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Article: Pore fouling of microfiltration membranes by activated sludge

TitlePore fouling of microfiltration membranes by activated sludge
Authors
KeywordsActivated sludge
Fouling
Membrane
Microfiltration
Pore
Issue Date2005
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/memsci
Citation
Journal Of Membrane Science, 2005, v. 264 n. 1-2, p. 161-166 How to Cite?
AbstractPore fouling of four microfiltration membranes was investigated for the filtration of activated sludge using sonication as the means to remove the cake layer from membrane surface. Results show that pore fouling was affected by membrane's microstructure, pore openings and hydrophilicity. For the track-etched polycarbonate (PC) membrane, there was no measurable pore resistance (Rp) to filtration. For the three membranes of sponge-like microstructure, the respective Rp values were 0.3 × 10 11, 1.3 × 1011, and 16.4 × 1011 m-1 for polyvinylidene fluoride (PVDF), mixed cellulose esters (MCE), and polyethersulfone (PES). The PES membrane had the highest Rp due to its large pore openings (18-20 μm), whereas MCE had higher Rp than PVDF because of its higher hydrophilicity. The Rp of PES membrane accounted for 86% of the total resistance for its filtration of activated sludge; the corresponding values were merely 2% for PVDF and 11% for MCE. It increased with the suspended solids level of the activated sludge to the power of 0.56. Results further demonstrated that Rp-dominant type of membranes, such as PES, was unsuitable for the membrane bioreactors. © 2005 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/70798
ISSN
2015 Impact Factor: 5.557
2015 SCImago Journal Rankings: 2.042
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorFang, HHPen_HK
dc.contributor.authorShi, Xen_HK
dc.date.accessioned2010-09-06T06:26:13Z-
dc.date.available2010-09-06T06:26:13Z-
dc.date.issued2005en_HK
dc.identifier.citationJournal Of Membrane Science, 2005, v. 264 n. 1-2, p. 161-166en_HK
dc.identifier.issn0376-7388en_HK
dc.identifier.urihttp://hdl.handle.net/10722/70798-
dc.description.abstractPore fouling of four microfiltration membranes was investigated for the filtration of activated sludge using sonication as the means to remove the cake layer from membrane surface. Results show that pore fouling was affected by membrane's microstructure, pore openings and hydrophilicity. For the track-etched polycarbonate (PC) membrane, there was no measurable pore resistance (Rp) to filtration. For the three membranes of sponge-like microstructure, the respective Rp values were 0.3 × 10 11, 1.3 × 1011, and 16.4 × 1011 m-1 for polyvinylidene fluoride (PVDF), mixed cellulose esters (MCE), and polyethersulfone (PES). The PES membrane had the highest Rp due to its large pore openings (18-20 μm), whereas MCE had higher Rp than PVDF because of its higher hydrophilicity. The Rp of PES membrane accounted for 86% of the total resistance for its filtration of activated sludge; the corresponding values were merely 2% for PVDF and 11% for MCE. It increased with the suspended solids level of the activated sludge to the power of 0.56. Results further demonstrated that Rp-dominant type of membranes, such as PES, was unsuitable for the membrane bioreactors. © 2005 Elsevier B.V. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/memscien_HK
dc.relation.ispartofJournal of Membrane Scienceen_HK
dc.rightsJournal of Membrane Science. Copyright © Elsevier BV.en_HK
dc.subjectActivated sludgeen_HK
dc.subjectFoulingen_HK
dc.subjectMembraneen_HK
dc.subjectMicrofiltrationen_HK
dc.subjectPoreen_HK
dc.titlePore fouling of microfiltration membranes by activated sludgeen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0376-7388&volume=264&issue=1-2&spage=161&epage=166&date=2005&atitle=Pore+fouling+of+microfiltration+membranes+by+activated+sludgeen_HK
dc.identifier.emailFang, HHP:hrechef@hkucc.hku.hken_HK
dc.identifier.authorityFang, HHP=rp00115en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.memsci.2005.04.029en_HK
dc.identifier.scopuseid_2-s2.0-25844517925en_HK
dc.identifier.hkuros120540en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-25844517925&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume264en_HK
dc.identifier.issue1-2en_HK
dc.identifier.spage161en_HK
dc.identifier.epage166en_HK
dc.identifier.isiWOS:000232756400018-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridFang, HHP=7402542625en_HK
dc.identifier.scopusauthoridShi, X=8963870700en_HK

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