdedicated exclusively environmental issues. Thescientific topics are devoted to the on-going research onenvironmental topics regarding: „Environment – apolitical, economic and social responsibility”,„Water in a changing world”, „ZERO – waste cities”and „ Energy – beyond the conventional”.This scientific event aims to bring togetherprofessionals, academics, scie...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26015

Abstract Known as the most important byproducts of water disinfection with chlorigen chemicals, trihalomethanes (THMs) are incriminated in causing severe effects upon human health. The exposure pathways that can lead to potentially significant uptake of THMs include for adults ingestion of tap water and inhalation of THMs in vapor phase resulting from bathing, showering and washing. The purpose of this paper is the exposure assessment to THMs through ingestion, inhalation and derma...
Autori: Anca Elena Gurzău
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26110

AbstractIn spite of the ambition of the Millennium Development Goals (MDGs), water supply and sanitation are still worryingly deficientin South-East Asia (SEA). Due to the rapid increase in population, increased urbanization and industrial activities, and absence ofa strong regulatory framework, water quality in this region is impaired due to the high levels of contamination. Because of thechallenge of providing safe drinking water from poor quality water sources, development of low-cost drinkin...
Autori: Pham Thi Thuy
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26202

AbstractThe extent of the problem of the excessive fluoride in drinking water remains an important health issue. In the present work,strong-base anion resins were investigated to assess their sorptive removal capacity of fluoride from water. It was found that theremoval of fluoride was high at natural pH (7) and was improved for increasing contact time and adsorbent dosage. Themaximum sorption of the resin was 13.7 mg/g according to the Langmuir model, namely higher than the values reported in t...
Autori: Mohammad Taghi Samadi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26273

AbstractIn this study, the experimental performance of a single slope solar still coupled with an evacuated tube collector was investigated. A single slope passive solar still (PSS) and single slope active solar still (ASS) integrated with an evacuated tube collector were fabricated with an area of 1 m2 and tested in the composite climate of Coimbatore, Tamilnadu, India, (Latitude: 11°N; Longitude: 77°E and an altitude of 409 m above sea level). High water  temperatures in the range of 84.2...
Autori: Karuppusamy Sampathkumar, Palanisamy Senthilkumar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26286

AbstractHexavalent chromium can contaminate drinking water resources and should therefore be removed from industrial waste effluents. The use of ion exchange resin was examined in batch tests to remove Cr (VI) from acidic solution by Amberlite IRA 410. Equilibrium data were analyzed and modelled using Freundlich and Langmuir adsorption isotherms and the results showed that the adsorption behaviour of Cr (VI) could be accurately described by means of a Langmuir model. The monolayer adsorption cap...
Autori: Abdeltif Amrane, Aicha Bensmaili, Malika Chabani, Yasmine Ait Ouaissa
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26289

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

AbstractAlgal blooms in reservoirs used for both fish and drinking water production are a major water quality problem. The authorsassessed data gathered from both published literature and from their own field enclosure experiments to analyze the relationshipsof phytoplankton chlorophyll α concentrations with biomass and algal cell count. Experimental data were collected from indoorlocations, field enclosures, and natural water bodies. Under laboratory conditions, where the types of algae an...
Autori: Chang-juan Zang, Chao Lin, Feng Gao, Hong-chuan Pan, Miklas Scholz, Min Wu, Sheng-lan Du, Sui-liang Huang, Yong Guo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26335

AbstractToxic cyanobacteria are an emerging and increasing threat to public water supplies across the world. As a result,it is essential tominimize the risk from toxic cyanobacteria and their metabolites, and the key is to be vigilant and monitor for cyanobacteria andcyanotoxins throughout the source water and the treatment plant. The present study aims to verify the validity of the traditionalprocess of coagulation and chlorination to remove microcystins (MCs) in the Xinxiang water plant in Chi...
Autori: Bang-Jun Zhang, Qiong-Qiong Ding, Wei-Hong Zhang, Xiao-Yu Li, You-Hai Xie
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26345

