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1. Electrochemical oxidation of table olive processing wastewater over boron-doped diamond electrodes: Treatment optimization by factorial design

Author:
Deligiorgis, A.; Xekoukoulotakis, N.P.; Diamadopoulos, E.; Mantzavinos, D.
Source:
Water research 2008 v.42 no.4-5 pp. 1229-1237
ISSN:
0043-1354
Subject:
temporal variation; effluents; mineralization; reaction kinetics; organic matter; decolorization; food processing wastes; wastewater treatment; boron; electrodes; olives; electrochemistry; oxidants; pH; oxidation; chemical oxygen demand; wastewater; chemical degradation; phenolic compounds
DOI:
10.1016/j.watres.2007.09.014

2. Degradation of paracetamol in aqueous solutions by TiO2 photocatalysis

Author:
Yang, L.; Yu, L.E.; Ray, M.B.
Source:
Water research 2008 v.42 no.13 pp. 3480-3488
ISSN:
0043-1354
Subject:
analgesics; drug residues; aqueous solutions; wastewater treatment; photolysis; titanium dioxide; ultraviolet radiation; irradiation; organic compounds; mineralization; temporal variation; chemical concentration; light intensity; oxygen; pH; reaction kinetics; equations; wastewater
DOI:
10.1016/j.watres.2008.04.023
PubMed:
18519147

3. Removal of pharmaceuticals and kinetics of mineralization by O3/H2O2 in a biotreated municipal wastewater

Author:
Rosal, R.; Rodríguez, A.; Perdigón-Melón, J.A.; Mezcua, M.; Hernando, M.D.; Letón, P.; García-Calvo, E.; Agüera, A.; Fernández-Alba, A.R.
Source:
Water research 2008 v.42 no.14 pp. 3719-3728
ISSN:
0043-1354
Subject:
temporal variation; effluents; mineralization; simulation models; reaction kinetics; free radicals; ozonation; hydrogen peroxide; drug residues; wastewater treatment; organic compounds; ozone; chemical degradation; water; dissolved organic carbon; wastewater; metabolites
DOI:
10.1016/j.watres.2008.06.008
PubMed:
18657843

4. Wet air oxidation of table olive processing wastewater: Determination of key operating parameters by factorial design

Author:
Katsoni, Athanasia; Frontistis, Zaharias; Xekoukoulotakis, Nikolaos P.; Diamadopoulos, Evan; Mantzavinos, Dionissios
Source:
Water research 2008 v.42 no.14 pp. 3591-3600
ISSN:
0043-1354
Subject:
wastewater; food processing wastes; olives; oxidation; effluents; oxygen; hydrogen peroxide; pH; chemical oxygen demand; temperature; phenolic compounds; mineralization
DOI:
10.1016/j.watres.2008.05.007

5. Low-temperature (7 °C) anaerobic treatment of a trichloroethylene-contaminated wastewater: Microbial community development

Author:
Siggins, Alma; Enright, Anne-Marie; O’Flaherty, Vincent
Source:
Water research 2011 v.45 no.13 pp. 4035-4046
ISSN:
0043-1354
Subject:
Methanosaeta; acetates; anaerobic digestion; bacterial communities; biogas; biomass; bioreactors; chemical oxygen demand; community development; denaturing gradient gel electrophoresis; genes; methane; methane production; methanogens; mineralization; quantitative polymerase chain reaction; ribosomal RNA; sludge; temperature; toxicity; trichloroethylene; volatile fatty acids; wastewater; water pollution
Abstract:
... The feasibility of low-temperature (7 °C) anaerobic digestion for the treatment of a trichloroethylene (TCE) contaminated wastewater was investigated. Two expanded granular sludge bed (EGSB) bioreactors (R1 and R2) were employed for the mineralisation of a synthetic volatile fatty acid based wastewater at an initial organic loading rate (OLR) of 3 kg COD m⁻³ d⁻¹, and an operating temperature of 15 ...
DOI:
10.1016/j.watres.2011.05.013

6. Strategies for lipids and phenolics degradation in the anaerobic treatment of olive mill wastewater

Author:
Gonçalves, M.R.; Costa, J.C.; Marques, I.P.; Alves, M.M.
Source:
Water research 2012 v.46 no.6 pp. 1684-1692
ISSN:
0043-1354
Subject:
anaerobic digestion; biogas; biomass; effluents; methane; mineralization; nitrogen; oleic acid; olives; oxidation; phenolic compounds; sludge; wastewater
Abstract:
... Strategies are proposed for the anaerobic treatment of lipid and phenolic-rich effluents, specifically the raw olive mill wastewater (OMW). Two reactors were operated under OMW influent concentrations from 5 to 48gCODL⁻¹ and Hydraulic Retention Time between 10 and 5 days. An intermittent feeding was applied whenever the reactors showed a severe decay in the methane yield. This strategy improved th ...
DOI:
10.1016/j.watres.2011.12.046
PubMed:
22244970

