Occurrence of trace organic contaminants in wastewater sludge and their removals by anaerobic digestion.

Yang, S; Hai, FI; Price, WE; McDonald, J; Khan, SJ; Nghiem, LD

Occurrence of trace organic contaminants in wastewater sludge and their removals by anaerobic digestion.

Yang, S Hai, FI Price, WE McDonald, J Khan, SJ Nghiem, LD

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Publisher:: ELSEVIER SCI LTD
Publication Type:: Journal Article
Citation:: Bioresour Technol, 2016, 210, pp. 153-159
Issue Date:: 2016-06

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Field	Value	Language
dc.contributor.author	Yang, S
dc.contributor.author	Hai, FI
dc.contributor.author	Price, WE
dc.contributor.author	McDonald, J
dc.contributor.author	Khan, SJ
dc.contributor.author	Nghiem, LD
dc.date.accessioned	2022-02-11T21:38:54Z
dc.date.available	2015-12-28
dc.date.available	2022-02-11T21:38:54Z
dc.date.issued	2016-06
dc.identifier.citation	Bioresour Technol, 2016, 210, pp. 153-159
dc.identifier.issn	0960-8524
dc.identifier.issn	1873-2976
dc.identifier.uri	http://hdl.handle.net/10453/154427
dc.description.abstract	This study aims to evaluate the occurrence of trace organic contaminants (TrOCs) in wastewater sludge and their removal during anaerobic digestion. The significant occurrence of 18 TrOCs in primary sludge was observed. These TrOCs occurred predominantly in the solid phase. Some of these TrOCs (e.g. paracetamol, caffeine, ibuprofen and triclosan) were also found at high concentrations (>10,000ng/L) in the aqueous phase. The overall removal of TrOCs (from both the aqueous and solid phase) by anaerobic digestion was governed by their molecular structure (e.g. the presence/absence of electron withdrawing/donating functional groups). While an increase in sludge retention time (SRT) of the digester resulted in a small but clearly discernible increase in basic biological performance (e.g. volatile solids removal and biogas production), the impact of SRT on TrOC removal was negligible. The lack of SRT influence on TrOC removal suggests that TrOCs were not the main substrate for anaerobic digestion.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	ELSEVIER SCI LTD
dc.relation.ispartof	Bioresour Technol
dc.relation.isbasedon	10.1016/j.biortech.2015.12.080
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Biotechnology
dc.subject.mesh	Anaerobiosis
dc.subject.mesh	Biofuels
dc.subject.mesh	Bioreactors
dc.subject.mesh	Methane
dc.subject.mesh	Organic Chemicals
dc.subject.mesh	Sewage
dc.subject.mesh	Waste Water
dc.subject.mesh	Water Pollutants, Chemical
dc.subject.mesh	Water Purification
dc.subject.mesh	Organic Chemicals
dc.subject.mesh	Methane
dc.subject.mesh	Water Pollutants, Chemical
dc.subject.mesh	Bioreactors
dc.subject.mesh	Sewage
dc.subject.mesh	Water Purification
dc.subject.mesh	Anaerobiosis
dc.subject.mesh	Biofuels
dc.subject.mesh	Waste Water
dc.title	Occurrence of trace organic contaminants in wastewater sludge and their removals by anaerobic digestion.
dc.type	Journal Article
utslib.citation.volume	210
utslib.location.activity	England
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	closed_access	*
dc.date.updated	2022-02-11T21:38:53Z
pubs.publication-status	Published
pubs.volume	210

Abstract:

This study aims to evaluate the occurrence of trace organic contaminants (TrOCs) in wastewater sludge and their removal during anaerobic digestion. The significant occurrence of 18 TrOCs in primary sludge was observed. These TrOCs occurred predominantly in the solid phase. Some of these TrOCs (e.g. paracetamol, caffeine, ibuprofen and triclosan) were also found at high concentrations (>10,000ng/L) in the aqueous phase. The overall removal of TrOCs (from both the aqueous and solid phase) by anaerobic digestion was governed by their molecular structure (e.g. the presence/absence of electron withdrawing/donating functional groups). While an increase in sludge retention time (SRT) of the digester resulted in a small but clearly discernible increase in basic biological performance (e.g. volatile solids removal and biogas production), the impact of SRT on TrOC removal was negligible. The lack of SRT influence on TrOC removal suggests that TrOCs were not the main substrate for anaerobic digestion.

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http://hdl.handle.net/10453/154427