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Article: Change in the fouling propensity of sludge in membrane bioreactors (MBR) in relation to the accumulation of biopolymer clusters

TitleChange in the fouling propensity of sludge in membrane bioreactors (MBR) in relation to the accumulation of biopolymer clusters
Authors
KeywordsActivated sludge process
Biological wastewater treatment
Biopolymer clusters (BPC)
Membrane bioreactor (MBR)
Membrane fouling
Issue Date2011
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/biortech
Citation
Bioresource Technology, 2011, v. 102 n. 7, p. 4718-4725 How to Cite?
AbstractA membrane bioreactor (MBR) and an activated sludge process (ASP) were operated side by side to evaluate the change of sludge supernatant characteristics and the evolution of the sludge fouling propensity. The MBR sludge had a higher organic concentration and more biopolymer clusters (BPC) in the supernatant compared with ASP. BPC increased in both concentration and size in the MBR. The results show that the change in the liquid-phase property had a profound effect on the sludge fouling propensity. MBR operation transformed typical activated sludge to MBR sludge with a higher fouling propensity. Distinct from the ASP, membrane filtration retained soluble microbial products (SMP) within the MBR, and the vast membrane surface provided a unique environment for the transformation of SMP to large size BPC, leading to further sludge deposition on the membrane surface. Thus, membrane filtration is the crucial cause of the inevitable fouling problem in submerged MBRs. © 2011 Elsevier Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/132392
ISSN
2015 Impact Factor: 4.917
2015 SCImago Journal Rankings: 2.303
ISI Accession Number ID
Funding AgencyGrant Number
University of Hong Kong
University Grants Committee (UGC)SEG_HKU10
Research Grants Council (RGC) of the Hong Kong SAR GovernmentHKU7144/E07
Funding Information:

This research was supported by URC funding from the University of Hong Kong, Special Equipment Grant SEG_HKU10 from the University Grants Committee (UGC), and Grant HKU7144/E07 from the Research Grants Council (RGC) of the Hong Kong SAR Government. The technical assistance of Mr. Keith C. H. Wong is greatly appreciated.

References
Grants

 

DC FieldValueLanguage
dc.contributor.authorSun, FYen_HK
dc.contributor.authorWang, XMen_HK
dc.contributor.authorLi, XYen_HK
dc.date.accessioned2011-03-28T09:24:04Z-
dc.date.available2011-03-28T09:24:04Z-
dc.date.issued2011en_HK
dc.identifier.citationBioresource Technology, 2011, v. 102 n. 7, p. 4718-4725en_HK
dc.identifier.issn0960-8524en_HK
dc.identifier.urihttp://hdl.handle.net/10722/132392-
dc.description.abstractA membrane bioreactor (MBR) and an activated sludge process (ASP) were operated side by side to evaluate the change of sludge supernatant characteristics and the evolution of the sludge fouling propensity. The MBR sludge had a higher organic concentration and more biopolymer clusters (BPC) in the supernatant compared with ASP. BPC increased in both concentration and size in the MBR. The results show that the change in the liquid-phase property had a profound effect on the sludge fouling propensity. MBR operation transformed typical activated sludge to MBR sludge with a higher fouling propensity. Distinct from the ASP, membrane filtration retained soluble microbial products (SMP) within the MBR, and the vast membrane surface provided a unique environment for the transformation of SMP to large size BPC, leading to further sludge deposition on the membrane surface. Thus, membrane filtration is the crucial cause of the inevitable fouling problem in submerged MBRs. © 2011 Elsevier Ltd.en_HK
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/biortechen_HK
dc.relation.ispartofBioresource Technologyen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Bioresource Technology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Bioresource Technology, 2011, v. 102 n. 7, p. 4718-4725. DOI: 10.1016/j.biortech.2011.01.048-
dc.subjectActivated sludge processen_HK
dc.subjectBiological wastewater treatmenten_HK
dc.subjectBiopolymer clusters (BPC)en_HK
dc.subjectMembrane bioreactor (MBR)en_HK
dc.subjectMembrane foulingen_HK
dc.subject.meshBiopolymers - analysis-
dc.subject.meshBioreactors-
dc.subject.meshMembranes, Artificial-
dc.subject.meshSewage - chemistry-
dc.subject.meshWaste Disposal, Fluid - methods-
dc.titleChange in the fouling propensity of sludge in membrane bioreactors (MBR) in relation to the accumulation of biopolymer clustersen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0960-8524&volume=102&issue=7&spage=4718&epage=4725&date=2011&atitle=Change+in+the+fouling+propensity+of+sludge+in+membrane+bioreactors+(MBR)+in+relation+to+the+accumulation+of+biopolymer+clusters-
dc.identifier.emailWang, XM: wangxm@hku.hken_HK
dc.identifier.emailLi, XY: xlia@hkucc.hku.hken_HK
dc.identifier.authorityWang, XM=rp01452en_HK
dc.identifier.authorityLi, XY=rp00222en_HK
dc.description.naturepostprinten_US
dc.identifier.doi10.1016/j.biortech.2011.01.048en_HK
dc.identifier.pmid21316942-
dc.identifier.scopuseid_2-s2.0-79951948787en_HK
dc.identifier.hkuros188280-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79951948787&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume102en_HK
dc.identifier.issue7en_HK
dc.identifier.spage4718en_HK
dc.identifier.epage4725en_HK
dc.identifier.eissn1873-2976-
dc.identifier.isiWOS:000288637000018-
dc.publisher.placeNetherlandsen_HK
dc.relation.projectEnvironmental Bio-Nano Interface (EBNI) Characterization System-
dc.identifier.scopusauthoridSun, FY=16064782300en_HK
dc.identifier.scopusauthoridWang, XM=23092524200en_HK
dc.identifier.scopusauthoridLi, XY=26642887900en_HK

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