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Conference Paper: Modeling of the initial deposition of individual particles during the cross-flow membrane filtration

TitleModeling of the initial deposition of individual particles during the cross-flow membrane filtration
Authors
KeywordsBrownian motion
Membrane fouling
Particle deposition modeling
Particle transport trajectory
Polar interfacial interaction
Issue Date2014
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/colsurfa
Citation
The 10th International Symposium on Electrokinetic Phenomena (ELKIN 10th), Tsukuba, Japan, 20-24 May 2012. In Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2014, v. 440, p. 91-100 How to Cite?
AbstractThis study is devoted to the modeling of the deposition of individual particles onto a clean membrane surface in cross-flow filtration systems. Comprehensive force analysis approach is applied, which accounts for the random Brownian force and the polar component of the particle-membrane interactive forces. The inclusion of the polar interactive force is important in that when a hydrophilic membrane is involved, it can easily predominate over the rest of lateral forces in the near-field. The repulsive polar particle-membrane interaction can greatly decrease the stability of the particle on the membrane surface. In the far-field that is about 0.1. μm or farther away from the membrane, the particle transport is primarily dictated by the hydrodynamic lift and drag forces and the Brownian force. In sharp contrast to semi- or non-Brownian particles, the transport trajectory of Brownian particle is hardly definitive. The filtration flux and the cross-flow velocity can influence the particle transport trajectory of all sizes. Nevertheless, the existence of critical flux or critical cross-flow velocity is more evident for non-Brownian particles. Above the critical cross-flow rate or below the critical flux, particle deposition is minimized. Under appropriate operational conditions, a force-balanced level exists in the viscous sub-layer for a particular particle size, which is independent of the initial position of the particle. The model can be expanded further for more complicated water filtration conditions. © 2012 Elsevier B.V.
DescriptionThis journal vol. entitled: The 10th International Symposium on Electrokinetic Phenomena
Persistent Identifierhttp://hdl.handle.net/10722/165763
ISSN
2015 Impact Factor: 2.76
2015 SCImago Journal Rankings: 0.831
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWang, Xen_US
dc.contributor.authorLi, XYen_US
dc.date.accessioned2012-09-20T08:23:07Z-
dc.date.available2012-09-20T08:23:07Z-
dc.date.issued2014en_US
dc.identifier.citationThe 10th International Symposium on Electrokinetic Phenomena (ELKIN 10th), Tsukuba, Japan, 20-24 May 2012. In Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2014, v. 440, p. 91-100en_US
dc.identifier.issn0927-7757-
dc.identifier.urihttp://hdl.handle.net/10722/165763-
dc.descriptionThis journal vol. entitled: The 10th International Symposium on Electrokinetic Phenomena-
dc.description.abstractThis study is devoted to the modeling of the deposition of individual particles onto a clean membrane surface in cross-flow filtration systems. Comprehensive force analysis approach is applied, which accounts for the random Brownian force and the polar component of the particle-membrane interactive forces. The inclusion of the polar interactive force is important in that when a hydrophilic membrane is involved, it can easily predominate over the rest of lateral forces in the near-field. The repulsive polar particle-membrane interaction can greatly decrease the stability of the particle on the membrane surface. In the far-field that is about 0.1. μm or farther away from the membrane, the particle transport is primarily dictated by the hydrodynamic lift and drag forces and the Brownian force. In sharp contrast to semi- or non-Brownian particles, the transport trajectory of Brownian particle is hardly definitive. The filtration flux and the cross-flow velocity can influence the particle transport trajectory of all sizes. Nevertheless, the existence of critical flux or critical cross-flow velocity is more evident for non-Brownian particles. Above the critical cross-flow rate or below the critical flux, particle deposition is minimized. Under appropriate operational conditions, a force-balanced level exists in the viscous sub-layer for a particular particle size, which is independent of the initial position of the particle. The model can be expanded further for more complicated water filtration conditions. © 2012 Elsevier B.V.-
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/colsurfa-
dc.relation.ispartofColloids and Surfaces A: Physicochemical and Engineering Aspectsen_US
dc.subjectBrownian motion-
dc.subjectMembrane fouling-
dc.subjectParticle deposition modeling-
dc.subjectParticle transport trajectory-
dc.subjectPolar interfacial interaction-
dc.titleModeling of the initial deposition of individual particles during the cross-flow membrane filtrationen_US
dc.typeConference_Paperen_US
dc.identifier.emailWang, X: wangxm@hku.hken_US
dc.identifier.emailLi, XY: xlia@hkucc.hku.hken_US
dc.identifier.authorityWang, X=rp01452en_US
dc.identifier.authorityLi, XY=rp00222en_US
dc.identifier.doi10.1016/j.colsurfa.2012.10.033-
dc.identifier.scopuseid_2-s2.0-84889584468-
dc.identifier.hkuros209090en_US
dc.identifier.hkuros236400-
dc.identifier.volume440-
dc.identifier.spage91-
dc.identifier.epage100-
dc.identifier.isiWOS:000329014400014-
dc.publisher.placeNetherlands-
dc.customcontrol.immutablesml 140820-

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