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You searched for: Journal name Water research Remove constraint Journal name: Water research Publication year rev 7985-2015 Remove constraint Publication year rev: 7985-2015
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1. Action spectra for validation of pathogen disinfection in medium-pressure ultraviolet (UV) systems

Author:
Sara E. Beck; Harold B. Wright; Thomas M. Hargy; Thomas C. Larason; Karl G. Linden
Source:
Water research 2015 v.70 pp. 27-37
ISSN:
0043-1354
Subject:
Bacillus pumilus; Cryptosporidium parvum; bacteria; coliphages; disinfection; dose response; monitoring; pathogens; prediction; spores; ultraviolet radiation; wastewater; wavelengths
Abstract:
... Ultraviolet (UV) reactors used for disinfecting water and wastewater must be validated and monitored over time. The validation process requires understanding the photochemical properties of the pathogens of concern and the challenge microorganisms used to represent them. Specifically for polychromatic UV systems, the organisms' dose responses to UV light and their sensitivity across the UV spectru ...
DOI:
10.1016/j.watres.2014.11.028

2. Adaptation of Fusarium oxysporum and Fusarium dimerum to the specific aquatic environment provided by the water systems of hospitals

Author:
Christian Steinberg; Julie Laurent; Véronique Edel-Hermann; Marie Barbezant; Nathalie Sixt; Frédéric Dalle; Serge Aho; Alain Bonnin; Philippe Hartemann; Marc Sautour
Source:
Water research 2015 v.76 pp. 53-65
ISSN:
0043-1354
Subject:
Fusarium oxysporum; agar; amphotericin B; aquatic environment; biofilm; buildings; clones; coatings; copper sulfate; epidemiological studies; fungi; fungicide resistance; genes; glucose; hospitals; pipes; sodium hypochlorite; soil; temperature; translation (genetics); water distribution; France
Abstract:
... Members of the Fusarium group were recently detected in water distribution systems of several hospitals in the world. An epidemiological investigation was conducted over 2 years in hospital buildings in Dijon and Nancy (France) and in non-hospital buildings in Dijon. The fungi were detected only within the water distribution systems of the hospital buildings and also, but at very low concentration ...
DOI:
10.1016/j.watres.2015.02.036

3. Adsorption of MS2 on oxide nanoparticles affects chlorine disinfection and solar inactivation

Author:
Wen Zhang; Xuezhi Zhang
Source:
Water research 2015 v.69 pp. 59-67
ISSN:
0043-1354
Subject:
adsorption; aluminum oxide; bacteriophages; chlorine; colloids; disinfection; nanoparticles; silica; solar radiation; titanium dioxide; viability; water treatment; zinc oxide
Abstract:
... Adsorption on colloidal particles is one of the environmental processes affecting fate, transport, viability or reproducibility of viruses. This work studied colloidal interactions (adsorption kinetics and isotherms) between different oxide nanoparticles (NPs) (i.e., TiO2, NiO, ZnO, SiO2, and Al2O3) and bacteriophage, MS2. The results shows that that all oxide NPs exhibited strong adsorption capac ...
DOI:
10.1016/j.watres.2014.11.013

4. Adsorption of synthetic organic contaminants by carbon nanotubes: A critical review

Author:
Onur Guven Apul; Tanju Karanfil
Source:
Water research 2015 v.68 pp. 34-55
ISSN:
0043-1354
Subject:
adsorption; carbon nanotubes; hydrochemistry; physicochemical properties; surveys
Abstract:
... In last ten years, a large number (80+) of articles regarding aqueous phase adsorption of a variety of synthetic organic compound (SOC) by CNTs were published in peer-reviewed journals. Adsorption depends upon the physicochemical properties of the adsorbates and CNTs as well as the background water chemistry. Among all properties reported in the literature, no parameter was reported as solely cont ...
DOI:
10.1016/j.watres.2014.09.032

5. Ammonia and temperature determine potential clustering in the anaerobic digestion microbiome

Author:
Jo De Vrieze; Aaron Marc Saunders; Ying He; Jing Fang; Per Halkjaer Nielsen; Willy Verstraete; Nico Boon
Source:
Water research 2015 v.75 pp. 312-323
ISSN:
0043-1354
Subject:
Bacteroidales; Clostridiales; Lactobacillales; Methanobacteriales; Methanosaetaceae; Proteobacteria; ammonia; anaerobic digestion; bacterial communities; biogas; community structure; environmental factors; environmental technology; methane production; methanogens; microbiome; production functions; quantitative polymerase chain reaction; temperature
Abstract:
... Anaerobic digestion is regarded as a key environmental technology in the present and future bio-based economy. The microbial community completing the anaerobic digestion process is considered complex, and several attempts already have been carried out to determine the key microbial populations. However, the key differences in the anaerobic digestion microbiomes, and the environmental/process param ...
DOI:
10.1016/j.watres.2015.02.025

6. Ammonia-oxidizing microbial communities in reactors with efficient nitrification at low-dissolved oxygen

Author:
Colin M. Fitzgerald; Pamela Camejo; J. Zachary Oshlag; Daniel R. Noguera
Source:
Water research 2015 v.70 pp. 38-51
ISSN:
0043-1354
Subject:
Nitrosomonas; Pseudomonas; Sphingomonas; Xanthomonadaceae; ammonia; anaerobic ammonium oxidation; bacteria; dissolved oxygen; fluorescence in situ hybridization; microbial communities; nitrates; nitrites; oxidation; oxygen; prokaryotic cells; quantitative polymerase chain reaction; ribosomal DNA; sequence analysis; sludge; wastewater treatment
Abstract:
... Ammonia-oxidizing microbial communities involved in ammonia oxidation under low dissolved oxygen (DO) conditions (<0.3 mg/L) were investigated using chemostat reactors. One lab-scale reactor (NS_LowDO) was seeded with sludge from a full-scale wastewater treatment plant (WWTP) not adapted to low-DO nitrification, while a second reactor (JP_LowDO) was seeded with sludge from a full-scale WWTP alread ...
DOI:
10.1016/j.watres.2014.11.041
PubMed:
25506762
PubMed Central:
PMC4564296

7. Anaerobic ammonium oxidation in traditional municipal wastewater treatment plants with low-strength ammonium loading: Widespread but overlooked

