نتایج جستجو برای: secondary effluent

تعداد نتایج: 313129  

1999

WAC 173-205-010 Purpose. 173-205-020 Definitions. 173-205-030 Applicability. 173-205-040 Determining the need for effluent characterization. 173-205-050 Effluent testing for toxicity. 173-205-060 Additional effluent characterizations. 173-205-070 Monitoring for compliance with whole effluent toxicity limits. 173-205-080 Samples for whole effluent toxicity testing. 173-205-090 Response to noncom...

Journal: :The Science of the total environment 2013
Maria G Antoniou Gerly Hey Sergio Rodríguez Vega Aikaterini Spiliotopoulou Jerker Fick Mats Tysklind Jes la Cour Jansen Henrik Rasmus Andersen

The aim of the this study was to investigate the ozone dosage required to remove active pharmaceutical ingredients (APIs) from biologically treated wastewater of varying quality, originated from different raw wastewater and wastewater treatment processes. Secondary effluents from six Swedish wastewater treatment plants (WWTP) were spiked with 42 APIs (nominal concentration μg/L) and treated wit...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی 1392

flow in natural river bends is a complex and turbulent phenomenon which affects the scour and sedimentations and causes an irregular bed topography on the bed. for the reason, the flow hydralics and the parameters which affect the flow to be studied and understand. in this study the effect of bed and wall roughness using the software fluent discussed in a sharp 90-degree flume bend with 40.3cm ...

2014
Kiran Gupta

A study was performed to evaluate capability of aquatic macrophyte Eichhornia crassipes plants to combat oxidative stress caused by tannery effluent treatment. For this purpose, tannery effluent was collected from “Up flow Anaerobic Sludge Blanket” (UASB) Jajmau, Kanpur. Plants of Eichhornia crassipes were exposed to various concentrations of tannery effluent (0.0, 25, 50, 75 and 100%) for 2 an...

Journal: :Environmental toxicology and chemistry 2011
Carlos Constantino Mark Scrimshaw Sean Comber John Churchley

The toxicity of Cu to Daphnia magna was investigated in a series of 48-h immobilization assays in effluents from four wastewater treatment works. The assay results were compared with median effective concentration (EC50) forecasts produced by the HydroQual biotic ligand model (BLM), the refined D. magna BLM, and a modified BLM that was constructed by integrating the refined D. magna biotic liga...

2011
Jelena Radjenovíc Marin Matošíc Ivan Mijatovíc Mira Petrovíc Damià Barceló

The development and application of a membrane bioreactor (MBR) for fullscale municipal wastewater treatment is the most important recent technological advance in terms of biological wastewater treatment. The MBR is a suspended growth-activated sludge system that utilizes microporous membranes for solid/liquid separation instead of secondary clarifiers. It represents a decisive step forward conc...

Journal: :Environmental Health Perspectives 2002
Luis O B Afonso Jack L Smith Michael G Ikonomou Robert H Devlin

Chinook salmon alevins were exposed during their labile period for sex differentiation to different concentrations of bleached kraft mill effluent (BKME), primary sewage effluent, secondary sewage effluent (SE), 17ss-estradiol, testosterone, and nonylphenol. After exposure for 29 days post hatching (DPH), fish were allowed to grow until 103 and 179 DPH, at which time their genetic sex was deter...

2014
Sarah Roberts Christopher Higgins John McCray

Conventional onsite wastewater treatment system design relies on a septic tank and soil treatment unit (STU) for treatment of wastewater and integration of the final effluent into the environment. Organic water contaminants (OWCs), chemicals found in pharmaceutical drugs, detergents, surfactants, and other personal care and cleaning products, have been observed in septic tank effluent and the e...

2015
Stefanos Giannakis Ana Isabel Merino Gamo Efthymios Darakas Antoni Escalas-Cañellas César Pulgarin

In this study, the effect of light intermittence on solar disinfection of secondary treated wastewater was investigated. Synthetic secondary effluent was spiked with E. coli and submitted to 3 different light intermittence regimes by circulating the effluent between a dark storage tank and three in-series illuminated reactors. The relative influence of the recirculation rate on bacterial inacti...

Journal: :Water science and technology : a journal of the International Association on Water Pollution Research 2010
Shija Kazumba Leonid Gillerman Yoel DeMalach Gideon Oron

Scarcity of fresh high-quality water has heightened the importance of wastewater reuse primarily in dry regions together with improving its efficient use by implementing the Subsurface Drip Irrigation (SDI) method. Sustainable effluent reuse combines soil and plant aspects, along with the maintainability of the application system. In this study, field experiments were conducted for two years on...

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