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Article: Analysis of Salt Accumulation in a Forward Osmosis System

TitleAnalysis of Salt Accumulation in a Forward Osmosis System
Authors
KeywordsDraw Solute Transmission
Forward Osmosis (Fo)
Fouling And Secondary Layer
Osmotic Membrane Bioreactor (Ombr)
Salt Accumulation
Issue Date2012
PublisherTaylor & Francis Inc. The Journal's web site is located at http://www.tandf.co.uk/journals/titles/01496395.asp
Citation
Separation Science And Technology (Philadelphia), 2012, v. 47 n. 13, p. 1837-1848 How to Cite?
AbstractAn important issue concerning performance of forward osmosis (FO) systems is salt accumulation in the retentate. This occurs due to the highly retentive FO membrane and reverse diffusion of draw solutes. In this study, experimental data from an osmotic membrane bioreactor (OMBR), which epitomizes a challenging application for FO, was analyzed to investigate longer term effects of the above issue. It was found that salt accumulation is controlled by three factors: membrane, influent, and process. The role of the membrane is application-dependent and significant only when influent osmotic pressure is smaller or in the same order of magnitude as the salt to water permeability ratio (B/A). The study also shows that an experimental duration of 3 × solids retention time (SRT) is necessary for adequate study of salt accumulation in FO systems. Analysis of the B/A ratio provided fundamental information into system behavior. A reducing B/A could be associated with the formation of a mild secondary foulant layer, whereas an increasing B/A was observed for more severe fouling cases and indicated further flux reducing mechanisms. The study makes clear that knowledge of factors affecting salt accumulation is essential for optimization of FO systems. © 2012 Copyright Taylor and Francis Group, LLC.
Persistent Identifierhttp://hdl.handle.net/10722/185429
ISSN
2015 Impact Factor: 1.083
2015 SCImago Journal Rankings: 0.385
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.accessioned2013-07-30T07:32:28Z-
dc.date.available2013-07-30T07:32:28Z-
dc.date.issued2012en_US
dc.identifier.citationSeparation Science And Technology (Philadelphia), 2012, v. 47 n. 13, p. 1837-1848en_US
dc.identifier.issn0149-6395en_US
dc.identifier.urihttp://hdl.handle.net/10722/185429-
dc.description.abstractAn important issue concerning performance of forward osmosis (FO) systems is salt accumulation in the retentate. This occurs due to the highly retentive FO membrane and reverse diffusion of draw solutes. In this study, experimental data from an osmotic membrane bioreactor (OMBR), which epitomizes a challenging application for FO, was analyzed to investigate longer term effects of the above issue. It was found that salt accumulation is controlled by three factors: membrane, influent, and process. The role of the membrane is application-dependent and significant only when influent osmotic pressure is smaller or in the same order of magnitude as the salt to water permeability ratio (B/A). The study also shows that an experimental duration of 3 × solids retention time (SRT) is necessary for adequate study of salt accumulation in FO systems. Analysis of the B/A ratio provided fundamental information into system behavior. A reducing B/A could be associated with the formation of a mild secondary foulant layer, whereas an increasing B/A was observed for more severe fouling cases and indicated further flux reducing mechanisms. The study makes clear that knowledge of factors affecting salt accumulation is essential for optimization of FO systems. © 2012 Copyright Taylor and Francis Group, LLC.en_US
dc.languageengen_US
dc.publisherTaylor & Francis Inc. The Journal's web site is located at http://www.tandf.co.uk/journals/titles/01496395.aspen_US
dc.relation.ispartofSeparation Science and Technology (Philadelphia)en_US
dc.subjectDraw Solute Transmissionen_US
dc.subjectForward Osmosis (Fo)en_US
dc.subjectFouling And Secondary Layeren_US
dc.subjectOsmotic Membrane Bioreactor (Ombr)en_US
dc.subjectSalt Accumulationen_US
dc.titleAnalysis of Salt Accumulation in a Forward Osmosis Systemen_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.doi10.1080/01496395.2012.692423en_US
dc.identifier.scopuseid_2-s2.0-84865821971en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-84865821971&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume47en_US
dc.identifier.issue13en_US
dc.identifier.spage1837en_US
dc.identifier.epage1848en_US
dc.identifier.isiWOS:000308301800001-
dc.publisher.placeUnited Statesen_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=24329677300en_US
dc.identifier.scopusauthoridFane, AG=55132709000en_US

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