Author:
Shanyun Wang; Yongzhen Peng; Bin Ma; Shuying Wang; Guibing Zhu
Source:
Water research 2015 v.84 pp. 66-75
ISSN:
0043-1354
Subject:
ammonia; anaerobic ammonium oxidation; biodiversity; denitrification; dissolved oxygen; ecosystems; freshwater; genes; habitats; hydrazine; municipal wastewater; nitrifying bacteria; nitrites; nitrogen; nitrogen cycle; oxidation; summer; wastewater treatment; winter
Abstract:
... Occurrence of anaerobic ammonium oxidation (anammox) in marine and freshwater systems has greatly changed our understanding of global nitrogen (N) cycle and promoted the investigation of the role and ecological features of anammox in anthropogenic ecosystems. This study focused on the spatio-temporal abundance, activity, and biodiversity of anammox bacteria in full-scale municipal wastewater treat ...
DOI:
10.1016/j.watres.2015.07.005

8. Analysis of polyethylene microplastics in environmental samples, using a thermal decomposition method

Author:
Erik Dümichen; Anne-Kathrin Barthel; Ulrike Braun; Claus G. Bannick; Kathrin Brand; Martin Jekel; Rainer Senz
Source:
Water research 2015 v.85 pp. 451-457
ISSN:
0043-1354
Subject:
thermogravimetry; polyethylene; thermal degradation; desorption; gas chromatography-mass spectrometry
Abstract:
... Small polymer particles with a diameter of less than 5 mm called microplastics find their way into the environment from polymer debris and industrial production. Therefore a method is needed to identify and quantify microplastics in various environmental samples to generate reliable concentration values. Such concentration values, i.e. quantitative results, are necessary for an assessment of micro ...
DOI:
10.1016/j.watres.2015.09.002

9. Analysis of the persistence of enteric markers in sewage polluted water on a solid matrix and in liquid suspension

Author:
Yolanda Brooks; Asli Aslan; Sushil Tamrakar; Bharathi Murali; Jade Mitchell; Joan B. Rose
Source:
Water research 2015 v.76 pp. 201-212
ISSN:
0043-1354
Subject:
Bacteroides; Enterococcus; Escherichia coli; autoclaving; bacteria; beta-mannosidase; indicator species; monitoring; nonlinear models; quantitative polymerase chain reaction; ribosomal DNA; risk assessment; river water; sewage; temperature; water pollution; water quality
Abstract:
... Addressing the persistence of bacterial indicators using qPCR and their respective DNA targets under various conditions is a critical part of risk assessment for water quality monitoring. The goal of this study was to examine the persistence of fecal indicator bacteria (FIB) via Escherichia coli uidA, enterococci 23S rDNA and Bacteroides thetataiotaomicron 1,6 alpha mannanase from cells attached t ...
DOI:
10.1016/j.watres.2015.02.039

10. Anatoxin-a producing Tychonema (Cyanobacteria) in European waterbodies

Author:
S. Shams; C. Capelli; L. Cerasino; A. Ballot; D.R. Dietrich; K. Sivonen; N. Salmaso
Source:
Water research 2015 v.69 pp. 68-79
ISSN:
0043-1354
Subject:
DNA; Tychonema bornetii; Tychonema bourrellyi; databases; freshwater ecosystems; lakes; metabolomics; microcystins; multigene family; nucleotide sequences; phylogeny; polymerase chain reaction; ribosomal RNA; sequence homology; species identification; surface water; toxicity; Italy; Norway
Abstract:
... In order to identify the cyanobacterial species responsible of anatoxin-a (ATX) production in Lake Garda (Northern Italy), an intensive isolation and culturing of filamentous cyanobacteria were established since 2014 from environmental samples. In this work, we report a detailed account of the strategy adopted, which led to the discovery of a new unexpected producer of ATX, Tychonema bourrellyi. S ...
DOI:
10.1016/j.watres.2014.11.006

11. Application of low-mixing energy input for the coagulation process

Author:
Yamuna S. Vadasarukkai; Graham A. Gagnon
Source:
Water research 2015 v.84 pp. 333-341
ISSN:
0043-1354
Subject:
absorbance; carbon; coagulation; dissolved organic matter; energy; energy conservation; ferric sulfate; industry; mixers; mixing; pH; tanks; turbidity; water conservation
Abstract:
... Rapid-mixing tanks with mechanical mixers are a common design used in treatment plants. Yet, the role of such rapid-mixing systems on the effectiveness of the coagulation performance is unclear. This study looked at optimizing the direct energy used in the coagulation process for removal of natural dissolved organic matter (DOM). The role of coagulation mixing intensity (G-value) on total organic ...
DOI:
10.1016/j.watres.2015.07.049

12. Applying a statewide geospatial leaching tool for assessing soil vulnerability ratings for agrochemicals across the contiguous United States

Author:
Seo Jin Ki; Chittaranjan Ray; Mohamed M. Hantush
Source:
Water research 2015 v.77 pp. 107-118
ISSN:
0043-1354
Subject:
2,4-D; agrochemicals; aquifers; atrazine; crops; glyphosate; groundwater; leaching; picloram; simazine; soil horizons; soil properties; vadose zone; volatile organic compounds; Hawaii; Midwestern United States
Abstract:
... A large-scale leaching assessment tool not only illustrates soil (or groundwater) vulnerability in unmonitored areas, but also can identify areas of potential concern for agrochemical contamination. This study describes the methodology of how the statewide leaching tool in Hawaii modified recently for use with pesticides and volatile organic compounds can be extended to the national assessment of ...
DOI:
10.1016/j.watres.2015.03.009

13. Are fecal indicator bacteria appropriate measures of recreational water risks in the tropics: A cohort study of beach goers in Brazil?

