Long-term effect on membrane fouling in a new membrane bioreactor as a pretreatment to seawater desalination

Jeong, S; Rice, SA; Vigneswaran, S

Long-term effect on membrane fouling in a new membrane bioreactor as a pretreatment to seawater desalination

Jeong, S

Rice, SA

Vigneswaran, S

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Publication Type:: Journal Article
Citation:: Bioresource Technology, 2014, 165 (C), pp. 60 - 68
Issue Date:: 2014-01-01

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Field	Value	Language
dc.contributor.author	Jeong, S https://orcid.org/0000-0001-8995-3497	en_US
dc.contributor.author	Rice, SA https://orcid.org/0000-0002-9486-2343	en_US
dc.contributor.author	Vigneswaran, S https://orcid.org/0000-0002-8117-4322	en_US
dc.date.available	2014-03-06	en_US
dc.date.issued	2014-01-01	en_US
dc.identifier.citation	Bioresource Technology, 2014, 165 (C), pp. 60 - 68	en_US
dc.identifier.issn	0960-8524	en_US
dc.identifier.uri	http://hdl.handle.net/10453/33054
dc.description.abstract	© 2014 Elsevier Ltd. Submerged membrane adsorption bio-reactors (SMABR) were investigated as a new pretreatment for seawater reverse osmosis (SWRO) desalination. They were tested with different doses of powder activated carbon (PAC) on-site for a long-term. The biofouling on the membrane was assessed in terms of DNA (cells) and polysaccharide distribution. MBR without PAC addition resulted in severe fouling on membrane. When PAC is added in the MBR, PAC could reduce the organic fouling. Hence the biofilm formation on membrane was reduced without any membrane damage. PAC also helped to remove low molecular weight (LMW) organics responsible for biofouling of RO membrane. A linear correlation between assimilable organic carbon (AOC) and LMW organics was observed. A small amount of PAC (2.4-8.0g of PAC/m3 of seawater) was sufficient to reduce biofouling. It indicated that SMABR is an environmentally-friendly biological pretreatment to reduce biofouling for SWRO.	en_US
dc.relation.ispartof	Bioresource Technology	en_US
dc.relation.isbasedon	10.1016/j.biortech.2014.03.098	en_US
dc.subject.classification	Biotechnology	en_US
dc.subject.mesh	Biofilms	en_US
dc.subject.mesh	Carbon	en_US
dc.subject.mesh	Organic Chemicals	en_US
dc.subject.mesh	Humic Substances	en_US
dc.subject.mesh	Biopolymers	en_US
dc.subject.mesh	DNA	en_US
dc.subject.mesh	Adenosine Triphosphate	en_US
dc.subject.mesh	Membranes, Artificial	en_US
dc.subject.mesh	Filtration	en_US
dc.subject.mesh	Bioreactors	en_US
dc.subject.mesh	Seawater	en_US
dc.subject.mesh	Water Purification	en_US
dc.subject.mesh	Adsorption	en_US
dc.subject.mesh	Molecular Weight	en_US
dc.subject.mesh	Pressure	en_US
dc.subject.mesh	Time Factors	en_US
dc.subject.mesh	Salinity	en_US
dc.subject.mesh	Biofouling	en_US
dc.title	Long-term effect on membrane fouling in a new membrane bioreactor as a pretreatment to seawater desalination	en_US
dc.type	Journal Article
utslib.citation.volume	C	en_US
utslib.citation.volume	165	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/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
pubs.organisational-group	/University of Technology Sydney/Strength - ithree - Institute of Infection, Immunity and Innovation
utslib.copyright.status	closed_access
pubs.issue	C	en_US
pubs.publication-status	Published	en_US
pubs.volume	165	en_US

Abstract:

© 2014 Elsevier Ltd. Submerged membrane adsorption bio-reactors (SMABR) were investigated as a new pretreatment for seawater reverse osmosis (SWRO) desalination. They were tested with different doses of powder activated carbon (PAC) on-site for a long-term. The biofouling on the membrane was assessed in terms of DNA (cells) and polysaccharide distribution. MBR without PAC addition resulted in severe fouling on membrane. When PAC is added in the MBR, PAC could reduce the organic fouling. Hence the biofilm formation on membrane was reduced without any membrane damage. PAC also helped to remove low molecular weight (LMW) organics responsible for biofouling of RO membrane. A linear correlation between assimilable organic carbon (AOC) and LMW organics was observed. A small amount of PAC (2.4-8.0g of PAC/m3 of seawater) was sufficient to reduce biofouling. It indicated that SMABR is an environmentally-friendly biological pretreatment to reduce biofouling for SWRO.

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http://hdl.handle.net/10453/33054