7. Mineralization of flumequine in acidic medium by electro-Fenton and photoelectro-Fenton processes

Author:
Garcia-Segura, Sergi; Garrido, José A.; Rodríguez, Rosa M.; Cabot, Pere L.; Centellas, Francesc; Arias, Conchita; Brillas, Enric
Source:
Water research 2012 v.46 no.7 pp. 2067-2076
ISSN:
0043-1354
Subject:
high performance liquid chromatography; carbon; hydrogen peroxide; iron; electrodes; electrochemistry; oxidation; mineralization; photolysis; byproducts; oxidants; solubility; carboxylic acids; inorganic ions; flumequine; hydroxyl radicals; pH; color; anti-infective agents; wastewater; fluorine
Abstract:
... The mineralization of flumequine, an antimicrobial agent belonging to the first generation of synthetic fluoroquinolones which is detected in natural waters, has been studied by electrochemical advanced oxidation processes (EAOPs) like electro-Fenton (EF) and photoelectro-Fenton (PEF) with UVA light. The experiments were performed in a cell containing a boron-doped diamond (BDD) anode and an air-d ...
DOI:
10.1016/j.watres.2012.01.019
PubMed:
22348999

8. Evaluating the utility of ¹⁵N and ¹⁸O isotope abundance analyses to identify nitrate sources: A soil zone study

Author:
Minet, E.; Coxon, C.E.; Goodhue, R.; Richards, K.G.; Kalin, R.M.; Meier-Augenstein, W.
Source:
Water research 2012 v.46 no.12 pp. 3723-3736
ISSN:
0043-1354
Subject:
bacteria; correlation; cows; denitrification; fertilizer rates; grasslands; groundwater; leaching; mineralization; nitrate fertilizers; nitrates; nitrification; organic wastes; slurries; stable isotopes; tillage; wastewater
Abstract:
... ¹⁵N and ¹⁸O isotope abundance analyses in nitrate (NO₃ ⁻) (expressed as δ¹⁵N-NO₃ ⁻ and δ¹⁸O-NO₃ ⁻ values respectively) have often been used in research to help identify NO₃ ⁻ sources in rural groundwater. However, questions have been raised over the limitations as overlaps in δ values may occur between N source types early in the leaching process. The aim of this study was to evaluate the utility ...
DOI:
10.1016/j.watres.2012.03.004

9. Electrochemical mineralization of anaerobically digested olive mill wastewater

Author:
Gonçalves, M.R.; Marques, I.P.; Correia, J.P.
Source:
Water research 2012 v.46 no.13 pp. 4217-4225
ISSN:
0043-1354
Subject:
anaerobic conditions; anaerobic digestion; chemical oxygen demand; color; decolorization; electrochemistry; electrodes; electrolysis; electrolytes; mineralization; nitrogen; olives; oxidation; phenols; sewer systems; wastewater
Abstract:
... A novel approach was developed for the energetic valorisation and treatment of olive mill wastewater (OMW), combining anaerobic digestion and electrochemical oxidation. The electrochemical treatment was proposed as the final step to mineralize the remaining OMW fraction from the anaerobic reactor. The electrooxidation of anaerobically digested OMW was investigated over dimensionally stable anodes ...
DOI:
10.1016/j.watres.2012.05.019
PubMed:
22687524

10. Biodegradability enhancement of a pesticide-containing bio-treated wastewater using a solar photo-Fenton treatment step followed by a biological oxidation process

Author:
Vilar, Vítor J.P.; Moreira, Francisca C.; Ferreira, Ana C.C.; Sousa, M.A.; Gonçalves, C.; Alpendurada, M.F.; Boaventura, Rui A.R.
Source:
Water research 2012 v.46 no.15 pp. 4599-4613
ISSN:
0043-1354
Subject:
anions; biodegradability; carbon; chemical oxygen demand; containers; decontamination; detection limit; energy; hydrogen peroxide; inorganic ions; mineralization; oxidation; pesticides; phytochemicals; plastics; surface water; washing; wastewater
Abstract:
... This work proposes an efficient combined treatment for the decontamination of a pesticide-containing wastewater resulting from phytopharmaceutical plastic containers washing, presenting a moderate organic load (COD=1662–1960mgO₂L⁻¹; DOC=513–696mgCL⁻¹), with a high biodegradable organic carbon fraction (81%; BOD₅=1350–1600mgO₂L⁻¹) and a remaining recalcitrant organic carbon mainly due to pesticides ...
DOI:
10.1016/j.watres.2012.06.038
PubMed:
22796005

11. Kinetic modeling and synergy quantification in sono and photooxidative treatment of simulated dyehouse effluent

Author:
Grčić, Ivana; Papić, Sanja; Koprivanac, Natalija; Kovačić, Iva
Source:
Water research 2012 v.46 no.17 pp. 5683-5695
ISSN:
0043-1354
Subject:
chlorides; decolorization; free radicals; irradiation; mathematical models; mineralization; oxidants; photooxidation; surfactants; ultraviolet radiation; wastewater
Abstract:
... The aim of this work was to explore the application of sulfate radical based advanced oxidation processes: photooxidation (UV/PMS/PS), sonooxidation (US/PMS/PS) and combined sono-photooxidation (US/UV/PMS/PS) for the mineralization of simulated dyehouse effluent (WW); using peroxymonosulfate (PMS) and persulfate (PS) as oxidants. Experiments were performed in a reaction vessel of a defined geometr ...
DOI:
10.1016/j.watres.2012.07.058
PubMed:
22921582