Author:
Claudia Condé Lamparelli; Kristen Pogreba-Brown; Marc Verhougstraete; Maria Inês Zanoli Sato; Antonio de Castro Bruni; Timothy J. Wade; Joseph N.S. Eisenberg
Source:
Water research 2015 v.87 pp. 59-68
ISSN:
0043-1354
Subject:
guidelines; urban areas; summer; sand; risk; public health; tropics; beaches; swimming; pathogens; Escherichia coli; water quality; humans; monitoring; indicator species; cohort studies; Enterococcus; temperate zones; income; tourism; Brazil
Abstract:
... Regulating recreational water exposure to pathogens within the tropics is a major public health and economic concern. Although numerous epidemiological studies estimating the risk to recreational marine water exposure have been conducted since the 1950s, few studies have been done in the tropics. Furthermore, many have suggested that the use of fecal indicator bacteria for monitoring recreational ...
DOI:
10.1016/j.watres.2015.09.001

14. Assessing interdependent operational, tactical and strategic risks for improved utility master plans

Author:
Ana Luís; Fiona Lickorish; Simon Pollard
Source:
Water research 2015 v.74 pp. 213-226
ISSN:
0043-1354
Subject:
business enterprises; experts; interviews; planning; profitability; risk; risk management; water quality; water quantity; water supply; water utilities
Abstract:
... Risk management plays a key role in water utilities. Although risk tools are well-established at operational levels, approaches at the strategic level are rarely informed by systemic assessments of the water supply and lack a long-term perspective. Here, we report a baseline strategic risk analysis, founded on a systemic analysis of operational risks developed ‘bottom-up’ and validated in a large ...
DOI:
10.1016/j.watres.2015.02.021

15. Assessing the ecological long-term impact of wastewater irrigation on soil and water based on bioassays and chemical analyses

Author:
Elisabeth Richter; Fabian Hecht; Nadine Schnellbacher; Thomas A. Ternes; Arne Wick; Florian Wode; Anja Coors
Source:
Water research 2015 v.84 pp. 33-42
ISSN:
0043-1354
Subject:
Arthrobacter globiformis; Avena sativa; Brassica napus; Daphnia magna; Eisenia fetida; Enchytraeus; Folsomia candida; Lemna minor; Selenastrum capricornutum; bioassays; chemical analysis; groundwater recharge; growth retardation; lentils; long term effects; phytotoxicity; plant growth; plants (botany); pollutants; reproduction; risk; soil bacteria; soil habitats; soil pollution; soil water; surface water; wastewater; wastewater irrigation; water quality; water shortages; zinc
Abstract:
... The reuse of treated wastewater for irrigation and groundwater recharge can counteract water scarcity and reduce pollution of surface waters, but assessing its environmental risk should likewise consider effects associated to the soil. The present study therefore aimed at determining the impact of wastewater irrigation on the habitat quality of water after soil passage and of soil after percolatio ...
DOI:
10.1016/j.watres.2015.07.013

16. Assessment of toxicity and genotoxicity of low doses of 5-fluorouracil in zebrafish (Danio rerio) two-generation study

Author:
Róbert Kovács; Zsolt Csenki; Katalin Bakos; Béla Urbányi; Ákos Horváth; Vera Garaj-Vrhovac; Goran Gajski; Marko Gerić; Noelia Negreira; Miren López de Alda; Damià Barceló; Ester Heath; Tina Kosjek; Bojana Žegura; Matjaž Novak; Irena Zajc; Špela Baebler; Ana Rotter; Živa Ramšak; Metka Filipič
Source:
Water research 2015 v.77 pp. 201-212
ISSN:
0043-1354
Subject:
DNA damage; Danio rerio; adults; aquatic ecosystems; aquatic environment; chronic exposure; dose response; erythrocytes; experimental design; fish; fluorouracil; gene expression; gene expression regulation; genotoxicity; gills; gonads; histopathology; kidneys; liver; neoplasms; oncogenes; pollutants; reproduction; therapeutics; transcriptomics
Abstract:
... Residues of anti-neoplastic drugs represent new and emerging pollutants in aquatic environments. Many of these drugs are genotoxic, and it has been postulated that they can cause adverse effects in aquatic ecosystems. 5-Fluorouracil (5-FU) is one of the most extensively used anti-neoplastic drugs in cancer therapy, and this article describes the results of the first investigation using a two-gener ...
DOI:
10.1016/j.watres.2015.03.025

17. Associations of chemical tracers and faecal indicator bacteria in a tropical urban catchment

Author:
E. Ekklesia; P. Shanahan; L.H.C. Chua; H.S. Eikaas
Source:
Water research 2015 v.75 pp. 270-281
ISSN:
0043-1354
Subject:
acetaminophen; active ingredients; boron; caffeine; cholesterol; coprostanol; data collection; detergents; drainage water; feces; human health; humans; ibuprofen; indicator species; land use; methylene blue; phthalates; residential areas; saccharin; sewage; sucralose; surface water; tracer techniques; wastewater; water pollution; water quality; watersheds
Abstract:
... Surface water contamination by human faecal wastes is a widespread hazard for human health. Faecal indicator bacteria (FIB) are the most widely used indicators to assess surface water quality but are less-human-specific and have the potential to survive longer and/or occur naturally in tropical areas. In this study, 13 wastewater chemicals (chloride, boron, orthosphophate, detergents as methylene ...
DOI:
10.1016/j.watres.2015.02.037

18. Attenuation of trace organic compounds (TOrCs) in bioelectrochemical systems

Author:
Craig M. Werner; Christiane Hoppe-Jones; Pascal E. Saikaly; Bruce E. Logan; Gary L. Amy
Source:
Water research 2015 v.73 pp. 56-67
ISSN:
0043-1354
Subject:
acetates; atrazine; biocides; bioelectrochemistry; biotransformation; caffeine; carbon; deet; electric current; electrodes; electrolysis; energy; hydrogen; hydrophilicity; microbial fuel cells; microorganisms; municipal wastewater; pH; phosphates; sorption; trimethoprim; wastewater treatment
Abstract:
... Microbial fuel cells (MFCs) and microbial electrolysis cells (MECs) are two types of microbial bioelectrochemical systems (BESs) that use microorganisms to convert chemical energy in wastewaters into useful energy products such as (bio)electricity (MFC) or hydrogen gas (MEC). These two systems were evaluated for their capacity to attenuate trace organic compounds (TOrCs), commonly found in municip ...
DOI:
10.1016/j.watres.2015.01.013

