Hydrophilic Fe2O3 dynamic membrane mitigating fouling of support ceramic membrane in ultrafiltration of oil/water emulsion

Handle URI:
http://hdl.handle.net/10754/602294
Title:
Hydrophilic Fe2O3 dynamic membrane mitigating fouling of support ceramic membrane in ultrafiltration of oil/water emulsion
Authors:
Lu, Dongwei; Cheng, Wei; Zhang, Tao; Lu, Xinglin; Liu, Qianliang; Jiang, Jin; Ma, Jun
Abstract:
Oil/water (O/W) emulsion is daily produced and difficult to be treated effectively. Ceramic membrane ultrafiltration is one of reliable processes for the treatment of O/W emulsion, yet still hindered by membrane fouling. In this study, two types of Fe2O3 dynamic membranes (i.e., pre-coated dynamic membrane and self-forming dynamic membrane) were prepared to mitigate the fouling of support ceramic membrane in O/W emulsion treatment. Pre-coated dynamic membrane (DM) significantly reduced the fouling of ceramic membrane (i.e., 10% increase of flux recovery rate), while self-forming dynamic membrane aggravated ceramic membrane fouling (i.e., 8.6% decrease of flux recovery rate) after four filtration cycles. A possible fouling mechanism was proposed to explain this phenomenon, which was then confirmed by optical images of fouled membranes and the analysis of COD rejection. In addition, the cleaning efficiency of composite membranes (i.e., Fe2O3 dynamic membrane and support ceramic membrane) was enhanced by substitution of alkalescent water backwash for deionized water backwash. The possible reason for this enhancement was also explained. Our result suggests that pre-coated Fe2O3 dynamic membrane with alkalescent water backwash can be a promising technology to reduce the fouling of ceramic membrane and enhance membrane cleaning efficiency in the treatment of oily wastewater.
KAUST Department:
Water Desalination and Reuse Research Center (WDRC)
Citation:
Hydrophilic Fe2O3 dynamic membrane mitigating fouling of support ceramic membrane in ultrafiltration of oil/water emulsion 2016 Separation and Purification Technology
Publisher:
Elsevier BV
Journal:
Separation and Purification Technology
Issue Date:
17-Mar-2016
DOI:
10.1016/j.seppur.2016.03.034
Type:
Article
ISSN:
13835866
Sponsors:
This work was supported by National Key Technology Support Program of China (2012BAC05B02). The authors want to thank Daqing Oilfield Company of China for providing the crude oil for the experiment.
Additional Links:
http://linkinghub.elsevier.com/retrieve/pii/S1383586616301393
Appears in Collections:
Articles; Water Desalination and Reuse Research Center (WDRC)

Full metadata record

DC FieldValue Language
dc.contributor.authorLu, Dongweien
dc.contributor.authorCheng, Weien
dc.contributor.authorZhang, Taoen
dc.contributor.authorLu, Xinglinen
dc.contributor.authorLiu, Qianliangen
dc.contributor.authorJiang, Jinen
dc.contributor.authorMa, Junen
dc.date.accessioned2016-03-20T13:42:10Zen
dc.date.available2016-03-20T13:42:10Zen
dc.date.issued2016-03-17en
dc.identifier.citationHydrophilic Fe2O3 dynamic membrane mitigating fouling of support ceramic membrane in ultrafiltration of oil/water emulsion 2016 Separation and Purification Technologyen
dc.identifier.issn13835866en
dc.identifier.doi10.1016/j.seppur.2016.03.034en
dc.identifier.urihttp://hdl.handle.net/10754/602294en
dc.description.abstractOil/water (O/W) emulsion is daily produced and difficult to be treated effectively. Ceramic membrane ultrafiltration is one of reliable processes for the treatment of O/W emulsion, yet still hindered by membrane fouling. In this study, two types of Fe2O3 dynamic membranes (i.e., pre-coated dynamic membrane and self-forming dynamic membrane) were prepared to mitigate the fouling of support ceramic membrane in O/W emulsion treatment. Pre-coated dynamic membrane (DM) significantly reduced the fouling of ceramic membrane (i.e., 10% increase of flux recovery rate), while self-forming dynamic membrane aggravated ceramic membrane fouling (i.e., 8.6% decrease of flux recovery rate) after four filtration cycles. A possible fouling mechanism was proposed to explain this phenomenon, which was then confirmed by optical images of fouled membranes and the analysis of COD rejection. In addition, the cleaning efficiency of composite membranes (i.e., Fe2O3 dynamic membrane and support ceramic membrane) was enhanced by substitution of alkalescent water backwash for deionized water backwash. The possible reason for this enhancement was also explained. Our result suggests that pre-coated Fe2O3 dynamic membrane with alkalescent water backwash can be a promising technology to reduce the fouling of ceramic membrane and enhance membrane cleaning efficiency in the treatment of oily wastewater.en
dc.description.sponsorshipThis work was supported by National Key Technology Support Program of China (2012BAC05B02). The authors want to thank Daqing Oilfield Company of China for providing the crude oil for the experiment.en
dc.language.isoenen
dc.publisherElsevier BVen
dc.relation.urlhttp://linkinghub.elsevier.com/retrieve/pii/S1383586616301393en
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Separation and Purification Technology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Separation and Purification Technology, 17 March 2016. DOI: 10.1016/j.seppur.2016.03.034en
dc.subjectDynamic membraneen
dc.subjectOil/Water emulsionen
dc.subjectCeramic membrane foulingen
dc.subjectMembrane cleaningen
dc.titleHydrophilic Fe2O3 dynamic membrane mitigating fouling of support ceramic membrane in ultrafiltration of oil/water emulsionen
dc.typeArticleen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.identifier.journalSeparation and Purification Technologyen
dc.eprint.versionPost-printen
dc.contributor.institutionState Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, People’s Republic of Chinaen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorZhang, Taoen
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