12. Suspended particle and pathogen peak discharge buffering by a surface-flow constructed wetland

Author:
Mulling, Bram T.M.; van den Boomen, Rob M.; van der Geest, Harm G.; Kappelhof, Joost W.N.M.; Admiraal, Wim
Source:
Water research 2013 v.47 pp. 1091-1100
ISSN:
0043-1354
Subject:
Enterococcus; Escherichia coli; biofilm; buffering capacity; carbon; constructed wetlands; mineralization; mixing; mortality; nitrogen; nutrients; organic matter; overland flow; oxygen; pathogens; phosphorus; pollution load; ponds; predation; sludge; temperature; turbidity; wastewater; wastewater treatment; water quality
Abstract:
... Constructed wetlands (CWs) have been shown to improve the water quality of treated wastewater. The capacity of CWs to reduce nutrients, pathogens and organic matter and restore oxygen regime under normal operating conditions cannot be extrapolated to periods of incidental peak discharges. The buffering capacity of CWs during peak discharges is potentially a key factor for water quality in the rece ...
DOI:
10.1016/j.watres.2012.11.032
PubMed:
23260174

13. Mineralization and defluoridation of 2,2,3,3-tetrafluoro -1-propanol (TFP) by UV oxidation in a novel three-phase fluidized bed reactor (3P-FBR)

Author:
Shih, Yu-Jen; Tsai, Meng-Tso; Huang, Yao-Hui
Source:
Water research 2013 v.47 pp. 2325-2330
ISSN:
0043-1354
Subject:
adsorbents; adsorption; aeration; fluidized beds; hydrogen peroxide; ions; iron oxides; irradiation; mineralization; oxidation; wastewater
Abstract:
... 2,2,3,3-Tetrafluoro-1-propanol (TFP, C3H4F4O, M.W. = 132.06) is extensively used as the solvent in CD-R and DVD-R fabrication. Since it has a fluorinated alky-chain configuration and is non-biodegradable, its treatment by conventional oxidation methods is typically very inefficient. In this work, novel three-phase fluidized bed reactor (3P-FBR, 7.5 cm in diameter, 50 cm high) that combines photo o ...
DOI:
10.1016/j.watres.2013.02.007
PubMed:
23453590

14. Urban net-zero water treatment and mineralization: Experiments, modeling and design

Author:
Englehardt, James D.; Wu, Tingting; Tchobanoglous, George
Source:
Water research 2013 v.47 pp. 4680-4691
ISSN:
0043-1354
Subject:
aeration; ambient temperature; bioreactors; buildings; chemical oxygen demand; denitrification; disinfection; drinking water; drugs; economics; ecosystems; energy; half life; hydrogen peroxide; laboratory techniques; mineral content; mineralization; minerals; models; nitrogen; oxidation; pH; pesticides; rain; sludge; toxicity; ultrafiltration; wastewater; wastewater treatment; United States
Abstract:
... Water and wastewater treatment and conveyance account for approximately 4% of US electric consumption, with 80% used for conveyance. Net zero water (NZW) buildings would alleviate demands for a portion of this energy, for water, and for the treatment of drinking water for pesticides and toxic chemical releases in source water. However, domestic wastewater contains nitrogen loads much greater than ...
DOI:
10.1016/j.watres.2013.05.026
PubMed:
23770482

15. A novel approach to realize SANI process in freshwater sewage treatment – Use of wet flue gas desulfurization waste streams as sulfur source

Author:
Jiang, Feng; Zhang, Liang; Peng, Guo-Liang; Liang, Si-Yun; Qian, Jin; Wei, Li; Chen, Guang-Hao
Source:
Water research 2013 v.47 pp. 5773-5782
ISSN:
0043-1354
Subject:
Lactococcus; activated sludge; ammonia; antibacterial properties; bioreactors; carbon; chemical oxygen demand; cities; cold; denitrification; filters; freshwater; mineralization; nitrates; nitrification; seawater; sewage; sewage treatment; sulfate-reducing bacteria; sulfur; wastewater; water temperature
Abstract:
... SANI (Sulfate reduction, Autotrophic denitrification and Nitrification Integrated) process has been approved to be a sludge-minimized sewage treatment process in warm and coastal cities with seawater supply. In order to apply this sulfur-based process in inland cold areas, wet flue gas desulfurization (FGD) can be simplified and integrated with SANI process, to provide sulfite as electron carrier ...
DOI:
10.1016/j.watres.2013.06.051
PubMed:
23886546

16. Electro-peroxone treatment of Orange II dye wastewater

Author:
Bakheet, Belal; Yuan, Shi; Li, Zhaoxin; Wang, Huijiao; Zuo, Jiane; Komarneni, Sridhar; Wang, Yujue
Source:
Water research 2013 v.47 pp. 6234-6243
ISSN:
0043-1354
Subject:
azo dyes; carbon; decolorization; electrodes; electrolysis; hydrogen peroxide; mineralization; oxygen; ozonation; ozone; pH; pollutants; wastewater; wastewater treatment
Abstract:
... Degradation of a synthetic azo dye, Orange II, by electro-peroxone (E-peroxone) treatment was investigated. During the E-peroxone process, ozone generator effluent (O2 and O3 gas mixture) was continuously sparged into an electrolysis reactor, which was equipped with a carbon-polytetrafluorethylene (carbon-PTFE) cathode to electrochemically convert the sparged O2 to H2O2. The in-situ generated H2O2 ...
DOI:
10.1016/j.watres.2013.07.042
PubMed:
23973257

