Gradual PVP leaching from PVDF/PVP blend membranes and its effects on membrane fouling in membrane bioreactors

Improving the hydrodynamics on the membrane surface in a magnetically induced membrane vibration system (MMV) has been proven efficient for membrane fouling control in membrane bioreactors. This advantage can be further extended by using an optimized membrane. This was realized in this study by prep...

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Main Authors: Marbelia, L., Bilad, M.R., Vankelecom, I.F.J.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.22097 /
Published: 2019
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85058837968&doi=10.1016%2fj.seppur.2018.12.045&partnerID=40&md5=bef464e3ac3a6a77e12fe677bd45a033
http://eprints.utp.edu.my/22097/
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spelling utp-eprints.220972019-02-28T08:09:34Z Gradual PVP leaching from PVDF/PVP blend membranes and its effects on membrane fouling in membrane bioreactors Marbelia, L. Bilad, M.R. Vankelecom, I.F.J. Improving the hydrodynamics on the membrane surface in a magnetically induced membrane vibration system (MMV) has been proven efficient for membrane fouling control in membrane bioreactors. This advantage can be further extended by using an optimized membrane. This was realized in this study by preparing porous polyvinylidene fluoride membranes via polyvinylpyrrolidone (PVP) blending and later by leaching out the PVP from the membrane matrix via post-treatment using NaOCl. Results show that increasing the PVP content in the casting solution increases membrane fouling resistance. Slowly leaching of PVP after several periodic NaOCl cleanings increased membrane permeance. No advantage of NaOCl post-treatment was observed. The long-term filtration confirmed the superiority of the highly porous membrane that complemented the advantages offered by the MMV system. This suggests that despite the small quantity of the remaining PVP, its leaching offered a substantial gain to improve membrane filterability. © 2018 Elsevier B.V. 2019 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85058837968&doi=10.1016%2fj.seppur.2018.12.045&partnerID=40&md5=bef464e3ac3a6a77e12fe677bd45a033 Marbelia, L. and Bilad, M.R. and Vankelecom, I.F.J. (2019) Gradual PVP leaching from PVDF/PVP blend membranes and its effects on membrane fouling in membrane bioreactors. Separation and Purification Technology . pp. 276-282. http://eprints.utp.edu.my/22097/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description Improving the hydrodynamics on the membrane surface in a magnetically induced membrane vibration system (MMV) has been proven efficient for membrane fouling control in membrane bioreactors. This advantage can be further extended by using an optimized membrane. This was realized in this study by preparing porous polyvinylidene fluoride membranes via polyvinylpyrrolidone (PVP) blending and later by leaching out the PVP from the membrane matrix via post-treatment using NaOCl. Results show that increasing the PVP content in the casting solution increases membrane fouling resistance. Slowly leaching of PVP after several periodic NaOCl cleanings increased membrane permeance. No advantage of NaOCl post-treatment was observed. The long-term filtration confirmed the superiority of the highly porous membrane that complemented the advantages offered by the MMV system. This suggests that despite the small quantity of the remaining PVP, its leaching offered a substantial gain to improve membrane filterability. © 2018 Elsevier B.V.
format Article
author Marbelia, L.
Bilad, M.R.
Vankelecom, I.F.J.
spellingShingle Marbelia, L.
Bilad, M.R.
Vankelecom, I.F.J.
Gradual PVP leaching from PVDF/PVP blend membranes and its effects on membrane fouling in membrane bioreactors
author_sort Marbelia, L.
title Gradual PVP leaching from PVDF/PVP blend membranes and its effects on membrane fouling in membrane bioreactors
title_short Gradual PVP leaching from PVDF/PVP blend membranes and its effects on membrane fouling in membrane bioreactors
title_full Gradual PVP leaching from PVDF/PVP blend membranes and its effects on membrane fouling in membrane bioreactors
title_fullStr Gradual PVP leaching from PVDF/PVP blend membranes and its effects on membrane fouling in membrane bioreactors
title_full_unstemmed Gradual PVP leaching from PVDF/PVP blend membranes and its effects on membrane fouling in membrane bioreactors
title_sort gradual pvp leaching from pvdf/pvp blend membranes and its effects on membrane fouling in membrane bioreactors
publishDate 2019
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85058837968&doi=10.1016%2fj.seppur.2018.12.045&partnerID=40&md5=bef464e3ac3a6a77e12fe677bd45a033
http://eprints.utp.edu.my/22097/
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score 11.62408

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