A comparison study on membrane fouling in a sponge-submerged membrane bioreactor and a conventional membrane bioreactor

Deng, L; Guo, W; Ngo, HH; Zhang, J; Liang, S; Xia, S; Zhang, Z; Li, J

A comparison study on membrane fouling in a sponge-submerged membrane bioreactor and a conventional membrane bioreactor

Deng, L Guo, W Ngo, HH Zhang, J Liang, S Xia, S Zhang, Z Li, J

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Publication Type:: Journal Article
Citation:: Bioresource Technology, 2014, 165 (C), pp. 69 - 74
Issue Date:: 2014-01-01

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Field	Value	Language
dc.contributor.author	Deng, L	en_US
dc.contributor.author	Guo, W	en_US
dc.contributor.author	Ngo, HH	en_US
dc.contributor.author	Zhang, J	en_US
dc.contributor.author	Liang, S	en_US
dc.contributor.author	Xia, S	en_US
dc.contributor.author	Zhang, Z	en_US
dc.contributor.author	Li, J	en_US
dc.date.issued	2014-01-01	en_US
dc.identifier.citation	Bioresource Technology, 2014, 165 (C), pp. 69 - 74	en_US
dc.identifier.issn	0960-8524	en_US
dc.identifier.uri	http://hdl.handle.net/10453/59204
dc.description.abstract	© 2014 Elsevier Ltd. This study compared membrane fouling in a sponge-submerged membrane bioreactor (SSMBR) and a conventional membrane bioreactor (CMBR) based on sludge properties when treating synthetic domestic wastewater. In the CMBR, soluble microbial products (SMP) in activated sludge were a major contributor for initial membrane fouling and presented higher concentration in membrane cake layer. Afterwards, membrane fouling was mainly governed by bound extracellular polymeric substances (EPS) in activated sludge, containing lower proteins but significantly higher polysaccharides. Sponge addition could prevent cake formation on membrane surface and pore blocking inside membrane, thereby alleviating membrane fouling. The SSMBR exhibited not only less growth of the biomass and filamentous bacteria, but also lower cake layer and pore blocking resistance due to lower bound EPS concentrations in activated sludge. Less membrane fouling in SSMBR were also attributed to larger particle size, higher zeta potential and relative hydrophobicity of sludge flocs.	en_US
dc.relation.ispartof	Bioresource Technology	en_US
dc.relation.isbasedon	10.1016/j.biortech.2014.02.111	en_US
dc.subject.classification	Biotechnology	en_US
dc.title	A comparison study on membrane fouling in a sponge-submerged membrane bioreactor and a conventional membrane bioreactor	en_US
dc.type	Journal Article
utslib.citation.volume	C	en_US
utslib.citation.volume	165	en_US
utslib.for	MD Multidisciplinary	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.declined	2016-11-02T15:09:36.222+1100
pubs.deleted	2016-11-02T15:09:36.222+1100
pubs.issue	C	en_US
pubs.publication-status	Published	en_US
pubs.volume	165	en_US

Abstract:

© 2014 Elsevier Ltd. This study compared membrane fouling in a sponge-submerged membrane bioreactor (SSMBR) and a conventional membrane bioreactor (CMBR) based on sludge properties when treating synthetic domestic wastewater. In the CMBR, soluble microbial products (SMP) in activated sludge were a major contributor for initial membrane fouling and presented higher concentration in membrane cake layer. Afterwards, membrane fouling was mainly governed by bound extracellular polymeric substances (EPS) in activated sludge, containing lower proteins but significantly higher polysaccharides. Sponge addition could prevent cake formation on membrane surface and pore blocking inside membrane, thereby alleviating membrane fouling. The SSMBR exhibited not only less growth of the biomass and filamentous bacteria, but also lower cake layer and pore blocking resistance due to lower bound EPS concentrations in activated sludge. Less membrane fouling in SSMBR were also attributed to larger particle size, higher zeta potential and relative hydrophobicity of sludge flocs.

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http://hdl.handle.net/10453/59204