19. Benthic community recovery from brine impact after the implementation of mitigation measures

Author:
Yoana Del-Pilar-Ruso; Elena Martinez-Garcia; Francisca Giménez-Casalduero; Angel Loya-Fernández; Luis Miguel Ferrero-Vicente; Candela Marco-Méndez; Jose Antonio de-la-Ossa-Carretero; José Luis Sánchez-Lizaso
Source:
Water research 2015 v.70 pp. 325-336
ISSN:
0043-1354
Subject:
Sabellidae; autumn; benthic organisms; desalination; industry; mixing; salinity; seawater; Spain
Abstract:
... In many regions, seawater desalination is a growing industry that has its impact on benthic communities. This study analyses the effect on benthic communities of a mitigation measure applied to a brine discharge, using polychaete assemblages as indicator. An eight-year study was conducted at San Pedro del Pinatar (SE Spain) establishing a grid of 12 sites at a depth range of 29–38 m during autumn. ...
DOI:
10.1016/j.watres.2014.11.036

20. Biodegradation of pharmaceuticals in hospital wastewater by staged Moving Bed Biofilm Reactors (MBBR)

Author:
Mònica Escolà Casas; Ravi Kumar Chhetri; Gordon Ooi; Kamilla M.S. Hansen; Klaus Litty; Magnus Christensson; Caroline Kragelund; Henrik R. Andersen; Kai Bester
Source:
Water research 2015 v.83 pp. 293-302
ISSN:
0043-1354
Subject:
X-radiation; analgesics; antibiotics; beta-adrenergic antagonists; biodegradation; biofilm; biomass; hospitals; municipal wastewater; nitrification; pollutants
Abstract:
... Hospital wastewater represents a significant input of pharmaceuticals into municipal wastewater. As Moving Bed Biofilm Reactors (MBBRs) appear to remove organic micro-pollutants, hospital wastewater was treated with a pilot plant consisting of three MBBRs in series. The removal of pharmaceuticals was studied in two experiments: 1) A batch experiment where pharmaceuticals were spiked to each reacto ...
DOI:
10.1016/j.watres.2015.06.042

21. Biofilm increases permeate quality by organic carbon degradation in low pressure ultrafiltration

Author:
A. Chomiak; J. Traber; E. Morgenroth; N. Derlon
Source:
Water research 2015 v.85 pp. 512-520
ISSN:
0043-1354
Subject:
biodegradability; biofilm; biofouling; carbon; dextran; gel chromatography; gravity; hydrolysis; molecular weight; polystyrenes; river water; ultrafiltration
Abstract:
... We investigated the influence of biofouling of ultrafiltration membranes on the removal of organic model foulants and ultimately on the quality of permeate. Gravity Driven Membrane ultrafiltration (GDM) membrane systems were operated with modified river water during five weeks without control of the biofilm formation. Three GDM systems were studied: two systems with biofilms exposed to (A) variabl ...
DOI:
10.1016/j.watres.2015.08.009

22. Biogenic acids produced on epoxy linings installed in sewer crown and tidal zones

Author:
M. Valix; K. Shanmugarajah
Source:
Water research 2015 v.80 pp. 217-226
ISSN:
0043-1354
Subject:
bacteria; concrete; corrosion; epoxides; fungi; hydrogen sulfide; metabolism; microbial growth; organic acids and salts; pH; pipes; sewer systems
Abstract:
... In this study the biogenic acids generated by microbes on the surface of Bisphenol A epoxy mortar coupons were investigated for up to 30 months. The epoxy coupons were installed in six sewers in three city locations, Sydney, Melbourne and Perth. Coupons were installed in both the crown and the tidal zones of the sewers to capture the effect of location within the pipe on acid production. The coupo ...
DOI:
10.1016/j.watres.2015.05.027

23. Biological and physico-chemical formation of Birnessite during the ripening of manganese removal filters

Author:
Jantinus H. Bruins; Branislav Petrusevski; Yness M. Slokar; Koen Huysman; Koen Joris; Joop C. Kruithof; Maria D. Kennedy
Source:
Water research 2015 v.69 pp. 154-161
ISSN:
0043-1354
Subject:
Raman spectroscopy; adsorption; aeration; bacteria; bioactive properties; birnessite; coatings; electron paramagnetic resonance spectroscopy; filters; filtration; groundwater; manganese; manganese oxides; oxidation; ripening; sand; scanning electron microscopy
Abstract:
... The efficiency of manganese removal in conventional groundwater treatment consisting of aeration followed by rapid sand filtration, strongly depends on the ability of filter media to promote auto-catalytic adsorption of dissolved manganese and its subsequent oxidation. Earlier studies have shown that the compound responsible for the auto-catalytic activity in ripened filters is a manganese oxide c ...
DOI:
10.1016/j.watres.2014.11.019

24. Biological oxidation of Mn(II) coupled with nitrification for removal and recovery of minor metals by downflow hanging sponge reactor

Author:
Linh Thi Thuy Cao; Hiroya Kodera; Kenichi Abe; Hiroyuki Imachi; Yoshiteru Aoi; Tomonori Kindaichi; Noriatsu Ozaki; Akiyoshi Ohashi
Source:
Water research 2015 v.68 pp. 545-553
ISSN:
0043-1354
Subject:
Bacillus subtilis; ammonium compounds; bacteria; bioreactors; cobalt; genes; manganese; manganese oxides; nickel; nitrification; oxidation; ribosomal RNA; wastewater; wastewater treatment
Abstract:
... Biogenic manganese oxides (bio-MnO2) have been shown to absorb minor metals. Bioreactor cultivation of heterotrophic manganese oxidizing bacteria (MnOB), which produce bio-MnO2 via oxidation of Mn (II), can be expected to be involved in a promising system for removal and recovery of minor metals from wastewater. However, MnOB enrichment in wastewater treatment is difficult. This study investigated ...
DOI:
10.1016/j.watres.2014.10.002

25. Biological phosphorus removal from abattoir wastewater at very short sludge ages mediated by novel PAO clade Comamonadaceae

Author:
Huoqing Ge; Damien J. Batstone; Jürg Keller
Source:
Water research 2015 v.69 pp. 173-182
ISSN:
0043-1354
Subject:
4',6-diamidino-2-phenylindole; Comamonadaceae; bacteria; carbon; energy efficiency; fluorescence in situ hybridization; phosphates; phosphorus; slaughterhouses; sludge; staining; wastewater; wastewater treatment
Abstract:
... Recent increases in global phosphorus costs, together with the need to remove phosphorus from wastewater to comply with water discharge regulations, make phosphorus recovery from wastewater economically and environmentally attractive. Biological phosphorus (Bio-P) removal process can effectively capture the phosphorus from wastewater and concentrate it in a form that is easily amendable for recove ...
DOI:
10.1016/j.watres.2014.11.026