AbstractPathogenic bacteria are fetal to human health, requiring cost-effective and safe approaches to be removed from drinking watersource. With poly-allylamine-hydrochloride (PAAH) stabilization, magnetic nanoparticles (MNPs) were introduced in this studyto remove pathogenic bacteria by electrostatic interaction and magnet capture. High removal efficiency was achieved for fourmain pathogenic species, as Escherichia, Acinetobacter, Pseudomonas and Bacillus, and over 99.5% of the pathogens can b...
Autori: Yunfeng Xu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26475

AbstractIn this study, boron-doped diamond (BDD) electrode was tested in electrochemical oxidation and reduction processes using thesame vertical electrodes undivided cell in order to remove natural organic matter (NOM) and nitrogen compounds (NC) fromdrinking water. Boron-doped diamond-based electrochemical oxidation process has proven to be an efficient and versatilemethod suitable for NOM and NC in forms of nitrite and ammonium present in drinking water sources. However, the applicationof BDD...
Autori: Florica Manea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26492

AbstractAnalysis and monitoring of arsenic is still a challenging analytical task. Due to its complex behaviour (different forms of arsenicthat can be present depending on pH and oxidation states of arsenic) as well as demanding analytical procedures and instrumentaltools for control of arsenic concentration in drinking water which is set to 10 μg L–1, there are still some open questions andissues when arsenic is the scientific topic. In this paper the idea was to use a multivariate statist...
Autori: Vladana N. Rajakovic-Ognjanovic
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26506

AbstractEvaluation of the quality of natural waters used as sources for drinking water supply is very important for selection of the propertechnological treatment system that would ensure the compliance of physical, chemical and microbiological parameters with thespecific standards. The current study aims at investigating the quality of two natural waters used as sources for drinking watersupply of Iasi City: Prut River (surface water) and Timisesti (groundwater). The experimental analysis of th...
Autori: Maria Cohl
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26509

AbstractThe mining waste facilities in the Baia Mare region, Romania, resulted from the extraction of poly-metallic ores (including Au,Ag). Metal sulphide minerals from the mining waste facilities have a potential to produce acid rock drainage (ARD) and togenerate risk for the environment, including for the water resources. Some of the mining waste deposits from the region arelocated near the town of Baia Mare, close to the residential areas, the agricultural lands and the surface water. The sho...
Autori: Oana-Cristina Modoi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26512

AbstractThis paper presents the experimental results obtained during testing in an electromagnetic field with non-ionizing radiations fromlow-intensity microwaves acting on a group of substances consisting of: double distilled water, neutralized to pH = 7; drinkingwater with pH = 7.3; slightly acidic aqueous solutions obtained by diluting the acetic acid at concentrations of 2.25‰, 4.5‰ and9‰ in double distilled water, for pH = 6.8, 6.7 and 6.5, respectively. The exposure of the samples was perf...
Autori: Gheorghe Morariu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26562

Abstract Drinking water treatment using activated carbon (AC) decontamination offers effective methods for removing some organic compounds, tastes and odors, but it is not so efficient for metals, nitrates, microbial contaminants and other organic and inorganic contaminants. In the last years, nanotechnologies introduced several types of nanomaterials for organic, inorganic and biological removal of contaminants in drinking water, such as: sorption, filtrations and catalytic processes. In th...
Autori: Elena Radu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26671

Abstract Along with nowadays growth of urban areas and population, it is more and more important to have better water resources management, especially regarding drinking water supply. Maintaining a good state of a water distribution network poses challenges that are addressed by research community. Two of the main challenges in management of water distribution systems are the reduction of energy consumption due to the high pumping requirements in some systems and/or reduction of water losses...
Autori: Mario Castro Gama
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26747

Abstract In this study, the electrocoagulation process using aluminium anodes was tested as alternative for coagulation process for the drinking water treatment using two types of real groundwater sources, characterized by low turbidity, moderate and high organic load, and nitrite and ammonium species for one of them. The optimum operating conditions determined to be pH 6.5, current density (i) 25A/m2 at 30 min resulted in removal efficiency of over 70 % for total organic carbon (TOC) parame...
Autori: Anamaria Baciu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26756

