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Article: Factors affecting flux performance of forward osmosis systems

TitleFactors affecting flux performance of forward osmosis systems
Authors
KeywordsFlux
Forward Osmosis (Fo)
Fouling
Osmotic Membrane Bioreactor (Ombr)
Performance
Recovery
Issue Date2012
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/memsci
Citation
Journal Of Membrane Science, 2012, v. 394-395, p. 151-168 How to Cite?
AbstractThe performance of a forward osmosis (FO) system may be characterised by the assessment parameters: FO-RO flux ratio (J w/J w(RO)), apparent FO water permeability (J w/(π ds-π ml)), and the newly developed flux efficiency factor (J w,ob/J w,re). The former two parameters offer information on extent of internal concentration polarisation and driving force utilisation, respectively. The J w,ob/J w,re factor has practical relevance, and reveals the inevitable trade-off between flux and recovery (φ) for a FO system. The derived J w,ob/J w,re factors corresponded well to experimental observations. High water permeability, low salt-to-water permeability ratio, and large mass transfer coefficient improve the performance of a FO system, but these may also be influenced by operational and fouling effects, such as draw solute transmission, fouling resistance and cake-enhanced concentration polarisation. It was shown that membrane properties also play a significant role in fouling behaviour. Fouling amelioration factors include aeration and osmotic backwash. A thin-film composite membrane showed potential for FO application with favourable intrinsic transport parameters. It was demonstrated that a FO system could achieve stable water production with both relatively high flux efficiency (J w,ob/J w,re=0.8) and high recovery (φ=95.8%), which attested to the technology potential. © 2012 Elsevier B.V.
Persistent Identifierhttp://hdl.handle.net/10722/185423
ISSN
2015 Impact Factor: 5.557
2015 SCImago Journal Rankings: 2.042
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLay, WCLen_US
dc.contributor.authorZhang, Jen_US
dc.contributor.authorTang, Cen_US
dc.contributor.authorWang, Ren_US
dc.contributor.authorLiu, Yen_US
dc.contributor.authorFane, AGen_US
dc.date.accessioned2013-07-30T07:32:25Z-
dc.date.available2013-07-30T07:32:25Z-
dc.date.issued2012en_US
dc.identifier.citationJournal Of Membrane Science, 2012, v. 394-395, p. 151-168en_US
dc.identifier.issn0376-7388en_US
dc.identifier.urihttp://hdl.handle.net/10722/185423-
dc.description.abstractThe performance of a forward osmosis (FO) system may be characterised by the assessment parameters: FO-RO flux ratio (J w/J w(RO)), apparent FO water permeability (J w/(π ds-π ml)), and the newly developed flux efficiency factor (J w,ob/J w,re). The former two parameters offer information on extent of internal concentration polarisation and driving force utilisation, respectively. The J w,ob/J w,re factor has practical relevance, and reveals the inevitable trade-off between flux and recovery (φ) for a FO system. The derived J w,ob/J w,re factors corresponded well to experimental observations. High water permeability, low salt-to-water permeability ratio, and large mass transfer coefficient improve the performance of a FO system, but these may also be influenced by operational and fouling effects, such as draw solute transmission, fouling resistance and cake-enhanced concentration polarisation. It was shown that membrane properties also play a significant role in fouling behaviour. Fouling amelioration factors include aeration and osmotic backwash. A thin-film composite membrane showed potential for FO application with favourable intrinsic transport parameters. It was demonstrated that a FO system could achieve stable water production with both relatively high flux efficiency (J w,ob/J w,re=0.8) and high recovery (φ=95.8%), which attested to the technology potential. © 2012 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.subjectFluxen_US
dc.subjectForward Osmosis (Fo)en_US
dc.subjectFoulingen_US
dc.subjectOsmotic Membrane Bioreactor (Ombr)en_US
dc.subjectPerformanceen_US
dc.subjectRecoveryen_US
dc.titleFactors affecting flux performance of forward osmosis systemsen_US
dc.typeArticleen_US
dc.identifier.emailTang, C: tangc@hku.hken_US
dc.identifier.authorityTang, C=rp01765en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.memsci.2011.12.035en_US
dc.identifier.scopuseid_2-s2.0-84862784572en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-84862784572&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume394-395en_US
dc.identifier.spage151en_US
dc.identifier.epage168en_US
dc.identifier.isiWOS:000300935300013-
dc.publisher.placeNetherlandsen_US
dc.identifier.scopusauthoridLay, WCL=25225504600en_US
dc.identifier.scopusauthoridZhang, J=14010227000en_US
dc.identifier.scopusauthoridTang, C=35489259800en_US
dc.identifier.scopusauthoridWang, R=7405339682en_US
dc.identifier.scopusauthoridLiu, Y=7410217127en_US
dc.identifier.scopusauthoridFane, AG=55132709000en_US

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