Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/87460
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dc.titleBehaviors and environmental risk assessment of estrogenic endocrine disruptors in anaerobic domestic wastewater treatment
dc.contributor.authorWang, Y.
dc.contributor.authorYuan, T.
dc.contributor.authorHu, J.-Y.
dc.date.accessioned2014-10-08T08:31:48Z
dc.date.available2014-10-08T08:31:48Z
dc.date.issued2009-06
dc.identifier.citationWang, Y.,Yuan, T.,Hu, J.-Y. (2009-06). Behaviors and environmental risk assessment of estrogenic endocrine disruptors in anaerobic domestic wastewater treatment. Huanjing Kexue/Environmental Science 30 (6) : 1716-1721. ScholarBank@NUS Repository.
dc.identifier.issn02503301
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/87460
dc.description.abstractSolid phase extraction-LC/MS/MS detection method was applied to study the concentrations and sludge adsorptions of nine estrogenic endocrine disruptors (EEDs) in an upflow anaerobic sludge blanket (UASB) and an anaerobic filter (AF). Nonylphenol equivalent quantity (NEQ) was calculated to evaluate the environmental risk of the EEDs. The results show anaerobic sludge adsorption has positive correlation with lgKow and molecular length of EEDs. 17β-estradiol (E2) and daidzein reached 83.2% and 90.4% removal rates in UASB, respectively. Genistein in AF is removed more than 80%. The sludge-water partition coefficient(Kp) of nine EEDs ranged from 0.15-23.3 in UASB and 0.05-159.67 in AF. Biodegradation could be the main elimination pathway for daidzein, genistein, bisphenol A and estriol, by combining analysis of removal data and Kp values. Environmental risk of EEDs was reduced after anaerobic treatment, as effluent NEQ was below the US EPA nonylphenol criteria (28 μg·L-1, hour average concentration standard).
dc.sourceScopus
dc.subjectAnaerobic filter
dc.subjectEnvironmental risk assessment
dc.subjectEstrogenic endocrine disruptors
dc.subjectRemoval
dc.subjectSludge adsorption
dc.subjectUpflow anaerobic sludge blanket
dc.typeArticle
dc.contributor.departmentDIVISION OF ENVIRONMENTAL SCIENCE & ENGG
dc.description.sourcetitleHuanjing Kexue/Environmental Science
dc.description.volume30
dc.description.issue6
dc.description.page1716-1721
dc.description.codenHCKHD
dc.identifier.isiutNOT_IN_WOS
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