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 Drinking of arsenic contaminated waters has been reported adversely affect our health even at a concentration level as low as 10 g/L, therefore the availability of a reliable and cheap, and an environmentally arsenic detection kit is really indispensable. Although simple field test kits have been developed, most of them use toxic mercuric salt as a color-generating reagent for arsenic detection. Hence this study was conducted to develop a simple, cost effective, and environm...
Autori: Keat Khim Ong
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26819

Abstract Isotopic composition and electrical conductivity (EC) of groundwater were analyzed to trace the source and transport of pathogenic microbes in shallow and deep groundwater wells over a depth range from 9 m to 75 m below land surface (bls). Stable isotopic composition was used for the identification of the source of water while environmental tritium contents were used to estimate the time elapsed since the recharge of the groundwater. The results revealed that drain water contaminate...
Autori: Anju Pant
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26851

Abstract Phytoremediation tests on heavy metals bioaccumulation were performed during 2012-2014 with aquatic species Lemna minor, Pistia stratiotes, Eichhornia crassipes, Vallisneria spiralis, Hydrilla verticillata, Cladophora glomerata on samples of contaminated waters collected from the toxic pond of waste landfill Şomârd-Mediaş, Sibiu County. With the purpose to check the species capacity for heavy metal removal and bioaccumulation, comparative analysis of water samples wa...
Autori: Dana Malschi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26882

Abstract Accidental oil spills represent one of the environmental threats affecting the surface water in Romania, where their number has an increasing trend during the last decade, this type of events being registered mostly on the inner rivers, and not on the Black Sea. Because the inland rivers are used as drinking water sources for populated areas and raw water for industry, the response to accidental oil spills has to be rapid and tailored to their particular dynamic conditions. The cont...
Autori: Delia Popescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26889

Abstract In Palestine, environmental problems associated with industrial solid waste (ISW) have increased significantly in recent years. This paper presents survey results on current industrial solid waste management (ISWM) practices in the governorates of Nablus and Ramallah & Al-Bireh, Palestine. Solid waste generated from industries was quantified, characterized and discussed in terms of generation rate, storage, reuse/recycling, transportation, and final disposal. An attempt was made...
Autori: Issam A. Al-Khatib
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26903

Abstract Trace metal elements commonly exist in drinking water. Excessive exposing on them may result in lots of health problems. This paper mainly focuses on the accumulations of Cu2+, Cd2+, and Pb2+ in drinking water supply networks with amorphous Al(OH)3 formation. The effects of pH, water flow rate, and metal element contents were investigated at laboratory bench scale. It was found that chemical adsorption mainly occurred at pH > 7.0. Suspended Al(OH)3 showed a strong adsorption capa...
Autori: Wendong Wang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26906

Abstract Water is one of the most important resources for sustainable development and human life. To meet future water needs, water resources and drinking water watersheds (DWWs) should be placed under protection using efficient methods. The spatial planning and spatial data has an important role in sustainable DWW management. Geographical Information Systems (GIS) is extensively used for spatial data production effectively based on spatial planning. The use of large-extended data, the analy...
Autori: Recep Nisanci
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26917

As a result of the rapid development of China’s economy, many surface and groundwater have become polluted. Assuring high quality drinking water, especially for the rural areas has recently received much attention. In this study, the drinking water quality in one centralized water supply network was evaluated by analyzing 28 pollutant indices at 35 sampling points. It was determined that the concentrations of most organoleptic and physical indices were stable in all the water samples. T...
Autori: Wendong Wang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26967

The application of chemical fertilizers and fungicides is an important source of heavy metals into the agricultural soil. Leaching and weathering can facilitate the transport of the contaminants through soil to the groundwater. In most rural areas, groundwater is used for drinking and irrigation purposes, without any treatment, population being exposed to direct contamination. The study area in this paper, Arjaat Village from Rabat Salé Zemour Zaer Region of Morocco, matches into this ...
Autori: François Xavier Nshimiyimana
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26980

