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Article: Fouling of ultrafiltration membrane during secondary effluent filtration

TitleFouling of ultrafiltration membrane during secondary effluent filtration
Authors
KeywordsCritical Flux
Fouling
Limiting Flux
Secondary Effluent
Ultrafiltration Membrane
Zeta Potential
Issue Date2011
Citation
Desalination And Water Treatment, 2011, v. 30 n. 1-3, p. 289-294 How to Cite?
AbstractUltrafiltration (UF) membranes have been increasingly used for the pretreatment of secondary effluent in reverse osmosis wastewater reclamation plants. The fouling behavior of UF membranes during secondary effluent filtration was studied under constant pressure conditions in a cross flow filtration unit. The rate of flux decline was found to be strongly dependent on the permeate flux level, and drastic flux decline was observed at high flux during the initial period of filtration (within the first 30 min of each fouling test). Further flux decline was insignificant and a limiting flux behavior was observed. Membranes with high initial flux (>the limiting value) approached asymptotically to an identical stable flux, i.e., the limiting flux. The stable flux was strongly affected by solution chemistry (both pH and calcium concentration), with more severe membrane fouling occurred near the isoelectrical point of the foulant (pH 6) or at greater calcium concentration. Zeta potential measurements revealed that the stable flux may be correlated to the square of zeta potential of fouled membrane samples. The current study seems to suggest that foulant-foulant electrostatic repulsion plays a significant role in membrane fouling by effluent organic matter. © 2011 Desalination Publications. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/185408
ISSN
2015 Impact Factor: 1.272
2015 SCImago Journal Rankings: 0.392
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorTang, CYen_US
dc.contributor.authorPeng, Yen_US
dc.date.accessioned2013-07-30T07:32:20Z-
dc.date.available2013-07-30T07:32:20Z-
dc.date.issued2011en_US
dc.identifier.citationDesalination And Water Treatment, 2011, v. 30 n. 1-3, p. 289-294en_US
dc.identifier.issn1944-3994en_US
dc.identifier.urihttp://hdl.handle.net/10722/185408-
dc.description.abstractUltrafiltration (UF) membranes have been increasingly used for the pretreatment of secondary effluent in reverse osmosis wastewater reclamation plants. The fouling behavior of UF membranes during secondary effluent filtration was studied under constant pressure conditions in a cross flow filtration unit. The rate of flux decline was found to be strongly dependent on the permeate flux level, and drastic flux decline was observed at high flux during the initial period of filtration (within the first 30 min of each fouling test). Further flux decline was insignificant and a limiting flux behavior was observed. Membranes with high initial flux (>the limiting value) approached asymptotically to an identical stable flux, i.e., the limiting flux. The stable flux was strongly affected by solution chemistry (both pH and calcium concentration), with more severe membrane fouling occurred near the isoelectrical point of the foulant (pH 6) or at greater calcium concentration. Zeta potential measurements revealed that the stable flux may be correlated to the square of zeta potential of fouled membrane samples. The current study seems to suggest that foulant-foulant electrostatic repulsion plays a significant role in membrane fouling by effluent organic matter. © 2011 Desalination Publications. All rights reserved.en_US
dc.languageengen_US
dc.relation.ispartofDesalination and Water Treatmenten_US
dc.subjectCritical Fluxen_US
dc.subjectFoulingen_US
dc.subjectLimiting Fluxen_US
dc.subjectSecondary Effluenten_US
dc.subjectUltrafiltration Membraneen_US
dc.subjectZeta Potentialen_US
dc.titleFouling of ultrafiltration membrane during secondary effluent filtrationen_US
dc.typeArticleen_US
dc.identifier.emailTang, CY: tangc@hku.hken_US
dc.identifier.authorityTang, CY=rp01765en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.5004/dwt.2011.2166en_US
dc.identifier.scopuseid_2-s2.0-80052412480en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-80052412480&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume30en_US
dc.identifier.issue1-3en_US
dc.identifier.spage289en_US
dc.identifier.epage294en_US
dc.identifier.isiWOS:000293925700034-
dc.identifier.scopusauthoridTang, CY=35489259800en_US
dc.identifier.scopusauthoridPeng, Y=49862120100en_US

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