Simultaneous nitrification-denitrification using baffled osmotic membrane bioreactor-microfiltration hybrid system at different oxic-anoxic conditions for wastewater treatment.

Pathak, N; Phuntsho, S; Tran, VH; Johir, MAH; Ghaffour, N; Leiknes, T; Fujioka, T; Shon, HK

Simultaneous nitrification-denitrification using baffled osmotic membrane bioreactor-microfiltration hybrid system at different oxic-anoxic conditions for wastewater treatment.

Pathak, N Phuntsho, S

Tran, VH Johir, MAH Ghaffour, N Leiknes, T Fujioka, T Shon, HK

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Publisher:: ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
Publication Type:: Journal Article
Citation:: Journal of environmental management, 2020, 253
Issue Date:: 2020-01

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Field	Value	Language
dc.contributor.author	Pathak, N
dc.contributor.author	Phuntsho, S https://orcid.org/0000-0002-3917-3916
dc.contributor.author	Tran, VH
dc.contributor.author	Johir, MAH
dc.contributor.author	Ghaffour, N
dc.contributor.author	Leiknes, T
dc.contributor.author	Fujioka, T
dc.contributor.author	Shon, HK
dc.date.accessioned	2021-03-15T01:53:47Z
dc.date.available	2019-10-05
dc.date.available	2021-03-15T01:53:47Z
dc.date.issued	2020-01
dc.identifier.citation	Journal of environmental management, 2020, 253
dc.identifier.issn	0301-4797
dc.identifier.issn	1095-8630
dc.identifier.uri	http://hdl.handle.net/10453/147133
dc.description.abstract	The efficacy of a baffled osmotic membrane bioreactor-microfiltration (OMBR-MF) hybrid system equipped with thin film forward osmosis membrane for wastewater treatment was evaluated at laboratory scale. The novel OMBR-MF hybrid system involved baffles, that separate oxic and anoxic zones in the aerobic reactor for simultaneous nitrification and denitrification (SND), and a bioreactor comprised of thin film composite-forward osmosis (TFC-FO) and polyether sulfone-microfiltration (PES-MF) membranes. The evaluation was conducted under four different oxic-anoxic cycle patterns. Changes in flux, salinity build-up, and microbial activity (e.g., extracellular polymeric substances (EPS) were assessed. Over the course of a 34 d test, the OMBR-MF hybrid system achieved high removal of total organic carbon (TOC) (86-92%), total nitrogen (TN) (63-76%), and PO4-P (57-63%). The oxic-anoxic cycle time of 0.5-1.5 h was identified to be the best operating condition. Incorporation of MF membrane effectively alleviated salinity build-up in the reactor, allowing stable system operation.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
dc.relation.ispartof	Journal of environmental management
dc.relation.isbasedon	10.1016/j.jenvman.2019.109685
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Environmental Sciences
dc.subject.mesh	Bioreactors
dc.subject.mesh	Denitrification
dc.subject.mesh	Membranes, Artificial
dc.subject.mesh	Nitrification
dc.subject.mesh	Nitrogen
dc.subject.mesh	Osmosis
dc.subject.mesh	Waste Water
dc.subject.mesh	Water Purification
dc.subject.mesh	Nitrogen
dc.subject.mesh	Membranes, Artificial
dc.subject.mesh	Bioreactors
dc.subject.mesh	Water Purification
dc.subject.mesh	Osmosis
dc.subject.mesh	Denitrification
dc.subject.mesh	Nitrification
dc.subject.mesh	Waste Water
dc.subject.mesh	Bioreactors
dc.subject.mesh	Denitrification
dc.subject.mesh	Membranes, Artificial
dc.subject.mesh	Nitrification
dc.subject.mesh	Nitrogen
dc.subject.mesh	Osmosis
dc.subject.mesh	Waste Water
dc.subject.mesh	Water Purification
dc.title	Simultaneous nitrification-denitrification using baffled osmotic membrane bioreactor-microfiltration hybrid system at different oxic-anoxic conditions for wastewater treatment.
dc.type	Journal Article
utslib.citation.volume	253
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	*
pubs.consider-herdc	false
dc.date.updated	2021-03-15T01:53:44Z
pubs.publication-status	Published
pubs.volume	253

Abstract:

The efficacy of a baffled osmotic membrane bioreactor-microfiltration (OMBR-MF) hybrid system equipped with thin film forward osmosis membrane for wastewater treatment was evaluated at laboratory scale. The novel OMBR-MF hybrid system involved baffles, that separate oxic and anoxic zones in the aerobic reactor for simultaneous nitrification and denitrification (SND), and a bioreactor comprised of thin film composite-forward osmosis (TFC-FO) and polyether sulfone-microfiltration (PES-MF) membranes. The evaluation was conducted under four different oxic-anoxic cycle patterns. Changes in flux, salinity build-up, and microbial activity (e.g., extracellular polymeric substances (EPS) were assessed. Over the course of a 34 d test, the OMBR-MF hybrid system achieved high removal of total organic carbon (TOC) (86-92%), total nitrogen (TN) (63-76%), and PO4-P (57-63%). The oxic-anoxic cycle time of 0.5-1.5 h was identified to be the best operating condition. Incorporation of MF membrane effectively alleviated salinity build-up in the reactor, allowing stable system operation.

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http://hdl.handle.net/10453/147133