17. Electrochemical treatment of iopromide under conditions of reverse osmosis concentrates – Elucidation of the degradation pathway

Author:
Lütke Eversloh, C.; Henning, N.; Schulz, M.; Ternes, T.A.
Source:
Water research 2014 v.48 pp. 237-246
ISSN:
0043-1354
Subject:
X-radiation; boron; byproducts; electrochemistry; electrodes; electrolysis; iodates; iodides; iodine; mass spectrometry; mineralization; oxidants; oxidation; platinum; reverse osmosis; surface water; toxicity; wastewater
Abstract:
... Application of reverse osmosis for the reuse of treated wastewater on the one hand offers a way to provide high quality effluent waters. On the other hand reverse osmosis concentrates exhibiting highly concentrated contaminants are produced simultaneously. Electrochemical treatment of those concentrates is regarded as one possible answer to the problem of their disposal into surface waters. Nevert ...
DOI:
10.1016/j.watres.2013.09.035

18. Degradation and transformation products of acetaminophen in soil

Author:
Li, Juying; Ye, Qingfu; Gan, Jay
Source:
Water research 2014 v.49 pp. 44-52
ISSN:
0043-1354
Subject:
acetaminophen; bioactive properties; biosolids; food plants; groundwater; hydroquinone; leaching; medicine; mineralization; risk; runoff; soil; wastewater
Abstract:
... Acetaminophen is the most widely used human medicine. Trace levels of acetaminophen are frequently detected in treated wastewater and the impacted surface or groundwater resources. However, even though soil is a primary receiving compartment, the fate of acetaminophen in soil is poorly known, including in particular the potential for the formation of incomplete degradation products that may have a ...
DOI:
10.1016/j.watres.2013.11.008

19. Boron removal by electrocoagulation and recovery

Author:
Isa, Mohamed Hasnain; Ezechi, Ezerie Henry; Ahmed, Zubair; Magram, Saleh Faraj; Kutty, Shamsul Rahman Mohamed
Source:
Water research 2014 v.51 pp. 113-123
ISSN:
0043-1354
Subject:
Gibbs free energy; adsorption; boron; experimental design; inyoite; kinetics; mineralization; models; pH; response surface methodology; wastewater
Abstract:
... This work investigated the removal of boron from wastewater and its recovery by electrocoagulation and hydrothermal mineralization methods respectively. The experimental design was developed using Box-Behnken Model. An initial study was performed based on four preselected variables (pH, current density, concentration and time) using synthetic wastewater. Response surface methodology (RSM) was used ...
DOI:
10.1016/j.watres.2013.12.024

20. Influence of temperature and pretreatments on the anaerobic digestion of wastewater grown microalgae in a laboratory-scale accumulating-volume reactor

Author:
Kinnunen, Viljami; Craggs, Rupert; Rintala, Jukka
Source:
Water research 2014 v.57 pp. 247-257
ISSN:
0043-1354
Subject:
ambient temperature; anaerobic digesters; anaerobic digestion; biomass; digestion; hydrolysis; methane; methane production; microalgae; mineralization; nitrogen; phosphorus; wastewater
Abstract:
... This laboratory-scale study investigated the performance of a low-cost anaerobic digester for microalgae. Low (∼2%) solids content wastewater-grown microalgal biomass (MB) was digested in an unmixed, accumulating-volume reactor (AVR) with solid and liquid separation that enabled a long solids retention time. AVRs (2 or 20 L) were operated at 20 °C, 37 °C or ambient temperature (8–21 °C), and the i ...
DOI:
10.1016/j.watres.2014.03.043

21. Degradation of tyrosol by a novel electro-Fenton process using pyrite as heterogeneous source of iron catalyst

Author:
Ammar, Salah; Oturan, Mehmet A.; Labiadh, Lazhar; Guersalli, Amor; Abdelhedi, Ridha; Oturan, Nihal; Brillas, Enric
Source:
Water research 2015 v.74 pp. 77-87
ISSN:
0043-1354
Subject:
4-hydroxybenzoic acid; aqueous solutions; benzoquinones; catalysts; catechol; electrodes; gas chromatography-mass spectrometry; hydrogen peroxide; hydroxyl radicals; hydroxylation; iron; mineralization; olive oil mills; oxalic acid; oxidation; pH; pyrite; reversed-phase high performance liquid chromatography; specific energy; wastewater
Abstract:
... Tyrosol (TY) is one of the most abundant phenolic components of olive oil mill wastewaters. Here, the degradation of synthetic aqueous solutions of 0.30 mM TY was studied by a novel heterogeneous electro-Fenton (EF) process, so-called EF-pyrite, in which pyrite powder was the source of Fe2+ catalyst instead of a soluble iron salt used in classical EF. Experiments were performed with a cell equippe ...
DOI:
10.1016/j.watres.2015.02.006

