Understanding the mechanisms of trace organic contaminant removal by high retention membrane bioreactors: a critical review

Asif, MB; Ansari, AJ; Chen, SS; Nghiem, LD; Price, WE; Hai, FI

Understanding the mechanisms of trace organic contaminant removal by high retention membrane bioreactors: a critical review

Asif, MB Ansari, AJ Chen, SS Nghiem, LD

Price, WE Hai, FI

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Publication Type:: Journal Article
Citation:: Environmental Science and Pollution Research, 2019, 26 (33), pp. 34085 - 34100
Issue Date:: 2019-11-01

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Field	Value	Language
dc.contributor.author	Asif, MB	en_US
dc.contributor.author	Ansari, AJ	en_US
dc.contributor.author	Chen, SS	en_US
dc.contributor.author	Nghiem, LD https://orcid.org/0000-0002-9039-5792	en_US
dc.contributor.author	Price, WE	en_US
dc.contributor.author	Hai, FI	en_US
dc.date.available	2018-09-14	en_US
dc.date.issued	2019-11-01	en_US
dc.identifier.citation	Environmental Science and Pollution Research, 2019, 26 (33), pp. 34085 - 34100	en_US
dc.identifier.issn	0944-1344	en_US
dc.identifier.uri	http://hdl.handle.net/10453/131637
dc.description.abstract	© 2018, Springer-Verlag GmbH Germany, part of Springer Nature. High retention membrane bioreactors (HR-MBR) combine a high retention membrane separation process such as membrane distillation, forward osmosis, or nanofiltration with a conventional activated sludge (CAS) process. Depending on the physicochemical properties of the trace organic contaminants (TrOCs) as well as the selected high retention membrane process, HR-MBR can achieve effective removal (80–99%) of a broad spectrum of TrOCs. An in-depth assessment of the available literature on HR-MBR performance suggests that compared to CAS and conventional MBRs (using micro- or ultra-filtration membrane), aqueous phase removal of TrOCs in HR-MBR is significantly better. Conceptually, longer retention time may significantly improve TrOC biodegradation, but there are insufficient data in the literature to evaluate the extent of TrOC biodegradation improvement by HR-MBR. The accumulation of hardly biodegradable TrOCs within the bioreactor of an HR-MBR system may complicate further treatment and beneficial reuse of sludge. In addition to TrOCs, accumulation of salts gradually increases the salinity in bioreactor and can adversely affect microbial activities. Strategies to mitigate these limitations are discussed. A qualitative framework is proposed to predict the contribution of the different key mechanisms of TrOC removal (i.e., membrane retention, biodegradation, and sorption) in HR-MBR.	en_US
dc.relation.ispartof	Environmental Science and Pollution Research	en_US
dc.relation.isbasedon	10.1007/s11356-018-3256-8	en_US
dc.subject.classification	Environmental Sciences	en_US
dc.subject.mesh	Water	en_US
dc.subject.mesh	Organic Chemicals	en_US
dc.subject.mesh	Membranes, Artificial	en_US
dc.subject.mesh	Water Pollutants	en_US
dc.subject.mesh	Bioreactors	en_US
dc.subject.mesh	Sewage	en_US
dc.subject.mesh	Waste Disposal, Fluid	en_US
dc.subject.mesh	Water Purification	en_US
dc.subject.mesh	Osmosis	en_US
dc.subject.mesh	Biodegradation, Environmental	en_US
dc.subject.mesh	Salinity	en_US
dc.subject.mesh	Distillation	en_US
dc.title	Understanding the mechanisms of trace organic contaminant removal by high retention membrane bioreactors: a critical review	en_US
dc.type	Journal Article
utslib.citation.volume	33	en_US
utslib.citation.volume	26	en_US
utslib.for	0502 Environmental Science and Management	en_US
utslib.for	1002 Environmental Biotechnology	en_US
utslib.for	03 Chemical Sciences	en_US
utslib.for	05 Environmental Sciences	en_US
utslib.for	06 Biological Sciences	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 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	open_access
pubs.issue	33	en_US
pubs.publication-status	Published	en_US
pubs.volume	26	en_US

Abstract:

© 2018, Springer-Verlag GmbH Germany, part of Springer Nature. High retention membrane bioreactors (HR-MBR) combine a high retention membrane separation process such as membrane distillation, forward osmosis, or nanofiltration with a conventional activated sludge (CAS) process. Depending on the physicochemical properties of the trace organic contaminants (TrOCs) as well as the selected high retention membrane process, HR-MBR can achieve effective removal (80–99%) of a broad spectrum of TrOCs. An in-depth assessment of the available literature on HR-MBR performance suggests that compared to CAS and conventional MBRs (using micro- or ultra-filtration membrane), aqueous phase removal of TrOCs in HR-MBR is significantly better. Conceptually, longer retention time may significantly improve TrOC biodegradation, but there are insufficient data in the literature to evaluate the extent of TrOC biodegradation improvement by HR-MBR. The accumulation of hardly biodegradable TrOCs within the bioreactor of an HR-MBR system may complicate further treatment and beneficial reuse of sludge. In addition to TrOCs, accumulation of salts gradually increases the salinity in bioreactor and can adversely affect microbial activities. Strategies to mitigate these limitations are discussed. A qualitative framework is proposed to predict the contribution of the different key mechanisms of TrOC removal (i.e., membrane retention, biodegradation, and sorption) in HR-MBR.

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http://hdl.handle.net/10453/131637