Methane production in an anaerobic osmotic membrane bioreactor using forward osmosis: Effect of reverse salt flux

Li, S; Kim, Y; Phuntsho, S; Chekli, L; Shon, HK; Leiknes, TO; Ghaffour, N

Methane production in an anaerobic osmotic membrane bioreactor using forward osmosis: Effect of reverse salt flux

Li, S Kim, Y

Phuntsho, S

Chekli, L

Shon, HK

Leiknes, TO Ghaffour, N

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Publication Type:: Journal Article
Citation:: Bioresource Technology, 2017, 239 pp. 285 - 293
Issue Date:: 2017-01-01

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Field	Value	Language
dc.contributor.author	Li, S	en_US
dc.contributor.author	Kim, Y https://orcid.org/0000-0002-4101-4885	en_US
dc.contributor.author	Phuntsho, S https://orcid.org/0000-0002-3917-3916	en_US
dc.contributor.author	Chekli, L https://orcid.org/0000-0002-9353-943X	en_US
dc.contributor.author	Shon, HK https://orcid.org/0000-0002-3777-7169	en_US
dc.contributor.author	Leiknes, TO	en_US
dc.contributor.author	Ghaffour, N	en_US
dc.date.available	2020-05-25T19:18:14Z
dc.date.issued	2017-01-01	en_US
dc.identifier.citation	Bioresource Technology, 2017, 239 pp. 285 - 293	en_US
dc.identifier.issn	0960-8524	en_US
dc.identifier.uri	http://hdl.handle.net/10453/99726
dc.description.abstract	© 2017 Elsevier Ltd This study investigated the impact of reverse salt flux (RSF) on microbe community and bio-methane production in a simulated fertilizer driven FO-AnMBR system using KCl, KNO3 and KH2PO4 as draw solutes. Results showed that KH2PO4 exhibited the lowest RSF in terms of molar concentration 19.1 mM/(m2.h), while for KCl and KNO3 it was 32.2 and 120.8 mM/(m2.h), respectively. Interestingly, bio-methane production displayed an opposite order with KH2PO4, followed by KCl and KNO3. Pyrosequencing results revealed the presence of different bacterial communities among the tested fertilizers. Bacterial community of sludge exposed to KH2PO4 was very similar to that of DI-water and KCl. However, results with KNO3 were different since the denitrifying bacteria were found to have a higher percentage than the sludge with other fertilizers. This study demonstrated that RSF has a negative effect on bio-methane production, probably by influencing the sludge bacterial community via environment modification.	en_US
dc.relation.ispartof	Bioresource Technology	en_US
dc.relation.isbasedon	10.1016/j.biortech.2017.05.044	en_US
dc.subject.classification	Biotechnology	en_US
dc.subject.mesh	Methane	en_US
dc.subject.mesh	Membranes, Artificial	en_US
dc.subject.mesh	Bioreactors	en_US
dc.subject.mesh	Water Purification	en_US
dc.subject.mesh	Osmosis	en_US
dc.subject.mesh	Waste Water	en_US
dc.title	Methane production in an anaerobic osmotic membrane bioreactor using forward osmosis: Effect of reverse salt flux	en_US
dc.type	Journal Article
utslib.citation.volume	239	en_US
utslib.for	0904 Chemical Engineering	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
pubs.organisational-group	/University of Technology Sydney/Students
utslib.copyright.status	open_access
pubs.publication-status	Published	en_US
pubs.volume	239	en_US

Abstract:

© 2017 Elsevier Ltd This study investigated the impact of reverse salt flux (RSF) on microbe community and bio-methane production in a simulated fertilizer driven FO-AnMBR system using KCl, KNO3 and KH2PO4 as draw solutes. Results showed that KH2PO4 exhibited the lowest RSF in terms of molar concentration 19.1 mM/(m2.h), while for KCl and KNO3 it was 32.2 and 120.8 mM/(m2.h), respectively. Interestingly, bio-methane production displayed an opposite order with KH2PO4, followed by KCl and KNO3. Pyrosequencing results revealed the presence of different bacterial communities among the tested fertilizers. Bacterial community of sludge exposed to KH2PO4 was very similar to that of DI-water and KCl. However, results with KNO3 were different since the denitrifying bacteria were found to have a higher percentage than the sludge with other fertilizers. This study demonstrated that RSF has a negative effect on bio-methane production, probably by influencing the sludge bacterial community via environment modification.

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http://hdl.handle.net/10453/99726