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dc.contributor.authorQamar, Adnan
dc.contributor.authorKerdi, Sarah
dc.contributor.authorAli, Syed Muztuza
dc.contributor.authorShon, Ho Kyong
dc.contributor.authorVrouwenvelder, Johannes S.
dc.contributor.authorGhaffour, NorEddine
dc.date.accessioned2021-03-29T06:15:45Z
dc.date.available2020-12-16T12:24:07Z
dc.date.available2021-03-29T06:15:45Z
dc.date.issued2021-03-27
dc.date.submitted2020-11-25
dc.identifier.citationQamar, A., Kerdi, S., Ali, S. M., Shon, H. K., Vrouwenvelder, J. S., & Ghaffour, N. (2021). Novel hole-pillar spacer design for improved hydrodynamics and biofouling mitigation in membrane filtration. Scientific Reports, 11(1). doi:10.1038/s41598-021-86459-w
dc.identifier.issn2045-2322
dc.identifier.pmid33772069
dc.identifier.doi10.1038/s41598-021-86459-w
dc.identifier.urihttp://hdl.handle.net/10754/666413
dc.description.abstractFeed spacers are the critical components of any spiral-wound filtration module, dictating the filtration performance. Three spacer designs, namely a non-woven commercial spacer (varying filament cross-section), a symmetric pillar spacer, and a novel hole-pillar spacer (constant filament diameter) were studied using Direct Numerical Simulations (DNS), 3-D printed and subsequently experimentally tested in a lab-scale ultrafiltration set-up with high biofouling potential feed water at various feed pressures. Independent of the applied pressure, the novel hole-pillar spacer showed initially the lowest feed channel pressure drop, the lowest shear stress, and the highest permeate flux compared to the commercial and pillar spacers. Furthermore, less biofilm thickness development on membrane surface was visualized by Optical Coherent Tomography (OCT) imaging for the proposed hole-pillar spacer. At higher feed pressure, a thicker biofilm developed on membrane surface for all spacer designs explaining the stronger decrease in permeate flux at high pressure. The findings systematically demonstrated the role of various spacer designs and applied pressure on the performance of pre-treatment process, while identifying specific shear stress distribution guidelines for engineering a new spacer design in different filtration techniques.
dc.description.sponsorshipThis study was funded by KAUST faculty baseline (BAS/1/1086-01-01).
dc.description.sponsorshipThe research reported in this paper was supported by King Abdullah University of Science and Technology (KAUST), Saudi Arabia. The authors acknowledge help, assistance and support from the Water Desalination and Reuse Center (WDRC) staff and KAUST Supercomputing Laboratory (KSL).
dc.publisherSpringer Science and Business Media LLC
dc.relation.urlhttp://www.nature.com/articles/s41598-021-86459-w
dc.rightsThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.
dc.rights.urihttps://creativecommons.org/licenses/by/4.0
dc.titleNovel hole-pillar spacer design for improved hydrodynamics and biofouling mitigation in membrane filtration.
dc.typeArticle
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)
dc.contributor.departmentEnvironmental Science and Engineering Program
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.identifier.journalScientific reports
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionSchool of Civil and Environmental Engineering, University of Technology, Sydney, Post Box 129, Broadway, NSW 2007, Australia.
dc.identifier.volume11
dc.identifier.issue1
kaust.personQamar, Adnan
kaust.personKerdi, Sarah
kaust.personVrouwenvelder, Johannes S.
kaust.personGhaffour, Noreddine
kaust.grant.numberBAS/1/1086-01-01
dc.date.accepted2021-03-16
refterms.dateFOA2020-12-16T12:25:58Z
kaust.acknowledged.supportUnitBAS
kaust.acknowledged.supportUnitKSL


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This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.
Except where otherwise noted, this item's license is described as This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.
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