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Article: Seawater pretreatment with an NF-like forward osmotic membrane: Membrane preparation, characterization and performance comparison with RO-like membranes

TitleSeawater pretreatment with an NF-like forward osmotic membrane: Membrane preparation, characterization and performance comparison with RO-like membranes
Authors
KeywordsNanofiltration-like forward osmosis
Reverse osmotic-like forward osmotic
Desalination pretreatment
Interfacial polymerization
Issue Date2019
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/desal
Citation
Desalination, 2019, v. 470, article no. 114115 How to Cite?
AbstractA nanofiltration-like (NF-like) forward osmosis (FO) membrane was prepared by interfacial polymerization and applied for seawater pretreatment. The prepared NF-like FO membrane shows much higher water permeability and higher divalent salt to monovalent salt selectivity compared to a commercial reverse-osmotic-like (RO-like) FO membrane. The comparison between NF-like FO membrane and RO-like FO membrane in FO process was systematically investigated by using an antiscalent (sodium polyacrylate, PAANa) solution as draw solution. Both NF-like and RO-like FO process showed high rejection of alginate and sulfate. However, the water flux and monovalent salt (NaCl) passage in NF-like FO process were much higher, which enables the NF-like FO membrane to be a better candidate for pretreating seawater. The findings provide new insights on the design and preparation of FO membranes for seawater pretreatment.
Persistent Identifierhttp://hdl.handle.net/10722/284485
ISSN
2019 Impact Factor: 7.098
2015 SCImago Journal Rankings: 1.549
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorYao, Z-
dc.contributor.authorPeng, LE-
dc.contributor.authorGuo, H-
dc.contributor.authorQing, W-
dc.contributor.authorMei, Y-
dc.contributor.authorTang, CY-
dc.date.accessioned2020-08-07T08:58:19Z-
dc.date.available2020-08-07T08:58:19Z-
dc.date.issued2019-
dc.identifier.citationDesalination, 2019, v. 470, article no. 114115-
dc.identifier.issn0011-9164-
dc.identifier.urihttp://hdl.handle.net/10722/284485-
dc.description.abstractA nanofiltration-like (NF-like) forward osmosis (FO) membrane was prepared by interfacial polymerization and applied for seawater pretreatment. The prepared NF-like FO membrane shows much higher water permeability and higher divalent salt to monovalent salt selectivity compared to a commercial reverse-osmotic-like (RO-like) FO membrane. The comparison between NF-like FO membrane and RO-like FO membrane in FO process was systematically investigated by using an antiscalent (sodium polyacrylate, PAANa) solution as draw solution. Both NF-like and RO-like FO process showed high rejection of alginate and sulfate. However, the water flux and monovalent salt (NaCl) passage in NF-like FO process were much higher, which enables the NF-like FO membrane to be a better candidate for pretreating seawater. The findings provide new insights on the design and preparation of FO membranes for seawater pretreatment.-
dc.languageeng-
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/desal-
dc.relation.ispartofDesalination-
dc.subjectNanofiltration-like forward osmosis-
dc.subjectReverse osmotic-like forward osmotic-
dc.subjectDesalination pretreatment-
dc.subjectInterfacial polymerization-
dc.titleSeawater pretreatment with an NF-like forward osmotic membrane: Membrane preparation, characterization and performance comparison with RO-like membranes-
dc.typeArticle-
dc.identifier.emailGuo, H: guohao7@hku.hk-
dc.identifier.emailTang, CY: tangc@hku.hk-
dc.identifier.authorityTang, CY=rp01765-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.desal.2019.114115-
dc.identifier.scopuseid_2-s2.0-85071512949-
dc.identifier.hkuros312230-
dc.identifier.volume470-
dc.identifier.spagearticle no. 114115-
dc.identifier.epagearticle no. 114115-
dc.identifier.isiWOS:000488314400008-
dc.publisher.placeNetherlands-
dc.identifier.issnl0011-9164-

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