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Conference Paper: Fouling propensity of forward osmosis: Investigation of the slower flux decline phenomenon

TitleFouling propensity of forward osmosis: Investigation of the slower flux decline phenomenon
Authors
Issue Date2010
PublisherIWA Publishing. The Journal's web site is located at http://www.iwaponline.com/wst/default.htm
Citation
Water Science And Technology, 2010, v. 61 n. 4, p. 927-936 How to Cite?
AbstractForward Osmosis (FO) is a membrane process that uses the natural osmotic pressure of a concentrated draw solution to extract pure water from a feed stream. The attraction of the FO process is that it uses dense membranes, while operating at ambient pressure. This means that the FO process could potentially produce high quality water with lower energy consumption, as compared to the other desalination or reclamation processes. As FO does not entail the use of hydraulic pressure, FO has been hypothesized to have lower fouling propensity than pressure driven membrane processes. Membrane fouling has significant impact on the operational sustainability and economics of the process. This study examines the possible contributing factors to the slower flux decline observed in FO experiments based on a combined experimental and modelling approach. It was found that these factors could include low water fluxes, use of hydrophilic and smooth membranes, and the effect of internal concentration polarisation that is inherent of FO. It was also found that the transmission of draw solutes from the draw solution into the feed can have significant effect on FO performance.
Persistent Identifierhttp://hdl.handle.net/10722/185491
ISSN
2015 Impact Factor: 1.064
2015 SCImago Journal Rankings: 0.469
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLay, WCLen_US
dc.contributor.authorChong, THen_US
dc.contributor.authorTang, CYen_US
dc.contributor.authorFane, AGen_US
dc.contributor.authorZhang, Jen_US
dc.contributor.authorLiu, Yen_US
dc.date.accessioned2013-07-30T07:40:15Z-
dc.date.available2013-07-30T07:40:15Z-
dc.date.issued2010en_US
dc.identifier.citationWater Science And Technology, 2010, v. 61 n. 4, p. 927-936en_US
dc.identifier.issn0273-1223en_US
dc.identifier.urihttp://hdl.handle.net/10722/185491-
dc.description.abstractForward Osmosis (FO) is a membrane process that uses the natural osmotic pressure of a concentrated draw solution to extract pure water from a feed stream. The attraction of the FO process is that it uses dense membranes, while operating at ambient pressure. This means that the FO process could potentially produce high quality water with lower energy consumption, as compared to the other desalination or reclamation processes. As FO does not entail the use of hydraulic pressure, FO has been hypothesized to have lower fouling propensity than pressure driven membrane processes. Membrane fouling has significant impact on the operational sustainability and economics of the process. This study examines the possible contributing factors to the slower flux decline observed in FO experiments based on a combined experimental and modelling approach. It was found that these factors could include low water fluxes, use of hydrophilic and smooth membranes, and the effect of internal concentration polarisation that is inherent of FO. It was also found that the transmission of draw solutes from the draw solution into the feed can have significant effect on FO performance.en_US
dc.languageengen_US
dc.publisherIWA Publishing. The Journal's web site is located at http://www.iwaponline.com/wst/default.htmen_US
dc.relation.ispartofWater Science and Technologyen_US
dc.subject.meshEquipment Designen_US
dc.subject.meshMembranes, Artificialen_US
dc.subject.meshOsmosisen_US
dc.subject.meshOsmotic Pressureen_US
dc.subject.meshParticle Sizeen_US
dc.subject.meshPermeabilityen_US
dc.subject.meshSalts - Chemistryen_US
dc.subject.meshTime Factorsen_US
dc.subject.meshWaste Disposal, Fluid - Methodsen_US
dc.subject.meshWater - Chemistryen_US
dc.subject.meshWater Pollutants, Chemical - Isolation & Purificationen_US
dc.subject.meshWater Purification - Methodsen_US
dc.titleFouling propensity of forward osmosis: Investigation of the slower flux decline phenomenonen_US
dc.typeConference_Paperen_US
dc.identifier.emailTang, CY: tangc@hku.hken_US
dc.identifier.authorityTang, CY=rp01765en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.2166/wst.2010.835en_US
dc.identifier.pmid20182071-
dc.identifier.scopuseid_2-s2.0-77950370169en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77950370169&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume61en_US
dc.identifier.issue4en_US
dc.identifier.spage927en_US
dc.identifier.epage936en_US
dc.identifier.isiWOS:000275170400012-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridLay, WCL=25225504600en_US
dc.identifier.scopusauthoridChong, TH=15135067400en_US
dc.identifier.scopusauthoridTang, CY=35489259800en_US
dc.identifier.scopusauthoridFane, AG=35593963600en_US
dc.identifier.scopusauthoridZhang, J=7601342242en_US
dc.identifier.scopusauthoridLiu, Y=7410217127en_US

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