Please use this identifier to cite or link to this item:
Title: A critical review of the formation of mono- and dicarboxylated metabolic intermediates of alkylphenol polyethoxylates during wastewater treatment and their environmental significance
Authors: Chiu, TY
Paterakis, N
Cartmell, E
Scrimshaw, MD
Lester, JN
Keywords: Alkylphenol ethoxylates;Wastewater;Alkylphenoxyacetic acids;Metabolites;Endocrine disrupting compounds
Issue Date: 2010
Publisher: Taylor & Francis
Citation: Critical Reviews in Environmental Science and Technology, 40(3), 199 - 238, 2010
Abstract: Alkylphenoxyacetic acids, the metabolic biodegradation products of alkylphenol ethoxylates, are commonly found in wastewaters and sewage effluents. These persistent hydrophilic derivatives possess intrinsic estrogenic activity, which can mimic natural hormones. Their concentrations increase through the sewage treatment works as a result of biodegradation and biotransformation, and when discharged can disrupt endocrine function in fish. These acidic metabolites represent the dominant alkylphenolic compounds found in wastewater effluent and their presence is cause for concern as, potentially, through further biotransformation and biodegradation, they can act as sources of nonylphenol, which is toxic and estrogenic. The authors aim to assess the mechanisms of formation as well as elimination of alkylphenoxyacetic acids within conventional sewage treatment works with the emphasis on the activated sludge process. In addition, they evaluate the various factors influencing their degradation and formation in laboratory scale and full-scale systems. The environmental implications of these compounds are considered, as is the need for tertiary treatment processes for their removal.
Description: This is the author's accepted manuscript. The final published article is available from the link below. Copyright @ 2010 Taylor & Francis.
ISSN: 1064-3389
Appears in Collections:Environment
Institute for the Environment

Files in This Item:
File Description SizeFormat 
Fulltext.pdf708.53 kBAdobe PDFView/Open

Items in BURA are protected by copyright, with all rights reserved, unless otherwise indicated.