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564 Newest Publications about the topic wastewater treatment

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Determination of phosphite in a full-scale municipal wastewater treatment plant

17-12-2014 | Xiaolong Yu; jinju geng; Hongqiang Ren; Chao Han; Huimin Qiu, Journal of Environmental Monitoring, 2014

Phosphite (HPO32-, +3), a reduced P species in P biogeochemical cycle, was monitored in a full scale municipal wastewater treatment plant (WWTP) with the anaerobic/anoxic/aerobic-membrane bioreactor (A2/O-MBR) technology for treating mixed wastewater (56% industrial wastewater and 44% domestic ...

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The sludge loading rate regulates the growth and release of heterotrophic bacteria resistant to six types of antibiotics in wastewater activated sludge

17-12-2014 | Qing-bin Yuan; Mei-ting Guo; Jian Yang, Journal of Environmental Monitoring, 2014

Wastewater treatment plants are considered as hot reservoirs of antimicrobial resistance. However, the fates of antibiotic-resistant bacteria during biological treatment processes and relevant influencing factors have not been fully understood. This study evaluated the effects of the sludge ...

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Occurrence, seasonal variation and removal efficiency of antibiotics and their metabolites in wastewater treatment plants, Jiulongjiang River Basin, South China

16-12-2014 | Han Zhang; Miaomiao Du; Hongyou Jiang; Dandan Zhang; Lifeng Lin; Hong Ye; Xian Zhang, Journal of Environmental Monitoring, 2014

Wastewater treatment plants (WWTPs) are regarded as one of the most important sources of antibiotics in the environment. The occurrence, seasonal variation and removal efficiency of 21 antibiotics and 10 metabolites, including five sulfonamides and three of their metabolites, six quinolones, two ...

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Optimal design and operations of water supply chain networks for shale gas production: MILFP model and algorithms for the water‐energy nexus

12-12-2014 | Jiyao Gao, Fengqi You, AIChE Journal, 2014

Abstract The optimal design and operations of water supply chain networks for shale gas production is addressed. A mixed‐integer linear fractional programming (MILFP) model is developed with the objective to maximize profit per unit freshwater consumption, such that both economic performance ...

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Flame retardancy and mechanical properties of ferrum ammonium phosphate–halloysite/epoxy polymer nanocomposites

11-12-2014 | Yanmao Dong, Brian Lisco, Hao Wu, Joseph H. Koo, Mourad Krifa, Journal of Applied Polymer Science, 2014

ABSTRACT To recycle the nitrogen (N) and phosphorus (P) from wastewater, ferrum ammonium phosphate (FAP)–halloysite nanotubes (HNTs) were synthesized with simulated wastewater containing N, P, and Fe pollutants as raw materials. The adsorption–chemical precipitation in situ method was used to ...

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Estrone Degradation: Does Organic Matter (Quality), Matter?

11-12-2014 | David T. Tan; Hanna R. Temme; William A. Arnold; Paige J. Novak, Environmental Science & Technology, 2014

Understanding the parameters that drive E1 degradation is necessary to improve existing wastewater treatment systems and evaluate potential treatment options. Organic matter quality could be an important parameter. Microbial communities grown from activated sludge seeds using different dissolved ...

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Optimizing the mode of operation in microbial fuel cell (MFC): bioelectrochemical and bioelectro‐kinetic evaluation of batch, semi‐continuous and continuous mode operation

10-12-2014 | Suresh Babu Pasupuleti, Sandipam Srikanth, Xochitl Dominguez‐Benetton, S Venkata Mohan, Deepak Pant, Journal of Chemical Technology & Biotechnology, 2014

Abstract Background Upscaling microbial fuel cells (MFCs) to make them energy‐competitive systems requires a systematic understanding of its operating conditions. This study emphasizes the operation of a new MFC design with two gas diffusion cathodes under three different operational modes, ...

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Sludge Loading Rate Regulates Growth and Release of Heterotrophic Bacteria Resistant to Six Types of Antibiotics in Wastewater Activated Sludge

09-12-2014 | Qingbin Yuan; Meiting Guo; Jian Yang, Journal of Environmental Monitoring, 2014

Wastewater treatment plants are considered as hot reservoirs for antimicrobial resistance. However, the fates of antibiotic-resistant bacteria during biological treatment processes and relevant influencing factors have not been fully understood. This study evaluated the effects of the sludge ...

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Photochromic Metal–Organic Frameworks: Reversible Control of Singlet Oxygen Generation

04-12-2014 | Jihye Park, Dawei Feng, Shuai Yuan, Hong‐Cai Zhou, Angewandte Chemie International Edition, 2014

Abstract The controlled generation of singlet oxygen is of great interest owing to its potential applications including industrial wastewater treatment, photochemistry, and photodynamic therapy. Two photochromic metal–organic frameworks, PC‐PCN and SO‐PCN, have been developed. A photochromic ...

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Liquid residence time distribution in A Two‐Compartment Wastewater Treatment Bioreactor

04-12-2014 | Ion Iliuta, Faïçal Larachi, Maxime Déry, Serge Baillargeon, The Canadian Journal of Chemical Engineering, 2014

Residence time distribution of liquid phase in a two‐compartment (packed‐bed/packed‐bed or packed‐bed/packing‐free) bioreactor for wastewater treatment was evaluated via a complex liquid flow structure. RTD in packed‐bed compartments was modelled using a modified axial dispersion‐exchange model ...

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