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dc.contributor.authorHuang, Chihpinen_US
dc.contributor.authorLin, Jr-Linen_US
dc.contributor.authorLee, Wen-Shanen_US
dc.contributor.authorPan, Jill R.en_US
dc.contributor.authorZhao, Bingqingen_US
dc.date.accessioned2014-12-08T15:11:55Z-
dc.date.available2014-12-08T15:11:55Z-
dc.date.issued2011-03-20en_US
dc.identifier.issn0927-7757en_US
dc.identifier.urihttp://dx.doi.org/10.1016/j.colsurfa.2011.01.054en_US
dc.identifier.urihttp://hdl.handle.net/11536/9136-
dc.description.abstractCoagulation is an effective pre-treatment process in membrane filtration for recycling spent filter backwash water (SFBW). To optimize the operation of the coagulation/filtration process for SFBW recycling, it is important to understand the critical role of coagulation mechanism on membrane filtration. In this study, SFBW samples were coagulated with polyaluminum chloride (PACI), followed by a dead-end micro-filtration (MF), and the mean permeate flux and permeate quality were determined. The results showed that pre-coagulation improved the flux decline and the degree of the improvement was closely related to coagulation mechanisms. The permeate flux was enhanced most effectively by precipitation charge neutralization (PCN) coagulation, followed by charge neutralization and then sweep flocculation. Close examination of cake properties indicated that the reduced cake resistance (R(c)) was subjected to the coagulated SFBW flocs in response to different coagulation mechanism. Smaller flocs, induced by PCN, were more compact and stronger, forming less compressible cake, which facilitated membrane filtration, while slower membrane filtration was observed when more compressible cake formed from larger flocs of looser and weaker structure. Coagulation mechanism also governed the size distribution of SFBW floc, which is strongly related to the subsequent cake compressibility as well as membrane permeability in membrane filtration. (C) 2011 Elsevier B.V. All rights reserved.en_US
dc.language.isoen_USen_US
dc.subjectMicro-filtrationen_US
dc.subjectCoagulationen_US
dc.subjectMembrane fluxen_US
dc.subjectSpent filter backwash wateren_US
dc.titleEffect of coagulation mechanism on membrane permeability in coagulation-assisted microfiltration for spent filter backwash water recyclingen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/j.colsurfa.2011.01.054en_US
dc.identifier.journalCOLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTSen_US
dc.citation.volume378en_US
dc.citation.issue1-3en_US
dc.citation.spage72en_US
dc.citation.epage78en_US
dc.contributor.department環境工程研究所zh_TW
dc.contributor.department生物科技學系zh_TW
dc.contributor.departmentInstitute of Environmental Engineeringen_US
dc.contributor.departmentDepartment of Biological Science and Technologyen_US
dc.identifier.wosnumberWOS:000289544600011-
dc.citation.woscount14-
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