Drainage water and tailings impoundments water geochemistry (pH, EC, alkalinity, trace element concentrations, major ions) were studied at the Anjir Tangeh coal washing plant. The drainage water with neutral to alkaline pH values, high SO42- concentration and low metal content represented typical neutral alkaline mine drainage (NAMD). According to the Stiff and Piper diagrams, the majority of water samples classified into Ca-Mg-HCO3- type except drainage and processing water which were placed...
Autori: Majid Shahhosseini
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26997

This paper reports the distribution of natural uranium in different underground water sources and health risk evaluation around Narora Atomic Power Station, Narora, India. The uranium concentration at studied locations ranged from BDL (<0.2 μg/L) to 32.37 μg/L with geometric mean (GM) of 6.4 μg/L and geometric standard deviation of 7.85. The life time average daily dose of uranium in drinking water was 0.64 μg kg-1 day-1. The cancer morbidity and mortality risk were also calcul...
Autori: Manbir Singh
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27001

Within the framework of the Water Safety Plan (WSP), it is necessary to assess and to manage risks in the catchment area, considered the first protection barrier of water supply systems. The Cauca River is one of the major water resources of Colombia and the principal source of drinking water supply for the city of Cali (approx. 2,300,000 people). Taking into account, usually in developing countries, available information and specialized technical resources are limited, in this study were eva...
Autori: Andrea Pérez-Vidal
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27010

The arsenic removal from aqueous medium was investigated through adsorption by employing finely powdered bark of Pinus roxburghii Sarg. The batch mode laboratory scale experiments were conducted to investigate the removal efficiency of Pinus bark against total arsenic and the effect of pH, contact time, adsorbent dose and initial adsorbate concentration on adsorption to optimize the process. Langmuir and Freundlich isotherms were used to validate the adsorption data and respective constants w...
Autori: Syed Hasnain Shah
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27013

The removal of toxic heavy metal ions such as lead and zinc from industrial and mining wastewaters has been widely studied because their existence in surface and underground water is responsible for several types of health problems caused to animals and human beings. Also, there are some organic compounds, which must be prevented from reaching in drinking water from various sources of pollution. For these reasons in this paper the experiments were conducted to study the ability of activated ...
Autori: Cristina Ileana Covaliu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27027

Urban water cycle, managing water supply, distribution, potabilization and wastewater treatment, comprehensively involve a considerable consumption of chemicals and energy. This study proposes an overview of the factors contributing to the environmental impact of Water Treatment (WT) process. The approach is based on the evaluation of Carbon Footprint, the environmental indicator able to relate direct and indirect emissions generated by any process in terms of CO2 equivalents. Energy consump...
Autori: Florina Fabian
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27113

Microbial Fuel Cells (MFCs), the bioelectrochemical devices for conversion of waste into electricity through bacterial metabolic activity can use substrates with different complexity and strength. Wastewaters with moderate to high organic content can be exploited as MFC substrates. In this study, four different industrial wastewaters (from a chemical company, milk industry, soyabased food and soft-drink company and laundry) with different compositions were used as substrates in identical MFCs...
Autori: Deepak Pant
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27117

Waste from a cola beverage industry containing high concentration of phosphorus (P) was treated by the struvite precipitation method. The influence of excess of ammonia and order of reagent addition were evaluated as independent variables on the removal and recovery of phosphorus from cola beverage waste. It was removed about 95% of P of the sample in a short reaction time. The precipitated crystals were identified and analyzed by X-ray Diffraction (XRD), infra-red spectroscopy (IR) and surface ...
Autori: Wilson Roberto Barreto dos Santos
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27188

Water quality index is an essential tool for water quality assessment. Considering the frequent use of automated water quality monitoring systems, their importance in generating data and information for the efficient management of water treatment plants, the design of such an index would allow the detection of point-pollution episodes, which otherwise would occur undetected and would have a significant impact on the water quality and its further treatment. In this study, a versatile weighted wat...
Autori: Ioana Gabriela Dascalescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27271

Water is the source of life and a high water quality leads to a harmonious development of the surrounding environment (biotic and abiotic) and of humans. When water is loaded with various chemicals due to erosion, corrosion and human activities, the pollution phenomenon appears, causing harmfull effects over plant and animal organisms. The presence in water of substances derived from agriculture or mismanagement of manure organic obtained from various species of domestic animals affects the envi...
Autori: Alina Simionică Bădilă
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27285

