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Article: Modelling of membrane fouling in a submerged membrane bioreactor

TitleModelling of membrane fouling in a submerged membrane bioreactor
Authors
KeywordsBiological wastewater treatment
Filtration resistance
Membrane bioreactor (MBR)
Membrane fouling
Numerical model
Sludge cake
Issue Date2006
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/memsci
Citation
Journal Of Membrane Science, 2006, v. 278 n. 1-2, p. 151-161 How to Cite?
AbstractA mathematical model was developed to model membrane fouling in a submerged membrane bioreactor (SMBR) used for wastewater treatment and reclamation. The sectional technique was employed to account for the uneven distribution of the aeration turbulent shear intensity and the fouling material coverage on the membrane surface. The dynamics of the biomass attachment to and detachment from the membrane in relation to the filtration and aeration turbulence were considered in the model formation. The fouling components of pore clogging, sludge cake growth, and temporal sludge film coverage were included in the calculation of the total membrane fouling resistance. With this new model, membrane fouling under different SMBR operational conditions can be successfully simulated, and the influences of a number of process variables on fouling development can be well quantified. The simulation results demonstrate that filtration flux is the most significant factor that causes sludge cake deposition and fouling problems, followed by sludge stickiness and sludge concentration, and that aeration is important for fouling control. Membrane fouling due to sludge cake accumulation can be minimized in an SMBR by using a lower sludge concentration, enhancing the aeration rate, and reducing the filtration flux. The results of the numerical simulations compare fairly well with the experimental results that were obtained with a laboratory-scale SMBR in this study, which validates the applicability of the new fouling model. © 2005 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/70951
ISSN
2015 Impact Factor: 5.557
2015 SCImago Journal Rankings: 2.042
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLi, Xyen_HK
dc.contributor.authorWang, Xmen_HK
dc.date.accessioned2010-09-06T06:27:34Z-
dc.date.available2010-09-06T06:27:34Z-
dc.date.issued2006en_HK
dc.identifier.citationJournal Of Membrane Science, 2006, v. 278 n. 1-2, p. 151-161en_HK
dc.identifier.issn0376-7388en_HK
dc.identifier.urihttp://hdl.handle.net/10722/70951-
dc.description.abstractA mathematical model was developed to model membrane fouling in a submerged membrane bioreactor (SMBR) used for wastewater treatment and reclamation. The sectional technique was employed to account for the uneven distribution of the aeration turbulent shear intensity and the fouling material coverage on the membrane surface. The dynamics of the biomass attachment to and detachment from the membrane in relation to the filtration and aeration turbulence were considered in the model formation. The fouling components of pore clogging, sludge cake growth, and temporal sludge film coverage were included in the calculation of the total membrane fouling resistance. With this new model, membrane fouling under different SMBR operational conditions can be successfully simulated, and the influences of a number of process variables on fouling development can be well quantified. The simulation results demonstrate that filtration flux is the most significant factor that causes sludge cake deposition and fouling problems, followed by sludge stickiness and sludge concentration, and that aeration is important for fouling control. Membrane fouling due to sludge cake accumulation can be minimized in an SMBR by using a lower sludge concentration, enhancing the aeration rate, and reducing the filtration flux. The results of the numerical simulations compare fairly well with the experimental results that were obtained with a laboratory-scale SMBR in this study, which validates the applicability of the new fouling model. © 2005 Elsevier B.V. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/memscien_HK
dc.relation.ispartofJournal of Membrane Scienceen_HK
dc.rightsJournal of Membrane Science. Copyright © Elsevier BV.en_HK
dc.subjectBiological wastewater treatmenten_HK
dc.subjectFiltration resistanceen_HK
dc.subjectMembrane bioreactor (MBR)en_HK
dc.subjectMembrane foulingen_HK
dc.subjectNumerical modelen_HK
dc.subjectSludge cakeen_HK
dc.titleModelling of membrane fouling in a submerged membrane bioreactoren_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0376-7388&volume=278&spage=151&epage=161&date=2006&atitle=Modelling+of+membrane+fouling+in+a+submerged+membrane+bioreactoren_HK
dc.identifier.emailLi, Xy: xlia@hkucc.hku.hken_HK
dc.identifier.emailWang, Xm: wangxm@hku.hken_HK
dc.identifier.authorityLi, Xy=rp00222en_HK
dc.identifier.authorityWang, Xm=rp01452en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.memsci.2005.10.051en_HK
dc.identifier.scopuseid_2-s2.0-33646787098en_HK
dc.identifier.hkuros125586en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33646787098&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume278en_HK
dc.identifier.issue1-2en_HK
dc.identifier.spage151en_HK
dc.identifier.epage161en_HK
dc.identifier.isiWOS:000238409300017-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridLi, Xy=26642887900en_HK
dc.identifier.scopusauthoridWang, Xm=23092524200en_HK

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