22. Photocatalytic degradation of methamphetamine by UV/TiO2 – Kinetics, intermediates, and products

Author:
Kuo, Chin-Sheng; Lin, Cheng-Fang; Hong, Pui-Kwan Andy
Source:
Water research 2015 v.74 pp. 1-9
ISSN:
0043-1354
Subject:
ammonium compounds; disinfection; drugs; effluents; hydroxylation; lighting; mineralization; nitrates; nitrogen; pH; photocatalysis; sewage treatment; substance abuse; surface water; titanium dioxide; ultraviolet radiation; wastewater; wastewater treatment
Abstract:
... Methamphetamine (MAT) is a prescription drug and often a substance of abuse. It is found in WWTP influents and effluents as well as surface waters in many regions, elevating concerns about their potential impact. MAT is not effectively removed by conventional processes of domestic wastewater treatment plants (WWTPs). To contemplate advanced treatment, this study evaluates the feasibility of elimin ...
DOI:
10.1016/j.watres.2015.01.043

23. Dewatering in biological wastewater treatment: A review

Author:
Christensen, Morten Lykkegaard; Keiding, Kristian; Nielsen, Per Halkjær; Jørgensen, Mads Koustrup
Source:
Water research 2015 v.82 pp. 14-24
ISSN:
0043-1354
Subject:
activated sludge; anaerobic conditions; bioenergy; biofilm; calcium; centrifuges; dewatering; filters; filtration; granules; industry; ions; microbial biomass; mineralization; mixing; nitrogen; pH; phosphorus; pipes; saltwater intrusion; sodium; wastewater; wastewater treatment
Abstract:
... Biological wastewater treatment removes organic materials, nitrogen, and phosphorus from wastewater using microbial biomass (activated sludge, biofilm, granules) which is separated from the liquid in a clarifier or by a membrane. Part of this biomass (excess sludge) is transported to digesters for bioenergy production and then dewatered, it is dewatered directly, often by using belt filters or dec ...
DOI:
10.1016/j.watres.2015.04.019

24. Fast mineralization and detoxification of amoxicillin and diclofenac by photocatalytic ozonation and application to an urban wastewater

Author:
Moreira, Nuno F.F.; Orge, Carla A.; Ribeiro, Ana R.; Faria, Joaquim L.; Nunes, Olga C.; Pereira, M. Fernando R.; Silva, Adrián M.T.
Source:
Water research 2015 v.87 pp. 87-96
ISSN:
0043-1354
Subject:
Escherichia coli; Staphylococcus aureus; amoxicillin; aqueous solutions; carbon; diclofenac; drugs; growth retardation; hormones; microorganisms; mineralization; oxidation; ozonation; ozone; pesticides; photocatalysis; photolysis; pollutants; toxicity; vapors; wastewater
Abstract:
... The degradation of two organic pollutants (amoxicillin and diclofenac) in 0.1 mM aqueous solutions was studied by using advanced oxidation processes, namely ozonation, photolysis, photolytic ozonation, photocatalysis and photocatalytic ozonation. Diclofenac was degraded quickly under direct photolysis by artificial light (medium-pressure vapor arc, λexc > 300 nm), while amoxicillin remained very s ...
DOI:
10.1016/j.watres.2015.08.059

25. High-rate activated sludge system for carbon management – Evaluation of crucial process mechanisms and design parameters

Author:
Jimenez, Jose; Miller, Mark; Bott, Charles; Murthy, Sudhir; De Clippeleir, Haydee; Wett, Bernhard
Source:
Water research 2015 v.87 pp. 476-482
ISSN:
0043-1354
Subject:
activated sludge; biomass; carbon; chemical oxygen demand; dissolved oxygen; energy balance; mineralization; oxidation; polymers; processing technology; streams; wastewater
Abstract:
... The high-rate activated sludge (HRAS) process is a technology suitable for the removal and redirection of organics from wastewater to energy generating processes in an efficient manner. A HRAS pilot plant was operated under controlled conditions resulting in concentrating the influent particulate, colloidal, and soluble COD to a waste solids stream with minimal energy input by maximizing sludge pr ...
DOI:
10.1016/j.watres.2015.07.032

26. Formic acid enhanced effective degradation of methyl orange dye in aqueous solutions under UV–Vis irradiation

Author:
Wang, Jingjing; Bai, Renbi
Source:
Water research 2016 v.101 pp. 103-113
ISSN:
0043-1354
Subject:
aeration; air; ambient temperature; aqueous solutions; decolorization; formic acid; hydrogen peroxide; hydroxyl radicals; irradiation; methyl orange; mineralization; oxidation; pH; pollutants; wastewater
Abstract:
... Developing efficient technologies to treat recalcitrant organic dye wastewater has long been of great research and practical interest. In this study, a small molecule, formic acid (FA), was applied as a process enhancer for the degradation of methyl orange (MO) dye as a model recalcitrant organic pollutant in aqueous solutions under the condition of UV–Vis light irradiation and air aeration at the ...
DOI:
10.1016/j.watres.2016.04.044

27. Identification of transformation products during advanced oxidation of diatrizoate: Effect of water matrix and oxidation process