The present study proposes a chlorination schedule calibrated for the Drinking Water Distribution Network (DWDN) of Buzau - a medium sized city, in South-Eastern Romania. The numerical model of Buzau's DWDN was set up in EPANET, considering the main pipes of the network that interconnect 4 pumping stations and 45 booster stations (viewed here as end-users). The calibration of the numerical model was based on real-time recordings available for January and July 2014. The chlorination schedulin...
Autori: Sanda-Carmen Georgescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27301

Arsenic removal from groundwater as drinking water source was investigated using electrocoagulation (EC) process with horizontal anodes of iron plate under galvanostatic regime. The current density of 5 A·m-2 was determined as the optimum operating conditions at the electrolysis time of maximum 25 minutes and pH ranged between 6.5 to 8.5, by which the arsenic concentration was reduced below 10 μg·L-1. The aspects related to the arsenic removal mechanism were discussed by Zeta...
Autori: Aniela Pop
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27327

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

This work aims to study the physicochemical and biological parameters of Boukerdene Dam’s water and treated water at different steps of the treatment processes in Sidi-Amar’s Station (Tipaza, Algeria) with a particular interest to the phytoplankton. This work is also related to the demonstration of the enhanced coagulation (EC) process as an efficient method in algae and organic matter (OM) removal from surface water by its application in jar tests. The diversity of the phytoplank...
Autori: Djamel Ghernaout
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27459

This paper displays the kinetics of the corrosion process for short-term immersion of seven mild steel samples of similar compositions. A comparison between the data obtained for corrosion process in three types of water: bidistilled water (BW), drinking water (DW) (tap water) and river water (RW) (from Bahlui River, Iasi, Romania) has been done. Electrochemical techniques such as the cyclic voltammetry (CV), the linear voltammetry (LV) and the rotating disk electrode technique (RDE) have been u...
Autori: Alexandra Ciomaga
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27460

Three different hydraulic retention times (HRTs) were investigated for NH4+-N and Mn2+ removal using an upflow biological aerated system (BAF) as a new approach in drinking water treatment system. Currently in Malaysia, there is no specific treatment for NH4+-N and Mn2+ in drinking water treatment plant. BAF is a well known system in biological treatment for wastewater but not for drinking water treatment. This study showed that at 24 hours operation of BAF system, about 91.3% of COD, 94.4% of N...
Autori: Hassimi Abu Hasan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27543

Simulation experiments were conducted to investigate the behaviour of ozonation by-products and the removal of organic matter in the treatment of the Pearl River raw water. The treatment processes include pre-ozonation, conventional treatment processes (coagulation/sedimentation and sand filtration), post-ozonation and granular activated carbon (GAC) filtration. Treatment efficiency of each unit process was evaluated by using several parameters such as permanganate index (CODMn), ultraviolet abs...
Autori: Yue Wu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27580

The influence of the active compound of Moringa oleifera Lam (MO) seeds was evaluated by different methods for the preparation of the natural coagulant in the treatment of surface water. Nine methods were analyzed, comprising samples of seed powder with different granulometry, aqueous and saline solutions, evaluated before and after oil extraction from MO seeds. Tests of coagulation/flocculation and sedimentation were accomplished using simple Jar Test. Natural coagulant dose of 50 mg.L-1 identi...
Autori: Karina Cardoso Valverde
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27588

In this study, the concentrations of 15 phenol derivatives were analyzed from the phreatic and groundwater wells surrounding a decommissioned chemical factory in a village from the western part of Romania. An UPLC-MS method was used to assess the concentrations of the chemical target compounds in the water samples. The most frequent compounds were 4-chlorophenol, 4-tertoctylphenol and 4-nonylphenol, being detected in 17 of the 19 sampling sites, while the least frequent compound was 2,4,6- t...
Autori: Elena Preda
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27661