26. Biological plausibility as a tool to associate analytical data for micropollutants and effect potentials in wastewater, surface water, and sediments with effects in fishes

Author:
Diana Maier; Ludek Blaha; John P. Giesy; Anja Henneberg; Heinz-R. Köhler; Bertram Kuch; Raphaela Osterauer; Katharina Peschke; Doreen Richter; Marco Scheurer; Rita Triebskorn
Source:
Water research 2015 v.72 pp. 127-144
ISSN:
0043-1354
Subject:
DNA; Danio rerio; Oncorhynchus mykiss; Salmo trutta; Squalius cephalus; bioassays; cages; chelating agents; drugs; effluents; embryotoxicity; enzymes; erythrocytes; feral animals; flame retardants; genotoxicity; heavy metals; humans; in vitro studies; pesticides; polybrominated diphenyl ethers; polychlorinated biphenyls; reporter genes; rivers; sediments; streams; surface water; tissues; trout; wastewater; wastewater treatment; Lake Constance
Abstract:
... Discharge of substances like pesticides, pharmaceuticals, flame retardants, and chelating agents in surface waters has increased over the last decades due to the rising numbers of chemicals used by humans and because many WWTPs do not eliminate these substances entirely. The study, results of which are presented here, focused on associations of (1) concentrations of micropollutants in wastewater t ...
DOI:
10.1016/j.watres.2014.08.050

27. Bioremediation of contaminated marine sediments can enhance metal mobility due to changes of bacterial diversity

Author:
Viviana Fonti; Francesca Beolchini; Laura Rocchetti; Antonio Dell'Anno
Source:
Water research 2015 v.68 pp. 637-650
ISSN:
0043-1354
Subject:
Desulfobacteraceae; Desulfobulbaceae; Flavobacteriaceae; acetates; arsenic; bioavailability; bioremediation; cadmium; environmental health; high-throughput nucleotide sequencing; lactose; lead; marine sediments; metabolism; microbial growth; nutrients; organic matter; sediment contamination; solubilization; sulfate-reducing bacteria; zinc
Abstract:
... Bioremediation strategies applied to contaminated marine sediments can induce important changes in the mobility and bioavailability of metals with potential detrimental consequences on ecosystem health. In this study we investigated changes of bacterial abundance and diversity (by a combination of molecular fingerprinting and next generation sequencing analyses) during biostimulation experiments c ...
DOI:
10.1016/j.watres.2014.10.035

28. Biosynthesis of high yield fatty acids from Chlorella vulgaris NIES-227 under nitrogen starvation stress during heterotrophic cultivation

Author:
Xiao-Fei Shen; Fei-Fei Chu; Paul K.S. Lam; Raymond J. Zeng
Source:
Water research 2015 v.81 pp. 294-300
ISSN:
0043-1354
Subject:
Chlorella vulgaris; biodiesel; biosynthesis; chemical oxygen demand; extrusion; fatty acid composition; fatty acid methyl esters; glucose; microalgae; nitrogen; oils; oleic acid; operating costs; phosphorus; repletion; soybeans; starvation; wastes
Abstract:
... In this study the heterotrophic cultivation of Chlorella vulgaris NIES-227 fed with glucose was investigated systematically using six media types; combinations of nitrogen repletion/depletion and phosphorus repletion/limitation/depletion. It was found that a high yield of fatty acids (0.88 of fed glucose-COD) and a high content of fatty acid methyl esters (FAMEs) (89% of dry weight) were obtained ...
DOI:
10.1016/j.watres.2015.06.003

29. Bisphenol diglycidyl ethers and bisphenol A and their hydrolysis in drinking water

Author:
R.F. Lane; C.D. Adams; S.J. Randtke; R.E. Carter
Source:
Water research 2015 v.72 pp. 331-339
ISSN:
0043-1354
Subject:
bisphenol A; buildings; coatings; drinking water; epoxides; estrogenic properties; ethers; half life; hospitals; humans; hydrolysis; ingestion; leachates; liquid chromatography; mass spectrometry; models; pH; pipes; surface water; tanks
Abstract:
... Epoxy coatings are commonly used to protect the interior (and exterior) surfaces of water mains and storage tanks and can be used on the interior surfaces of water pipes in homes, hospitals, hotels, and other buildings. Common major components of epoxies include bisphenols, such as bisphenol A (BPA) or bisphenol F (BPF), and their reactive prepolymers, bisphenol A diglycidyl ether (BADGE) and bisp ...
DOI:
10.1016/j.watres.2014.09.043

30. CO2-neutral wastewater treatment plants or robust, climate-friendly wastewater management? A systems perspective

Author:
Tove A. Larsen
Source:
Water research 2015 v.87 pp. 513-521
ISSN:
0043-1354
Subject:
anaerobic ammonium oxidation; carbon dioxide; chemical oxygen demand; climate; electricity; energy efficiency; energy resources; greenhouse gas emissions; heat; methane; nitrous oxide; nutrients; sludge; temperature; urine; wastewater; wastewater treatment
Abstract:
... CO2-neutral wastewater treatment plants can be obtained by improving the recovery of internal wastewater energy resources (COD, nutrients, energy) and reducing energy demand as well as direct emissions of the greenhouse gases N2O and CH4. Climate-friendly wastewater management also includes the management of the heat resource, which is most efficiently recovered at the household level, and robust ...
DOI:
10.1016/j.watres.2015.06.006

31. Calcium effect on the metabolic pathway of phosphorus accumulating organisms in enhanced biological phosphorus removal systems

