Removal of seven endocrine disrupting chemicals (EDCs) from municipal wastewater effluents by a freshwater green alga

2019 ◽  
Vol 247 ◽  
pp. 534-540 ◽  
Author(s):  
Xuelian Bai ◽  
Kumud Acharya
Keyword(s):  
Green Alga ◽  
Municipal Wastewater ◽  
Endocrine Disrupting Chemicals ◽  
Endocrine Disrupting ◽  
Wastewater Effluents

Fate of indicator endocrine disrupting chemicals in sewage during treatment and polishing for non-potable reuse

2010 ◽  
Vol 62 (6) ◽  
pp. 1416-1423 ◽  
Author(s):  
Mike Holmes ◽  
Anu Kumar ◽  
Ali Shareef ◽  
Hai Doan ◽  
Richard Stuetz ◽  
...  
Keyword(s):  
Municipal Wastewater ◽  
Agricultural Land ◽  
Endocrine Disrupting Chemicals ◽  
South Australia ◽  
Ionic Surfactant ◽  
Municipal Wastewater Treatment ◽  
Nonyl Phenol ◽  
Dissolved Air Flotation ◽  
Potable Reuse ◽  
Endocrine Disrupting

The removal and fate of several indicator endocrine disrupting chemicals (EDCs) at two large municipal wastewater treatment plants (WWTPs) in Adelaide South Australia was investigated. Non-estrogens included the non-ionic surfactant breakdown compounds nonyl phenol mono- and di-ethoxylates, 4-t-octylphenol and 4-nonyl phenol; and, the plasticizer bisphenol A. Estrogens included 17β-estradiol; estrone; and, 17α-ethynylestradiol. Effluent from Bolivar WWTP is polished using stabilisation lagoons followed by coagulation, dissolved air flotation/filtration and chlorination for non-potable reuse. Biosolids from both plants is applied to agricultural land as a soil conditioner. Non-estrogen indicator EDCs were detected at the highest concentration in sewage, effluent and sludge but estrogen indicator EDCs contributed the greatest potential for estrogenicity. The fate of indicator EDCs at various treatment stages is complex and includes biochemical modification/transformation and/or partitioning to either solid or liquid phases. Activated sludge treatment was an important removal barrier achieving moderate—high removal of predicted and YES (a yeast screen assay) measured estrogen equivalent values (EEq). Combined polishing treatment achieved high removal of candidate EDCs (97%). Mass balance indicates that the largest source of estrogenicity discharged from both WWTPs investigated is digested sludge which accounts for 18 and 22% respectively of the combined predicted and YES measured EEq measured in sewage at the two WWTPs.

scholarly journals Simultaneous detection of endocrine disrupting chemicals including conjugates in municipal wastewater and sludge with enhanced sample pretreatment and UPLC-MS/MS

2015 ◽  
Vol 17 (8) ◽  
pp. 1377-1385 ◽  
Author(s):  
Bing Zhu ◽  
Weiwei Ben ◽  
Xiangjuan Yuan ◽  
Yu Zhang ◽  
Min Yang ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Endocrine Disrupting Chemicals ◽  
Simultaneous Detection ◽  
Sample Pretreatment ◽  
Endocrine Disrupting

Free and conjugated endocrine disrupting chemicals were simultaneously detected in wastewater and sludge to explore their behavior and fate in wastewater treatment plants.

Nanofiltration of endocrine disrupting compounds

2003 ◽  
Vol 3 (5-6) ◽  
pp. 321-327 ◽  
Author(s):  
M. Gallenkemper ◽  
T. Wintgens ◽  
T. Melin
Keyword(s):  
Wastewater Treatment ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Endocrine Disrupting Compounds ◽  
Municipal Wastewater Treatment ◽  
Water And Wastewater Treatment ◽  
Wide Range ◽  
Endocrine Disrupting ◽  
Municipal Wastewater Treatment Plants ◽  
Set Up

Endocrine disrupting compounds can affect the hormone system in organisms. A wide range of endocrine disrupters were found in sewage and effluents of municipal wastewater treatment plants. Toxicological evaluations indicate that conventional wastewater treatment plants are not able to remove these substances sufficiently before disposing effluent into the environment. Membrane technology, which is proving to be an effective barrier to these substances, is the subject of this research. Nanofiltration provides high quality permeates in water and wastewater treatment. Eleven different nanofiltration membranes were tested in the laboratory set-up. The observed retention for nonylphenol (NP) and bisphenol A (BPA) ranged between 70% and 100%. The contact angle is an indicator for the hydrophobicity of a membrane, whose influence on the permeability and retention of NP was evident. The retention of BPA was found to be inversely proportional to the membrane permeability.

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