Bottled water (commonly called mineral) makes an important source of minerals for humans. Its consumption has been systematically rising in the highly industrialized countries, even though not every water type has appropriate health properties. As a result, drinking bottled water ought to be supported with understanding its qualities and physicochemical content. The following article presents the results of the research into pH levels, electrical conductivity, selected inorganic anions (F-, Cl-...
Autori: Rajmund Michalski
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27693

The presence of nitrogen in its reduced forms serves as an indicator of natural aquatic system degradation. The excessive concentrations of nitrogen in reduced forms (NH4+, NO2-) found in the sections of the the Shireutsi (of the Prut River) and the Olaneshti (of the Nistru River) prove that these sites are areas to focus efforts on improving water quality. Laboratory simulations indicate a good environmental buffer action of natural waters to potential pollution in Sculeni and Ungheni sections ...
Autori: Petru Spataru
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27698

This paper aims to identify the influencing factors of the acceptable amount of compensation (AAC) of farmers for controlling fertilizer-induced water pollution, and build a valid ecological compensation mechanism to curb the water impact. To this end, the ecological compensation for farmers is viewed as a good way to reduce fertilizer-induced pollution at drinking water sources, and the opportunity cost is introduced into the discussion of farmers’ AAC. To avoid the gaps of previous studi...
Autori: Jie Lin
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27781

This paper aims to pioneer the research into the dry nitrogen deposition in reservoirs serving as drinking water sources. For this purpose, several field experiments were performed to investigate the dry deposition in Xiaotaipingyang, Danjiangkou Reservoir (Henan) from September 2015 to August 2017. Sample concentrations were measured for NH4+-N, NO3--N and total dry deposition (TDN). Then, dry deposition flux of NH4+-N, NO3--N and TDN were estimated based on the measured concentrations and samp...
Autori: Luo Ling
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27749

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

Algal bloom can represent a serious consequence of the eutrophication of surface water. Some of these algae, called cyanobacteria, are of particular interest for their effect on human health due to their capacity to produce cyanotoxins. In many countries, in fact, there are important problems of poisoning attributed to toxic cyanobacteria and contamination of water sources (specially lakes) resulting in increased cyanobacterial growth. Cyanobacteria can become particularly harmful for humans whe...
Autori: Sabrina Sorlini
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27800

The water supply system is very important for the development of the country. Furthermore, a wastewater treatment with more than two levels of treatment decreases the risk of environmental pollution with heavy metals and better cleans the water that will be reused. According to Eurostat, in 2011 more than 40% of the Romanian population was not connected to the public water supply and even more to the wastewater system. In the present study raw data were analyzed and plotted to show the evolut...
Autori: Stefan-Adrian Strungaru
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27911

Drinking water treatment aims to avoid or minimize some risks to human health and to provide adequate water quality by removing physical, chemical and biological contaminants. However, treatment processes require increasing efforts in terms of technology, chemicals and energy inputs, which generate increased secondary environmental impacts and added water production costs. The objective of this study is to evaluate the drinking water treatment plant (DWTP) in Iasi City (Romania) by life cycle...
Autori: George Barjoveanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27922

We assessed the variability of the main physico-chemical parameters of drinking water: oxidability, turbidity, conductivity, water hardness, free chlorine concentration, chlorides and nitrates across the four seasons (Spring, Summer, Autumn of 2013 and Winter of 2014). We collected data from several points in the supply network of Satu Mare city, NW of Romania, where the source of drinking water is groundwater. The results revealed significant higher average values in spring for some of the ...
Autori: Thomas Dippong
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27928

• 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

• 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

This study presents the influence of the storage recipients’ material and of the use and the type of stirring on the drinking water quality. The kinetics of drinkable water quality alteration under stationary conditions and under magnetic and sonical stirring have been monitored for a two weeks period. The microbiological parameters (total number of germs developed at 37°C and 22°C, lactose-positive and lactose-negative bacteria, coliform bacteria and Echerichia coli), as well a...
Autori: Laura Damian
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27999

