The impact of variations of influent loading on the efficacy of an advanced tertiary sewage treatment plant to remove endocrine disrupting chemicals

Hamilton, LA; Tremblay, LA; Northcott, GL; Boake, M; Lim, RP

The impact of variations of influent loading on the efficacy of an advanced tertiary sewage treatment plant to remove endocrine disrupting chemicals

Hamilton, LA

Tremblay, LA Northcott, GL Boake, M Lim, RP

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Publication Type:: Journal Article
Citation:: Science of the Total Environment, 2016, 560-561 pp. 101 - 109
Issue Date:: 2016-08-01

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Field	Value	Language
dc.contributor.author	Hamilton, LA https://orcid.org/0000-0002-3494-8655	en_US
dc.contributor.author	Tremblay, LA	en_US
dc.contributor.author	Northcott, GL	en_US
dc.contributor.author	Boake, M	en_US
dc.contributor.author	Lim, RP	en_US
dc.date.available	2016-04-01	en_US
dc.date.issued	2016-08-01	en_US
dc.identifier.citation	Science of the Total Environment, 2016, 560-561 pp. 101 - 109	en_US
dc.identifier.issn	0048-9697	en_US
dc.identifier.uri	http://hdl.handle.net/10453/121827
dc.description.abstract	© 2016 Elsevier B.V. The impact of changes in influent load on the removal of endocrine disrupting chemicals (EDCs) by sewage treatment has not been fully characterised. This study assessed the efficacy of an advanced tertiary sewage treatment plant (STP) to remove EDCs during normal and peak flow events of sewage influent using trace chemical analysis of selected EDCs and four estrogenic in vitro bioassays. During the summer holiday season, influent volume increased by 68%, nutrient concentrations by at least 26% and hydraulic retention time was reduced by 40% compared with base flow conditions. Despite these pressures on the treatment system the concentrations and mass loading of estrone, 17β-estradiol, estriol, Bisphenol A, 4-t-octylphenol and technical nonylphenol were not significantly higher (p > 0.05) during the peak flow conditions compared with base flow conditions. Chemical analysis and in vitro bioassays showed that the efficacy of the STP in removing EDCs was not affected by the different loadings between baseline and peak flow regimes. This study demonstrates that large flow variations within the design capacity of advanced multi-stage STPs should not reduce the removal efficacy of EDCs.	en_US
dc.relation	http://purl.org/au-research/grants/arc/LP0560600R1
dc.relation.ispartof	Science of the Total Environment	en_US
dc.relation.isbasedon	10.1016/j.scitotenv.2016.04.003	en_US
dc.subject.classification	Environmental Sciences	en_US
dc.subject.mesh	Benzhydryl Compounds	en_US
dc.subject.mesh	Phenols	en_US
dc.subject.mesh	Estradiol	en_US
dc.subject.mesh	Estriol	en_US
dc.subject.mesh	Water Pollutants, Chemical	en_US
dc.subject.mesh	Waste Disposal, Fluid	en_US
dc.subject.mesh	Endocrine Disruptors	en_US
dc.title	The impact of variations of influent loading on the efficacy of an advanced tertiary sewage treatment plant to remove endocrine disrupting chemicals	en_US
dc.type	Journal Article
utslib.citation.volume	560-561	en_US
utslib.for	090409 Wastewater Treatment Processes	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Life Sciences
utslib.copyright.status	closed_access
pubs.publication-status	Published	en_US
pubs.volume	560-561	en_US

Abstract:

© 2016 Elsevier B.V. The impact of changes in influent load on the removal of endocrine disrupting chemicals (EDCs) by sewage treatment has not been fully characterised. This study assessed the efficacy of an advanced tertiary sewage treatment plant (STP) to remove EDCs during normal and peak flow events of sewage influent using trace chemical analysis of selected EDCs and four estrogenic in vitro bioassays. During the summer holiday season, influent volume increased by 68%, nutrient concentrations by at least 26% and hydraulic retention time was reduced by 40% compared with base flow conditions. Despite these pressures on the treatment system the concentrations and mass loading of estrone, 17β-estradiol, estriol, Bisphenol A, 4-t-octylphenol and technical nonylphenol were not significantly higher (p > 0.05) during the peak flow conditions compared with base flow conditions. Chemical analysis and in vitro bioassays showed that the efficacy of the STP in removing EDCs was not affected by the different loadings between baseline and peak flow regimes. This study demonstrates that large flow variations within the design capacity of advanced multi-stage STPs should not reduce the removal efficacy of EDCs.

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http://hdl.handle.net/10453/121827