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dc.contributor.authorYan, Bin
dc.contributor.authorBristow, Nicholas W.
dc.contributor.authorVogt, Sarah J.
dc.contributor.authorVrouwenvelder, Johannes S.
dc.contributor.authorJohns, Michael L.
dc.contributor.authorFridjonsson, Einar O.
dc.date.accessioned2021-03-24T06:30:39Z
dc.date.available2021-03-24T06:30:39Z
dc.date.issued2021-03-23
dc.date.submitted2020-11-12
dc.identifier.citationYan, B., Bristow, N. W., Vogt, S. J., Vrouwenvelder, J. S., Johns, M. L., & Fridjonsson, E. O. (2021). Monitoring of hollow fiber module velocity field and fouling inside individual fibers using benchtop MRI. Journal of Membrane Science, 119238. doi:10.1016/j.memsci.2021.119238
dc.identifier.issn0376-7388
dc.identifier.doi10.1016/j.memsci.2021.119238
dc.identifier.urihttp://hdl.handle.net/10754/668216
dc.description.abstractUltrafiltration (UF) membrane modules are a viable pre-treatment technology for reverse osmosis processes; they however are susceptible to fouling. In the current study, we demonstrate the use of benchtop MRI to provide quantitative structural and velocity images of an UF membrane module showing velocity inside each individual fiber and proceed to provide unique insights into both subsequent fouling and cleaning events. The module consists of 400 fibers, these all were correctly identified from the MRI images based on an implemented fiber identification algorithm. Velocity imaging of the UF module, revealed significant water flow in only 91% of the fibers. Following fouling with a calcium alginate gel, only 73% of the fibers were observed to be active which only recovered to 79% on application of a cleaning protocol using acetic acid. Fouling was clearly isolated to specific fibers in which flow was effectively eliminated; this is not consistent with the assumption of uniform fouling deposition on the inner fiber walls. This also restricts the access of cleaning solutions which effectively by-pass the fouled fibres. This level of novel, quantitative insight is available on benchtop MRI equipment, which displays significant promise for further hollow fiber UF module design, manufacturing and fouling development and control studies.
dc.description.sponsorshipThe author want to thank the funding support from Saudi Arabia ‘Desalination PHD Scholarship and The University of Western Australia (UWA)'s Research Training Program stipend and UWA Safety Net Top-up scholarship.
dc.publisherElsevier BV
dc.relation.urlhttps://linkinghub.elsevier.com/retrieve/pii/S0376738821001885
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Journal of Membrane Science. 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 Journal of Membrane Science, [, , (2021-03-22)] DOI: 10.1016/j.memsci.2021.119238 . © 2021. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleMonitoring of hollow fiber module velocity field and fouling inside individual fibers using benchtop MRI
dc.typeArticle
dc.contributor.departmentBiological and Environmental Science and Engineering (BESE) Division
dc.contributor.departmentEnvironmental Science and Engineering Program
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)
dc.identifier.journalJournal of Membrane Science
dc.rights.embargodate2023-03-22
dc.eprint.versionPost-print
dc.contributor.institutionDept. of Chem. Eng., School of Engineering, University of Western Australia, 35 Stirling Hwy, Crawley, WA, 009, Australia.
dc.identifier.pages119238
kaust.personVrouwenvelder, Johannes S.
dc.date.accepted2021-02-26
refterms.dateFOA2021-03-24T06:31:10Z
dc.date.published-online2021-03-23
dc.date.published-print2021-07


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