Author:
Hai-Ling Zhang; Guo-Ping Sheng; Wei Fang; Yong-Peng Wang; Cai-Yun Fang; Li-Min Shao; Han-Qing Yu
Source:
Water research 2015 v.84 pp. 171-180
ISSN:
0043-1354
Subject:
acetates; biochemical pathways; calcium; calcium phosphates; glycogen; metabolism; phosphorus
Abstract:
... Phosphorus accumulating organisms (PAOs) have been found to act as glycogen-accumulating organisms (GAOs) under certain conditions, thus, the deterioration in the performance of enhanced biological phosphorus removal systems is not always attributed to the proliferation of GAOs. In this work, the effects of calcium on the metabolic pathway of PAOs were explored. It was found that when the influent ...
DOI:
10.1016/j.watres.2015.07.042

32. Characterisation of algal organic matter produced by bloom-forming marine and freshwater algae

Author:
L.O. Villacorte; Y. Ekowati; T.R. Neu; J.M. Kleijn; H. Winters; G. Amy; J.C. Schippers; M.D. Kennedy
Source:
Water research 2015 v.73 pp. 216-230
ISSN:
0043-1354
Subject:
Alexandrium; Chaetoceros; Fourier transform infrared spectroscopy; Microcystis; adhesion; algae; algal blooms; atomic force microscopy; biopolymers; carbon; cohesion; fluorescence emission spectroscopy; fouling; freshwater; fucose; lectins; liquid chromatography; molecular weight; monitoring; nanofiltration; organic matter; polysaccharides; reverse osmosis; staining; stickiness; water treatment
Abstract:
... Algal blooms can seriously affect the operation of water treatment processes including low pressure (micro- and ultra-filtration) and high pressure (nanofiltration and reverse osmosis) membranes mainly due to accumulation of algal-derived organic matter (AOM). In this study, the different components of AOM extracted from three common species of bloom-forming algae (Alexandrium tamarense, Chaetocer ...
DOI:
10.1016/j.watres.2015.01.028

33. Characteristics of pollutant gas releases from swine, dairy, beef, and layer manure, and municipal wastewater

Author:
Xiao-Rong Dai; Chayan Kumer Saha; Ji-Qin Ni; Albert J. Heber; Victoria Blanes-Vidal; James L. Dunn
Source:
Water research 2015 v.76 pp. 110-119
ISSN:
0043-1354
Subject:
ammonia; ammonium nitrogen; beef; carbon dioxide; dairy manure; environmental law; gases; headspace analysis; hydrogen sulfide; laying hens; municipal wastewater; pH; pollutants; poultry manure; storage conditions; sulfur dioxide; swine
Abstract:
... Knowledge about characteristics of gas releases from various types of organic wastes can assist in developing gas pollution reduction technologies and establishing environmental regulations. Five different organic wastes, i.e., four types of animal manure (swine, beef, dairy, and layer hen) and municipal wastewater, were studied for their characteristics of ammonia (NH3), carbon dioxide (CO2), hyd ...
DOI:
10.1016/j.watres.2015.02.050

34. Characterization of microflora and transformation of organic matters in urban sewer system

Author:
Pengkang Jin; Bin Wang; Ding Jiao; Guangxi Sun; Baobao Wang; Xiaochang C. Wang
Source:
Water research 2015 v.84 pp. 112-119
ISSN:
0043-1354
Subject:
acetic acid; bacteria; biochemical oxygen demand; biodegradability; biofilm; carbon dioxide; chemical oxygen demand; ethanol; fermentation; gravity; hydrogen; lactic acid; methane; microbial growth; molecular weight; organic matter; oxygen; sewage; volatile fatty acids; wastewater
Abstract:
... A study was conducted using a pilot sewer system consisting of 35 sequential sections, totalling 1200 m of gravity pipe. Urban sewage flowed into the sewer system at a constant flow rate until it reached physical and microbiological steady states. Microflora in the biofilm that attached to the inner surface along the pipe length were analysed. The organic compositions in both the liquid and gaseou ...
DOI:
10.1016/j.watres.2015.07.008

35. Characterization of nutrient removal and microalgal biomass production on an industrial waste-stream by application of the deceleration-stat technique

Author:
Jon Van Wagenen; Mathias Leon Pape; Irini Angelidaki
Source:
Water research 2015 v.75 pp. 301-311
ISSN:
0043-1354
Subject:
Chlorella sorokiniana; algae culture; ammonia; biomass production; biotechnology; culture media; light intensity; microalgae; nitrogen; phosphates; phosphorus; photons; wastewater
Abstract:
... Industrial wastewaters can serve as a nutrient and water source for microalgal production. In this study the effluent of an internal circulation (IC) reactor anaerobically treating the wastes of a biotechnology production facility were chosen as the cultivation medium for Chlorella sorokiniana in batch and continuous cultures. The aim was to evaluate the rates of nutrient removal and biomass produ ...
DOI:
10.1016/j.watres.2015.02.022

36. Characterization of the dissolved phosphorus uptake kinetics for the effluents from advanced nutrient removal processes

Author:
Bo Li; Michael T. Brett
Source:
Water research 2015 v.84 pp. 181-189
ISSN:
0043-1354
Subject:
algae; bioassays; bioavailability; effluents; eutrophication; mineralization; models; phosphorus; surface water; total maximum daily load; wastewater treatment; watersheds
Abstract:
... Given the importance of the watershed protection plans, direct determination of phosphorus (P) mineralization rates in advanced wastewater treatment facility effluents is crucial for developing the most protective strategies minimiz eutrophication in receiving surface waters. In this study, algal bioassays were used to determine the uptake rate of dissolved P in effluents from a broad range of adv ...
DOI:
10.1016/j.watres.2015.07.028

37. Characterization of the proton binding sites of extracellular polymeric substances in an anaerobic membrane bioreactor

Author:
Yi Liu; Sheng Chang; Fantahun M. Defersha
Source:
Water research 2015 v.78 pp. 133-143
ISSN:
0043-1354
Subject:
Fourier transform infrared spectroscopy; bacteria; binding sites; bioreactors; carbohydrates; chemical composition; filtration; fouling; linear programming; lipids; models; nucleic acids; osmotic pressure; phosphates; proteins; titration; wastewater
Abstract:
... This paper focuses on the characterization of the chemical compositions and acidic constants of the extracellular polymeric substances (EPSs) in an anaerobic membrane bioreactor treating synthetic brewery wastewater by using chemical analysis, linear programming analysis (LPA) of titration data, and FT-IR analysis. The linear programming analysis of titration data revealed that the EPSs have proto ...
DOI:
10.1016/j.watres.2015.04.007

38. Chronic effects of temperature and nitrate pollution on Daphnia magna: Is this cladoceran suitable for widespread use as a tertiary treatment?