This study is a comparative assessment of domestic water quality collected from 35 sampling points in seven typical rural communities in Abia State, Southeast Nigeria. Physicochemical parameters such as pH, conductivity, turbidity and bacteriological parameters such as plate count and total coliform were analysed in the laboratory using standard World Health Organization (WHO) methodology. Results indicate that there are significant variations (p<0.05) in the physicochemical parameters of the...
Autori: Oliver O. Odikamnoro
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28054

This paper focuses on the effect of some water quality parameters of river water which helps in the calculation of water quality index (WQI) that culminates in the development of a regression model for prediction of WQI of the river system in India. The index was calculated by arithmetic index method using twelve various experimentally estimated water quality parameters such as potential hydrogen, chlorides, dissolved oxygen saturation, nitrates, sulphates, phosphates, total dissolved solids, bi...
Autori: Divya Airattil Haridas
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28065

In recent years, so-called emerging contaminants (ECs) have attracted growing interest as they have been detected in reservoirs and even in drinking water. The new proposal Drinking Water Directive (2018) provides for the introduction of new parameters relevant to the ECs category. As these contaminants today tend to be present in a growing number of water sources, provide treatment systems that ensure compliance with regulatory limits and the protection of public health has become essential. Th...
Autori: Sabrina Sorlini
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28081

Balkan endemic nephropathy (BEN) is a chronic kidney disease occurring predominantly in certain rural villages from Balkan Peninsula, including Romania. Peculiar environmental factors, such as drinking water, organic contaminants derived from coal, plant toxins, mycotoxins, heavy metals have been proposed to be causing the disease. Still, one of these etiological factors stands out: Aristolochia clematitis L., a plant that contains aristolochic acids (AAs) known as carcinogenic and nephrotoxic c...
Autori: Lavinia Paula Drăghia
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28104

For efficient management of the losses of drinking water distribution networks, it is essential to have a precise knowledge of the system and its infrastructures. In this context, our study focused on describing two drinking water distribution networks, from two different countries: Rabat and Sale, Morocco and Timisoara, Romania, for water losses over a period of four and five years, respectively. The work consists of calculating some performance indicators to establish thematic maps using Geogr...
Autori: Ziane Imane
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28113

To produce drinking water, the water treatment plants generate huge quantities of sludge, this sludge is a waste and they are evacuated to the dump. The valuation of these sludge will be benific This study focuses on the development of composite alginates beads and sludge activated chemically by sulphuric acid and thermally for the removal of dyes from aqueous solutions. Two dyes were studied; a basic cationic dye (methylene blue) and an acidic anionic dye (Congo red) to compare the adsorption m...
Autori: Hasna Elmontassir
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28125

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

The paper is focused on the integrated modelling of environmental quality. It shows how we can use multi-criteria decision analysis to study some aspects about the environmental quality status in a region and its evolution during a certain period of time. The global analysis is created by taking into account the concurrent contributions of different factors such as air quality, drinking-water quality and noise pollution, on the quality of the environment people live in. We propose an indicator,...
Autori: Luminita Grecu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28246

Bad water quality has serious implications for human health, which may include gastrointestinal, liver, respiratory diseases and even cancer. In view of drinking water hardness in the study area, it was hypothesized that bad water quality has some association with the renal disorders. The possible association between nephrolithiasis, drinking water quality and diet in human subjects in district Abbottabad, Pakistan was investigated. Drinking water samples were collected from different areas (tot...
Autori: Suneela Jadoon
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28252

The quality of drinking water can be kept under control through the protection of raw water sources and the permanent monitoring and control of the processes of treatment and distribution of drinking water. The dangers and risks faced by drinking water supply systems may arise from inside or outside the system. Water disinfection is the key element behind obtaining and maintaining quality. Chlorine is the most widely used disinfectant, due to its high efficiency. However, it has a major disadvan...
Autori: Alice Iordache
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28254

The adoption of the Water Safety Plan (WSP) approach, as recommended by the World Health Organization, represents the most effective means to guarantee public health protection and improve drinking water safety. WSP is a risk assessment and management approach applied to all phases of the water supply chain. This study presents the development and implementation of the WSP for the municipality of Florence. The Florence drinking water supply system (DWSS) has two drinking water treatment plants ...
Autori: Roberta Muoio
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28303