نتایج جستجو برای: wwtps

تعداد نتایج: 690  

Journal: :Applied sciences 2021

Wastewater treatment plants (WWTPs) in the City of New York, United States, are particularly vulnerable to frequent extreme weather events, including storm surges, high-intensity rainfall, and sea level rise, also affected by cascade these events. The complex structural configuration WWTPs requires very fine-scale flood risk assessment, which current research has not pursued. We propose a robus...

Journal: :Journal of environmental chemical engineering 2021

Discharges from the wastewater treatment plants (WWTPs) are among main sources of contamination to receiving surface water, therefore quality treated needs be properly monitored. However, not only effluents larger WWTPs employing advanced processes have been considered, but also those more conventional WWTPs. In this study, occurrence and behavior pharmaceuticals investigated in a WWTP which re...

Journal: :Water 2022

Pharmaceuticals and personal care products (PPCPs) were investigated in five wastewater treatment plants (WWTPs), groundwater, irrigated soils, Amman Al-Balqa governorates Jordan. PPCPs extracted from water samples by solid-phase extraction (SPE) analyzed high-performance liquid chromatography coupled with tandem mass spectrometry (HPLC–MS/MS). Carbamazepine, ciprofloxacin, ceftiofur, diclofena...

2016
De-Gao Wang Qian-Qian Dong Juan Du Shuo Yang Yun-Jie Zhang Guang-Shui Na Stuart G Ferguson Zhuang Wang Tong Zheng

OBJECTIVE To use Monte Carlo simulation to assess the uncertainty and variability of tobacco consumption through wastewater analysis in a city. METHODS A total of 11 wastewater treatment plants (WWTPs) (serving 2.2 million people; approximately 83% of urban population in Dalian) were selected and sampled. By detection and quantification of principal metabolites of nicotine, cotinine (COT) and...

2012
Paola C. Rúa-Gómez Arlen A. Guedez Conchi O. Ania

The occurrence and removal efficiencies of the pharmaceuticals lidocaine (LDC), tramadol (TRA) and venlafaxine (VEN), and their major active metabolites monoethylglycinexylidide (MEGX), O-desmethyltramadol (ODT) and O-desmethylvenlafaxine (ODV) were studied at four wastewater treatment plants (WWTPs) equipped with activated sludge treatment technologies. In parallel to activated sludge treatmen...

Journal: :Environmental science & technology 2010
Deborah A Bronk Quinn N Roberts Marta P Sanderson Elizabeth A Canuel Patrick G Hatcher Rajaa Mesfioui Katherine C Filippino Margaret R Mulholland Nancy G Love

The goal of this study was to investigate three potential ways that the soluble organic nitrogen (N) fraction of wastewater treatment plant (WWTP) effluents, termed effluent organic N (EON), could contribute to coastal eutrophication--direct biological removal, photochemical release of labile compounds, and salinity-mediated release of ammonium (NH4+). Effluents from two WWTPs were used in the ...

Journal: :Water research 2014
Elham Ramin Gürkan Sin Peter Steen Mikkelsen Benedek Gy Plósz

Current research focuses on predicting and mitigating the impacts of high hydraulic loadings on centralized wastewater treatment plants (WWTPs) under wet-weather conditions. The maximum permissible inflow to WWTPs depends not only on the settleability of activated sludge in secondary settling tanks (SSTs) but also on the hydraulic behaviour of SSTs. The present study investigates the impacts of...

Journal: :Environmental science and pollution research international 2013
Weixiao Qi Huijuan Liu Benoît Pernet-Coudrier Jiuhui Qu

In this study, surface water samples from the Wenyu River and the North Canal, effluent from major wastewater treatment plants (WWTPs) in Beijing, and wastewater from open sewers that discharge directly into the river system were collected and analyzed for 16 priority USEPA polycyclic aromatic hydrocarbons (PAHs). Concentrations of these 16 PAHs ranged from 193 to 1790 ng/L in river surface wat...

2017
Cristiana Morosini Milena Marsoni Vincenzo Torretta Fabio Conti Marco Ragazzi Elena Cristina Rada Gabriela Cioca

The presence of emerging organic micropollutants (such as pharmaceuticals) in sewage has been, for a long time, an issue of great concern within the international scientific debate. This item represents one of the main challenges related to a sustainable development, with particular concern to the public health control. While most of the work has been concentrated on their detection and the eva...

Journal: :Environmental science. Processes & impacts 2015
Bing Zhu Weiwei Ben Xiangjuan Yuan Yu Zhang Min Yang Zhimin Qiang

The co-existence of free and conjugated estrogens and the interference from complex matrices often lead to largely variable detected concentrations and sometimes even negative removal efficiencies of typical endocrine disrupting chemicals (EDCs) in wastewater treatment plants (WWTPs). In this study, a highly selective and sensitive method was developed for simultaneous extraction, elution, and ...

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