Author:
Alberto Maceda-Veiga; Gordon Webster; Oriol Canals; Humbert Salvadó; Andrew J. Weightman; Jo Cable
Source:
Water research 2015 v.83 pp. 141-152
ISSN:
0043-1354
Subject:
Daphnia magna; bacteria; body size; community structure; cost effectiveness; disinfection; effluents; environmental factors; fecundity; grazing; long term effects; microbial communities; mortality; nitrates; organic matter; protists; sewage; temperature; turbidity; wastewater
Abstract:
... Effluent clarification and disinfection are major challenges in wastewater management. The cladoceran Daphnia magna has been proposed as a cost-effective and ecosystem-friendly option to clarify and disinfect secondary effluents, but its efficacy has not been fully tested under different sewage conditions. The present study explores the effects of temperature and nitrate on the efficacy of D. magn ...
DOI:
10.1016/j.watres.2015.06.036

39. Chronic impact of tetracycline on nitrification kinetics and the activity of enriched nitrifying microbial culture

Author:
Tugce Katipoglu-Yazan; Christophe Merlin; Marie-Noëlle Pons; Emine Ubay-Cokgor; Derin Orhon
Source:
Water research 2015 v.72 pp. 227-238
ISSN:
0043-1354
Subject:
activated sludge; ammonia; biomass; chemical oxygen demand; equations; exposure duration; genes; growth models; messenger RNA; microbial communities; microbial culture; monitoring; nitrification; nitrifying bacteria; nitrogen; oxygen; peptones; ribosomal RNA; tetracycline
Abstract:
... This study evaluated the chronic impact of tetracycline on biomass with enriched nitrifying community sustained in a lab-scale activated sludge system. For this purpose, a fill and draw reactor fed with 100 mg COD/L of peptone mixture and 50 mg N/L of ammonia was sustained at a sludge age of 15 days. At steady-state, the reactor operation was continued with a daily tetracycline dosing of 50 mg/L f ...
DOI:
10.1016/j.watres.2014.12.041

40. Co-digestion of municipal sludge and external organic wastes for enhanced biogas production under realistic plant constraints

Author:
Madan Tandukar; Spyros G. Pavlostathis
Source:
Water research 2015 v.87 pp. 432-445
ISSN:
0043-1354
Subject:
activated sludge; air; anaerobic digestion; biogas; carbon dioxide; chemical oxygen demand; chewing gum; cost effectiveness; digestibility; energy; greenhouse gas emissions; heat; manufacturing; methane; methane production; mixing; municipal wastewater; organic wastes; wastewater treatment; water resources; Georgia
Abstract:
... A bench-scale investigation was conducted to select external organic wastes and mixing ratios for co-digestion with municipal sludge at the F. Wayne Hill Water Resources Center (FWHWRC), Gwinnett County, GA, USA to support a combined heat and power (CHP) project. External wastes were chosen and used subject to two constraints: a) digester retention time no lower than 15 d; and b) total biogas (met ...
DOI:
10.1016/j.watres.2015.04.031

41. Comparative decay of Catellicoccus marimmalium and enterococci in beach sand and seawater

Author:
Kendra I. Brown; Alexandria B. Boehm
Source:
Water research 2015 v.83 pp. 377-384
ISSN:
0043-1354
Subject:
Enterococcus; fate and transport models; indicator species; pollutants; sand; seawater
Abstract:
... Most studies characterize microbial source tracking (MST) target performance using sensitivity and specificity metrics. However, it is important to also consider the temporal stability of MST targets in relation to regulated microbial pollutants. Differences among bacterial target stabilities may lead to erroneous conclusions about sources of contamination. The present study evaluates the relative ...
DOI:
10.1016/j.watres.2015.06.055

42. Comparative evaluation of multiple methods to quantify and characterise granular anammox biomass

Author:
Podmirseg Sabine Marie; Thomas Pümpel; Rudolf Markt; Sudhir Murthy; Charles Bott; Bernhard Wett
Source:
Water research 2015 v.68 pp. 194-205
ISSN:
0043-1354
Subject:
anaerobic ammonium oxidation; anaerobic digestion; assets; biomass; correlation; granules; heme; image analysis; monitoring; quantitative polymerase chain reaction; sludge; wastewater; wastewater treatment; Austria
Abstract:
... Six methodologically different approaches were evaluated and compared regarding their suitability to quantify and characterise granular anammox biomass. The investigated techniques were gravimetric analysis (GA), activity measurements (AM), Coulter counter analysis (CC), quantitative PCR (qPCR), heme protein quantification (HQ) and the novel image analysis technique Particle Tracking (PT). The foc ...
DOI:
10.1016/j.watres.2014.10.005

43. Comparing the inhibitory thresholds of dairy manure co-digesters after prolonged acclimation periods: Part 2 – correlations between microbiomes and environment

Author:
Leticia Regueiro; Catherine M. Spirito; Joseph G. Usack; Denina Hospodsky; Jeffrey J. Werner; Largus T. Angenent
Source:
Water research 2015 v.87 pp. 458-466
ISSN:
0043-1354
Subject:
Syntrophomonadaceae; acclimation; ammonia; anaerobic digesters; anaerobic digestion; biomass; dairy manure; environmental factors; food waste; glycerol; hydrolysates; long chain fatty acids; microbiome; mixing; potassium; ribosomal RNA; sequence analysis; volatile fatty acids
Abstract:
... Here, we studied the microbiome succession and time-scale variability of four mesophilic anaerobic reactors in a co-digestion study with the objective to find links between changing environmental conditions and the microbiome composition. The changing environmental conditions were ensured by gradual increases in loading rates and mixing ratios of three co-substrates with a constant manure-feeding ...
DOI:
10.1016/j.watres.2015.05.046

