High flux and antifouling properties of negatively charged membrane for dyeing wastewater treatment by membrane distillation

Handle URI:
http://hdl.handle.net/10754/617693
Title:
High flux and antifouling properties of negatively charged membrane for dyeing wastewater treatment by membrane distillation
Authors:
An, Alicia Kyoungjin; Guo, Jiaxin; Jeong, Sanghyun; Lee, Eui-Jong; Tabatabai, S. Assiyeh Alizadeh ( 0000-0002-4997-3861 ) ; Leiknes, TorOve ( 0000-0003-4046-5622 )
Abstract:
This study investigated the applicability of membrane distillation (MD) to treat dyeing wastewater discharged by the textile industry. Four different dyes containing methylene blue (MB), crystal violet (CV), acid red 18 (AR), and acid yellow 36 (AY) were tested. Two types of hydrophobic membranes made of polytetrafluoroethylene (PTFE) and polyvinylidene fluoride (PVDF) were used. The membranes were characterized by testing against each dye (foulant-foulant) and the membrane–dye (membrane-foulant) interfacial interactions and their mechanisms were identified. The MD membranes possessed negative charges, which facilitated the treatment of acid and azo dyes of the same charge and showed higher fluxes. In addition, PTFE membrane reduced the wettability with higher hydrophobicity of the membrane surface. The PTFE membrane evidenced especially its resistant to dye absorption, as its strong negative charge and chemical structure caused a flake-like (loose) dye–dye structure to form on the membrane surface rather than in the membrane pores. This also enabled the recovery of flux and membrane properties by water flushing (WF), thereby direct-contact MD with PTFE membrane treating 100 mg/L of dye mixtures showed stable flux and superior color removal during five days operation. Thus, MD shows a potential for stable long-term operation in conjunction with a simple membrane cleaning process, and its suitability in dyeing wastewater treatment.
KAUST Department:
Water Desalination & Reuse Research Cntr; Biological and Environmental Sciences and Engineering (BESE) Division
Citation:
High flux and antifouling properties of negatively charged membrane for dyeing wastewater treatment by membrane distillation 2016 Water Research
Publisher:
Elsevier BV
Journal:
Water Research
Issue Date:
25-Jul-2016
DOI:
10.1016/j.watres.2016.07.060
Type:
Article
ISSN:
00431354
Sponsors:
We acknowledge the financial support from City University of Hong Kong under its Start-up Grant for new faculty (Grant No. 7200447).
Additional Links:
http://linkinghub.elsevier.com/retrieve/pii/S0043135416305747
Appears in Collections:
Articles

Full metadata record

DC FieldValue Language
dc.contributor.authorAn, Alicia Kyoungjinen
dc.contributor.authorGuo, Jiaxinen
dc.contributor.authorJeong, Sanghyunen
dc.contributor.authorLee, Eui-Jongen
dc.contributor.authorTabatabai, S. Assiyeh Alizadehen
dc.contributor.authorLeiknes, TorOveen
dc.date.accessioned2016-07-28T13:22:09Z-
dc.date.available2016-07-28T13:22:09Z-
dc.date.issued2016-07-25-
dc.identifier.citationHigh flux and antifouling properties of negatively charged membrane for dyeing wastewater treatment by membrane distillation 2016 Water Researchen
dc.identifier.issn00431354-
dc.identifier.doi10.1016/j.watres.2016.07.060-
dc.identifier.urihttp://hdl.handle.net/10754/617693-
dc.description.abstractThis study investigated the applicability of membrane distillation (MD) to treat dyeing wastewater discharged by the textile industry. Four different dyes containing methylene blue (MB), crystal violet (CV), acid red 18 (AR), and acid yellow 36 (AY) were tested. Two types of hydrophobic membranes made of polytetrafluoroethylene (PTFE) and polyvinylidene fluoride (PVDF) were used. The membranes were characterized by testing against each dye (foulant-foulant) and the membrane–dye (membrane-foulant) interfacial interactions and their mechanisms were identified. The MD membranes possessed negative charges, which facilitated the treatment of acid and azo dyes of the same charge and showed higher fluxes. In addition, PTFE membrane reduced the wettability with higher hydrophobicity of the membrane surface. The PTFE membrane evidenced especially its resistant to dye absorption, as its strong negative charge and chemical structure caused a flake-like (loose) dye–dye structure to form on the membrane surface rather than in the membrane pores. This also enabled the recovery of flux and membrane properties by water flushing (WF), thereby direct-contact MD with PTFE membrane treating 100 mg/L of dye mixtures showed stable flux and superior color removal during five days operation. Thus, MD shows a potential for stable long-term operation in conjunction with a simple membrane cleaning process, and its suitability in dyeing wastewater treatment.en
dc.description.sponsorshipWe acknowledge the financial support from City University of Hong Kong under its Start-up Grant for new faculty (Grant No. 7200447).en
dc.language.isoenen
dc.publisherElsevier BVen
dc.relation.urlhttp://linkinghub.elsevier.com/retrieve/pii/S0043135416305747en
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Water Research. 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 Water Research, 25 July 2016. DOI: 10.1016/j.watres.2016.07.060en
dc.subjectDyeing wastewateren
dc.subjectHydrophobic membraneen
dc.subjectMembrane distillationen
dc.subjectMembrane foulingen
dc.subjectWater flushingen
dc.titleHigh flux and antifouling properties of negatively charged membrane for dyeing wastewater treatment by membrane distillationen
dc.typeArticleen
dc.contributor.departmentWater Desalination & Reuse Research Cntren
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.identifier.journalWater Researchen
dc.eprint.versionPost-printen
dc.contributor.institutionSchool of Energy and Environment, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, Chinaen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorJeong, Sanghyunen
kaust.authorTabatabai, S. Assiyeh Alizadehen
kaust.authorLeiknes, TorOveen
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