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Article: Effect of substrate structure on the performance of thin-film composite forward osmosis hollow fiber membranes

TitleEffect of substrate structure on the performance of thin-film composite forward osmosis hollow fiber membranes
Authors
KeywordsAnti-Fouling Capability
Fo Hollow Fibers
Non-Ideal Situation
Substrate Structure
Thin-Film Composite
Issue Date2011
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/memsci
Citation
Journal Of Membrane Science, 2011, v. 382 n. 1-2, p. 116-123 How to Cite?
AbstractForward osmosis (FO) membranes have gained increasingly attention due to their potential advantages for various FO-based wastewater treatment, seawater desalination and power generation. In the present study, an attempt was made to systematically investigate the effects of substrate structure on the formation of the selective layer in a two-step preparation - a phase inversion for a hollow fiber substrate followed by interfacial polymerization for the ultra-thin selective layer, and on the FO performance in non-ideal situations, i.e., the feed stream contains foulants.Experimental results revealed that the substrate surface structure is very important for fabricating a RO-like thin film. A substrate with <300 kDa MWCO is preferred to obtain a good semipermeable skin based on current study. It may not be appropriate to use DI water and a low concentration draw solution (i.e., an ideal situation) to evaluate the FO membrane, as the water permeation through the RO-like skin is the rate-determining step, and the effect of the substrate structure cannot be fully reflected in this ideal situation. In addition, the surface structure of the FO membrane facing the feed is critical as it is directly associated with the tendency of FO membrane fouling, and a relatively dense membrane substrate surface is desirable in the membrane orientation of active layer facing draw solution. An ideal FO membrane should also possess anti-fouling capability or less fouling propensity in addition to high water permeability, low salt permeability and minimized structural parameter. © 2011 Elsevier B.V.
Persistent Identifierhttp://hdl.handle.net/10722/185409
ISSN
2015 Impact Factor: 5.557
2015 SCImago Journal Rankings: 2.042
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorShi, Len_US
dc.contributor.authorChou, SRen_US
dc.contributor.authorWang, Ren_US
dc.contributor.authorFang, WXen_US
dc.contributor.authorTang, CYen_US
dc.contributor.authorFane, AGen_US
dc.date.accessioned2013-07-30T07:32:20Z-
dc.date.available2013-07-30T07:32:20Z-
dc.date.issued2011en_US
dc.identifier.citationJournal Of Membrane Science, 2011, v. 382 n. 1-2, p. 116-123en_US
dc.identifier.issn0376-7388en_US
dc.identifier.urihttp://hdl.handle.net/10722/185409-
dc.description.abstractForward osmosis (FO) membranes have gained increasingly attention due to their potential advantages for various FO-based wastewater treatment, seawater desalination and power generation. In the present study, an attempt was made to systematically investigate the effects of substrate structure on the formation of the selective layer in a two-step preparation - a phase inversion for a hollow fiber substrate followed by interfacial polymerization for the ultra-thin selective layer, and on the FO performance in non-ideal situations, i.e., the feed stream contains foulants.Experimental results revealed that the substrate surface structure is very important for fabricating a RO-like thin film. A substrate with <300 kDa MWCO is preferred to obtain a good semipermeable skin based on current study. It may not be appropriate to use DI water and a low concentration draw solution (i.e., an ideal situation) to evaluate the FO membrane, as the water permeation through the RO-like skin is the rate-determining step, and the effect of the substrate structure cannot be fully reflected in this ideal situation. In addition, the surface structure of the FO membrane facing the feed is critical as it is directly associated with the tendency of FO membrane fouling, and a relatively dense membrane substrate surface is desirable in the membrane orientation of active layer facing draw solution. An ideal FO membrane should also possess anti-fouling capability or less fouling propensity in addition to high water permeability, low salt permeability and minimized structural parameter. © 2011 Elsevier B.V.en_US
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/memscien_US
dc.relation.ispartofJournal of Membrane Scienceen_US
dc.subjectAnti-Fouling Capabilityen_US
dc.subjectFo Hollow Fibersen_US
dc.subjectNon-Ideal Situationen_US
dc.subjectSubstrate Structureen_US
dc.subjectThin-Film Compositeen_US
dc.titleEffect of substrate structure on the performance of thin-film composite forward osmosis hollow fiber membranesen_US
dc.typeArticleen_US
dc.identifier.emailTang, CY: tangc@hku.hken_US
dc.identifier.authorityTang, CY=rp01765en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.memsci.2011.07.045en_US
dc.identifier.scopuseid_2-s2.0-80052696808en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-80052696808&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume382en_US
dc.identifier.issue1-2en_US
dc.identifier.spage116en_US
dc.identifier.epage123en_US
dc.identifier.isiWOS:000295503800012-
dc.publisher.placeNetherlandsen_US
dc.identifier.scopusauthoridShi, L=36079938000en_US
dc.identifier.scopusauthoridChou, SR=36019076000en_US
dc.identifier.scopusauthoridWang, R=35081334000en_US
dc.identifier.scopusauthoridFang, WX=53881170600en_US
dc.identifier.scopusauthoridTang, CY=35489259800en_US
dc.identifier.scopusauthoridFane, AG=35593963600en_US

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