Author:
Azerrad, Sara P.; Lütke Eversloh, Christian; Gilboa, Maayan; Schulz, Manoj; Ternes, Thomas; Dosoretz, Carlos G.
Source:
Water research 2016 v.103 pp. 424-434
ISSN:
0043-1354
Subject:
alkalinity; bicarbonates; chlorides; chlorine; desalination; humic acids; hydroxyl radicals; iodates; iodides; mineralization; models; oxidation; ozone; photolysis; pollutants; reverse osmosis; synergism; wastewater
Abstract:
... Removal of micropollutants from reverse osmosis (RO) brines of wastewater desalination by oxidation processes is influenced by the scavenging capacity of brines components, resulting in the accumulation of transformation products (TPs) rather than complete mineralization. In this work the iodinated contrast media diatrizoate (DTZ) was used as model compound due to its relative resistance to oxidat ...
DOI:
10.1016/j.watres.2016.07.066

28. Denitrifying bioreactor clogging potential during wastewater treatment

Author:
Christianson, Laura E.; Lepine, Christine; Sharrer, Kata L.; Summerfelt, Steven T.
Source:
Water research 2016 v.105 pp. 147-156
ISSN:
0043-1354
Subject:
bags; bioreactors; carbon; chemical oxygen demand; denitrification; filtration; fluid mechanics; microbial growth; mineralization; nitrate nitrogen; nitrogen; total suspended solids; wastewater; wastewater aquaculture; wastewater treatment; wood chips
Abstract:
... Chemoheterotrophic denitrification technologies using woodchips as a solid carbon source (i.e., woodchip bioreactors) have been widely trialed for treatment of diffuse-source agricultural nitrogen pollution. There is growing interest in the use of this simple, relatively low-cost biological wastewater treatment option in waters with relatively higher total suspended solids (TSS) and chemical oxyge ...
DOI:
10.1016/j.watres.2016.08.067
Chorus Open Access:
10.1016/j.watres.2016.08.067

29. Mineralizing urban net-zero water treatment: Field experience for energy-positive water management

Author:
Wu, Tingting; Englehardt, James D.
Source:
Water research 2016 v.106 pp. 352-363
ISSN:
0043-1354
Subject:
aeration; bioreactors; byproducts; chemical oxygen demand; denitrification; detection limit; disinfection; drinking water; drugs; energy; filters; hormones; irrigation; mineral water; mineralization; nitrate nitrogen; oxidation; pH; personal care products; rain; septic systems; sludge; total dissolved solids; turbidity; wastewater; water management; water treatment; Florida
Abstract:
... An urban net-zero water treatment system, designed for energy-positive water management, 100% recycle of comingled black/grey water to drinking water standards, and mineralization of hormones and other organics, without production of concentrate, was constructed and operated for two years, serving an occupied four-bedroom, four-bath university residence hall apartment. The system comprised septic ...
DOI:
10.1016/j.watres.2016.10.015

30. Dramatic enhancement of organics degradation and electricity generation via strengthening superoxide radical by using a novel 3D AQS/PPy-GF cathode

Author:
Zhang, Yan; Li, Jinhua; Bai, Jing; Li, Linsen; Xia, Ligang; Chen, Shuai; Zhou, Baoxue
Source:
Water research 2017
ISSN:
0043-1354
Subject:
anthraquinones; cathodes; electric field; electricity generation; electrochemistry; energy recovery; free radicals; fuel cells; graphene; ions; iron; methyl orange; mineralization; oxidants; oxygen; polymerization; superoxide anion; wastewater; wastewater treatment
Abstract:
... A dramatic enhancement of organics degradation and electricity generation has been achieved in a wastewater fuel cell (WFC) system via strengthening superoxide radical with radical chain reaction by using a novel 3D anthraquinone/polypyrrole modified graphite felt (AQS/PPy-GF) cathode. The AQS/PPy-GF was synthesized by one-pot electrochemical polymerization method and used to in-situ generate supe ...
DOI:
10.1016/j.watres.2017.08.054

31. Transformation products of clindamycin in moving bed biofilm reactor (MBBR)

Author:
Ooi, Gordon T.H.; Escola Casas, Monica; Andersen, Henrik R.; Bester, Kai
Source:
Water research 2017 v.113 pp. 139-148
ISSN:
0043-1354
Subject:
bacteria; bacterial infections; bioactive properties; biofilm; clindamycin; drug therapy; drugs; excretion; humans; metabolites; mineralization; rivers; sludge; wastewater; wastewater treatment
Abstract:
... Clindamycin is widely prescribed for its ability to treat a number of common bacterial infections. Thus, clindamycin enters wastewater via human excretion or disposal of unused medication and widespread detection of pharmaceuticals in rivers proves the insufficiency of conventional wastewater treatment plants in removing clindamycin. Recently, it has been discovered that attached biofilm reactors, ...
DOI:
10.1016/j.watres.2017.01.058

32. Efficient treatment of aniline containing wastewater in bipolar membrane microbial electrolysis cell-Fenton system

Author:
Li, Xiaohu; Jin, Xiangdan; Zhao, Nannan; Angelidaki, Irini; Zhang, Yifeng
Source:
Water research 2017 v.119 pp. 67-72
ISSN:
0043-1354
Subject:
aniline; cathodes; cost effectiveness; electrolysis; energy balance; graphene; humans; hydrogen peroxide; mineralization; oxidation; oxygen; pollutants; wastewater
Abstract:
... Aniline-containing wastewater can cause significant environmental problems and threaten the humans's life. However, rapid degradation of aniline with cost-efficient methods remains a challenge. In this work, a novel microbial electrolysis cell with bipolar membrane was integrated with Fenton reaction (MEC-Fenton) for efficient treatment of real wastewater containing a high concentration (4460 ± 52 ...
DOI:
10.1016/j.watres.2017.04.047