44. Comparison of different chelating agents to enhance reductive Cr(VI) removal by pyrite treatment procedure

Author:
Cetin Kantar; Cihan Ari; Selda Keskin
Source:
Water research 2015 v.76 pp. 66-75
ISSN:
0043-1354
Subject:
EDTA (chelating agent); active sites; chelating agents; chromium; citrates; iron; ligands; oxalates; oxidation; pH; pyrite; wastewater treatment
Abstract:
... New technologies involving in-situ chemical hexavalent chromium [Cr(VI)] reduction to trivalent chromium [Cr(III)] with natural Fe(II)-containing minerals can offer viable solutions to the treatment of wastewater and subsurface systems contaminated with Cr(VI). Here, the effects of five different chelating agents including citrate, EDTA, oxalate, tartrate and salicylate on reductive Cr(VI) removal ...
DOI:
10.1016/j.watres.2015.02.058

45. Comparison of endogenous metabolism during long-term anaerobic starvation of nitrite/nitrate cultivated denitrifying phosphorus removal sludges

Author:
Yayi Wang; Shuai Zhou; Hong Wang; Liu Ye; Jian Qin; Ximao Lin
Source:
Water research 2015 v.68 pp. 374-386
ISSN:
0043-1354
Subject:
acids; adenosine triphosphate; biomass; carbon; denitrification; energy; glycogen; metabolism; nitrates; nitrites; phosphorus; polymers; sludge; starvation; toxic substances
Abstract:
... Denitrifying phosphorus removal (DPR) by denitrifying phosphorus-accumulating organisms (DPAOs) is a promising approach for reducing energy and carbon usage. However, influent fluctuations or interruptions frequently expose the DPAOs biomass to starvation conditions, reducing biomass activity and amount, and ultimately degrading the performance of DPR. Therefore, a better understanding of the endo ...
DOI:
10.1016/j.watres.2014.09.044

46. Comparison of export dynamics of nutrients and animal-borne estrogens from a tile-drained Midwestern agroecosystem

Author:
Heather E. Gall; Stephen A. Sassman; Byron Jenkinson; Linda S. Lee; Chad T. Jafvert
Source:
Water research 2015 v.72 pp. 162-173
ISSN:
0043-1354
Subject:
agroecosystems; animal wastes; best management practices; concentrated animal feeding operations; estradiol; estriol; estrone; farms; nitrates; nitrites; nitrogen; nutrients; phosphorus; surface water; temporal variation; tile drainage; Indiana
Abstract:
... Concentrated animal feeding operations (CAFOs) are known to be a source of nutrients and hormones found in surface water bodies around the world. While the fate and transport of nutrients have been studied for decades, much less research has been conducted on the fate and transport of hormones. To facilitate a comparison of nutrient and hormone export dynamics from farm fields, nitrate + nitrite ( ...
DOI:
10.1016/j.watres.2014.08.041

47. Comparison of organic peracids in wastewater treatment: Disinfection, oxidation and corrosion

Author:
Tero Luukkonen; Tom Heyninck; Jaakko Rämö; Ulla Lassi
Source:
Water research 2015 v.85 pp. 275-285
ISSN:
0043-1354
Subject:
Enterococcus; Escherichia coli; acids; anti-infective properties; bisphenol A; byproducts; carbon; copper; corrosion; disinfectants; disinfection; hydrogen peroxide; iron; models; oxidation; pH; stainless steel; wastewater; wastewater treatment
Abstract:
... The use of organic peracids in wastewater treatment is attracting increasing interest. The common beneficial features of peracids are effective anti-microbial properties, lack of harmful disinfection by-products and high oxidation power. In this study performic (PFA), peracetic (PAA) and perpropionic acids (PPA) were synthesized and compared in laboratory batch experiments for the inactivation of ...
DOI:
10.1016/j.watres.2015.08.037

48. Comprehensive study of the antidiabetic drug metformin and its transformation product guanylurea in Greek wastewaters

Author:
Christina I. Kosma; Dimitra A. Lambropoulou; Triantafyllos A. Albanis
Source:
Water research 2015 v.70 pp. 436-448
ISSN:
0043-1354
Subject:
activated sludge; analytical methods; anionic surfactants; aquatic environment; ecotoxicology; effluents; metformin; risk; risk assessment; spectrometers; surface water; wastewater; wastewater treatment; Greece
Abstract:
... Many pollutants such as pharmaceuticals and their transformation products (TPs) are not efficiently removed from wastewater treatment plants and enter into surface waters. The aim of this study was to investigate the occurrence and behavior of metformin, one of the most prescribed drugs worldwide, and its biological transformation product guanylurea, in eight wastewater treatment plants (WWTPs) of ...
DOI:
10.1016/j.watres.2014.12.010

49. Compressional rheology: A tool for understanding compressibility effects in sludge dewatering

Author:
Anthony D. Stickland
Source:
Water research 2015 v.82 pp. 37-46
ISSN:
0043-1354
Subject:
compressibility; dewatering; evaporation rate; filtration; flocculation; gels; rheology; sludge; wastewater treatment
Abstract:
... Water and wastewater treatment sludges exhibit compressible behaviour due to flocculation and aggregation. At a critical solids concentration called the gel point, which is as low as 1–2 v/v%, a continuous interconnected network of particles is formed that can resist an applied load. The applied load (mechanical filtration pressure or buoyancy in settling for example) must exceed the network stren ...
DOI:
10.1016/j.watres.2015.04.004

50. Concerning the role of cell lysis-cryptic growth in anaerobic side-stream reactors: The single-cell analysis of viable, dead and lysed bacteria

Author:
P. Foladori; V.F. Velho; R.H.R. Costa; L. Bruni; A. Quaranta; G. Andreottola
Source:
Water research 2015 v.74 pp. 132-142
ISSN:
0043-1354
Subject:
aerobic conditions; aerobiosis; ambient temperature; ammonium compounds; anaerobic conditions; anaerobiosis; bacteria; biodegradability; chemical oxygen demand; death; enzyme activity; flow cytometry; hydrolysis; organic matter; oxidation; sludge; solubilization; viability
Abstract:
... In the Anaerobic Side-Stream Reactor (ASSR), part of the return sludge undergoes alternating aerobic and anaerobic conditions with the aim of reducing sludge production. In this paper, viability, enzymatic activity, death and lysis of bacterial cells exposed to aerobic and anaerobic conditions for 16 d were investigated at single-cell level by flow cytometry, with the objective of contributing to ...
DOI:
10.1016/j.watres.2015.01.042