33. Degradation of mecoprop in polluted landfill leachate and waste water in a moving bed biofilm reactor

Author:
Escolà Casas, Mònica; Nielsen, Tue Kjærgaard; Kot, Witold; Hansen, Lars Hestbjerg; Johansen, Anders; Bester, Kai
Source:
Water research 2017 v.121 pp. 213-220
ISSN:
0043-1354
Subject:
biofilm; bioremediation; groundwater; landfill leachates; mecoprop; metabolites; methanol; microbial communities; mineralization; models; moving bed biofilm reactors; pollutants; sulfates; wastewater; wastewater treatment
Abstract:
... Mecoprop is a common pollutant in effluent-, storm- and groundwater as well as in leachates from derelict dumpsites. Thus, bioremediation approaches may be considered. We conducted batch experiments with moving bed biofilm (MBBR)-carriers to understand the degradation of mecoprop. As a model, the carriers were incubated in effluent from a conventional wastewater treatment plant which was spiked to ...
DOI:
10.1016/j.watres.2017.05.031

34. Advanced oxidation and disinfection processes for onsite net-zero greywater reuse: A review

Author:
Gassie, Lucien W.; Englehardt, James D.
Source:
Water research 2017 v.125 pp. 384-399
ISSN:
0043-1354
Subject:
byproducts; chlorine; disinfection; energy efficiency; environmental impact; guidelines; health services; humans; hydrogen; hydrogen peroxide; mineralization; nanofiltration; oxidation; ozone; regrowth; residential areas; reverse osmosis; wastewater; water reuse
Abstract:
... Net-zero greywater (NZGW) reuse, or nearly closed-loop recycle of greywater for all original uses, can recover both water and its attendant hot-water thermal energy, while avoiding the installation and maintenance of a separate greywater sewer in residential areas. Such a system, if portable, could also provide wash water for remote emergency health care units. However, such greywater reuse engend ...
DOI:
10.1016/j.watres.2017.08.062

35. Trends in riverine element fluxes: A chronicle of regional socio-economic changes

Author:
Kopáček, Jiří; Hejzlar, Josef; Porcal, Petr; Posch, Maximilian
Source:
Water research 2017 v.125 pp. 374-383
ISSN:
0043-1354
Subject:
air pollution; anions; arable soils; bicarbonates; calcium; centrally planned economy; correlation; drainage; environmental protection; land use; leaching; magnesium; market economy; mineral fertilizers; mineralization; organic matter; pastures; phosphorus; potassium; rivers; socioeconomics; sodium; solutes; wastewater; watersheds; Czech Republic
Abstract:
... We show how concentrations of water solutes in the Vltava River (Czech Republic) and their riverine outputs from the catchment were modified by socio-economic changes, land use, and hydrology between 1960 and 2015. In the early 1960s, HCO3 and Ca were the dominant ions. During 1960–1989 (a period of planned economy with an over-use of synthetic fertilizers, excessive draining of agricultural land ...
DOI:
10.1016/j.watres.2017.08.067

36. Electrochemical Fenton-based treatment of tetracaine in synthetic and urban wastewater using active and non-active anodes

Author:
Ridruejo, Carlota; Centellas, Francesc; Cabot, Pere L.; Sirés, Ignasi; Brillas, Enric
Source:
Water research 2018 v.128 pp. 71-81
ISSN:
0043-1354
Subject:
ammonium; anodes; byproducts; carboxylic acids; cathodes; chlorides; chlorine; electrochemistry; electrolysis; gas chromatography-mass spectrometry; high performance liquid chromatography; hydrogen peroxide; iron; mineralization; nitrates; nitrogen content; oxidation; pH; perchlorates; photolysis; sodium sulfate; ultraviolet radiation; wastewater
Abstract:
... The electrochemical degradation of tetracaine hydrochloride has been studied in urban wastewater. Treatments in simulated matrix with similar ionic composition as well as in 0.050 M Na₂SO₄ were comparatively performed. The cell contained an air-diffusion cathode for H₂O₂ electrogeneration and an anode selected among active Pt, IrO₂-based and RuO₂-based materials and non-active boron-doped diamond ...
DOI:
10.1016/j.watres.2017.10.048

37. Disinfection of urban wastewater by a new photo-Fenton like process using Cu-iminodisuccinic acid complex as catalyst at neutral pH

Author:
Fiorentino, Antonino; Cucciniello, Raffaele; Di Cesare, Andrea; Fontaneto, Diego; Prete, Prisco; Rizzo, Luigi; Corno, Gianluca; Proto, Antonio
Source:
Water research 2018 v.146 pp. 206-215
ISSN:
0043-1354
Subject:
Escherichia coli; catalysts; copper; disinfection; flow cytometry; hydrogen peroxide; iron; mineralization; models; oxidation; pH; phenol; ultraviolet radiation; wastewater; wastewater treatment
Abstract:
... Photo-Fenton process is among the most effective advanced oxidation processes (AOPs) in urban wastewater treatment and disinfection, but its application as tertiary treatment at full scale has not been a feasible/attractive option so far because optimum conditions are typically achieved under acidic pH. In this work a new photo Fenton like process (UV-C/H2O2/IDS-Cu) using iminodisuccinic acid (IDS ...
DOI:
10.1016/j.watres.2018.08.024

38. Enhanced removal of antibiotics from secondary wastewater effluents by novel UV/pre-magnetized Fe0/H2O2 process

Author:
Pan, Yuwei; Zhang, Ying; Zhou, Minghua; Cai, Jingju; Tian, Yusi
Source:
Water research 2019 v.153 pp. 144-159
ISSN:
0043-1354
Subject:
adverse effects; antibiotic resistance; aquatic environment; cost effectiveness; effluents; humic acids; hydrogen peroxide; ions; iron; mineralization; oxytetracycline; ozone; pH; sulfadiazine; sulfamethazine; synergism; ultraviolet radiation; wastewater
Abstract:
... Antibiotics have been frequently detected in the aquatic environment and are of emerging concern due to their adverse effect and potential of inducing antibiotic resistance. In this study, we developed an UV/pre-magnetized Fe0/H2O2 process (UV/pre-Fe0/H2O2) valid for neutral pH conditions, which could remove sulfamethazine (SMT) completely within only 30 min and enhance 1.8 times of SMT removal. M ...
DOI:
10.1016/j.watres.2018.12.063

39. Continuous ozonation of urban wastewater: Removal of antibiotics, antibiotic-resistant Escherichia coli and antibiotic resistance genes and phytotoxicity

Author:
Iakovides, I.C.; Michael-Kordatou, I.; Moreira, N.F.F.; Ribeiro, A.R.; Fernandes, T.; Pereira, M.F.R.; Nunes, O.C.; Manaia, C.M.; Silva, A.M.T.; Fatta-Kassinos, D.
Source:
Water research 2019 v.159 pp. 333-347
ISSN:
0043-1354
Subject:
Escherichia coli; ampicillin; antibiotic resistance; antibiotic resistance genes; azithromycin; bacteria; clarithromycin; death; detection limit; dissolved organic carbon; effluents; genomics; mineralization; ozonation; ozone; physicochemical properties; phytotoxicity; regrowth; sulfamethoxazole; trimethoprim; wastewater
Abstract:
... This work evaluated the removal of a mixture of eight antibiotics (i.e. ampicillin (AMP), azithromycin (AZM), erythromycin (ERY), clarithromycin (CLA), ofloxacin (OFL), sulfamethoxazole (SMX), trimethoprim (TMP) and tetracycline (TC)) from urban wastewater, by ozonation operated in continuous mode at different hydraulic retention times (HRTs) (i.e. 10, 20, 40 and 60 min) and specific ozone doses ( ...
DOI:
10.1016/j.watres.2019.05.025

40. Enhancing CaO2 fenton-like process by Fe(II)-oxalic acid complexation for organic wastewater treatment

Author:
Yuan, Deling; Zhang, Chen; Tang, Shoufeng; Li, Xue; Tang, Jiachen; Rao, Yandi; Wang, Zhibin; Zhang, Qingrui
Source:
Water research 2019 v.163 pp. 114861
ISSN:
0043-1354
Subject:
bicarbonates; calcium peroxide; catalytic activity; chlorides; density functional theory; free radicals; hydrogen peroxide; hydroxyl radicals; iron; methyl orange; mineralization; nitrates; oxalic acid; oxygen; pH; pollutants; pollution control; sulfates; wastewater; wastewater treatment
Abstract:
... Hydrogen peroxide (H2O2) is used widely as Fenton's reagent for organic wastewater treatment. However, the application range of the optimum Fenton reaction is narrow, needing to adjust pH before and after treatment. Besides, the disproportionation of H2O2 and generated iron precipitation also confine the normal operation of Fenton method. To overcome the drawbacks of the traditional Fenton process ...
DOI:
10.1016/j.watres.2019.114861

41. Expanding the application of photoelectro-Fenton treatment to urban wastewater using the Fe(III)-EDDS complex

Author:
Ye, Zhihong; Brillas, Enric; Centellas, Francesc; Cabot, Pere Lluís; Sirés, Ignasi
Source:
Water research 2020 v.169 pp. 115219
ISSN:
0043-1354
Subject:
anodes; antidepressants; case studies; catalysts; catalytic activity; cathodes; chelating agents; chlorides; chlorine; electrical properties; fluorides; hydrogen peroxide; hydroxyl radicals; ions; iron; mineralization; nitrates; oxidation; pH; photoreduction; solubilization; toxicity; wastewater
Abstract:
... This work reports the first investigation on the use of EDDS as chelating agent in photoelectro-Fenton (PEF) treatment of water at near-neutral pH. As a case study, the removal of the antidepressant fluoxetine was optimized, using an electrochemical cell composed of an IrO₂-based anode an air-diffusion cathode for in-situ H₂O₂ production. Electrolytic trials at constant current were made in ultrap ...
DOI:
10.1016/j.watres.2019.115219