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dc.contributor.authorLi, Zhenyu
dc.contributor.authorValladares Linares, Rodrigo
dc.contributor.authorBucs, Szilard
dc.contributor.authorFortunato, Luca
dc.contributor.authorHélix-Nielsen, Claus
dc.contributor.authorVrouwenvelder, Johannes S.
dc.contributor.authorGhaffour, NorEddine
dc.contributor.authorLeiknes, TorOve
dc.contributor.authorAmy, Gary
dc.date.accessioned2017-10-03T12:49:35Z
dc.date.available2017-10-03T12:49:35Z
dc.date.issued2017-07-27
dc.identifier.citationLi Z, Valladares Linares R, Bucs S, Fortunato L, Hélix-Nielsen C, et al. (2017) Aquaporin based biomimetic membrane in forward osmosis: Chemical cleaning resistance and practical operation. Desalination 420: 208–215. Available: http://dx.doi.org/10.1016/j.desal.2017.07.015.
dc.identifier.issn0011-9164
dc.identifier.doi10.1016/j.desal.2017.07.015
dc.identifier.urihttp://hdl.handle.net/10754/625706
dc.description.abstractAquaporin plays a promising role in fabricating high performance biomimetic forward osmosis (FO) membranes. However, aquaporin as a protein also has a risk of denaturation caused by various chemicals, resulting in a possible decay of membrane performance. The present study tested a novel aquaporin based biomimetic membrane in simulated membrane cleaning processes. The effects of cleaning agents on water flux and salt rejection were evaluated. The membrane showed a good resistance to the chemical agents. The water flux after chemical cleaning showed significant increases, particularly after cleaning with NaOCl and Alconox. Changes in the membrane structure and increased hydrophilicity in the surrounding areas of the aquaporin may be accountable for the increase in water permeability. The membrane shows stable salt rejection up to 99% after all cleaning agents were tested. A 15-day experiment with secondary wastewater effluent as the feed solution and seawater as the draw solution showed a stable flux and high salt rejection. The average rejection of the dissolved organic carbon from wastewater after the 15-day test was 90%. The results demonstrated that the aquaporin based biomimetic FO membrane exhibits chemical resistance for most agents used in membrane cleaning procedures, maintaining a stable flux and high salt rejection.
dc.description.sponsorshipWe thank Aquaporin A/S for the valuable discussions and providing us with the aquaporin based biomimetic membranes.
dc.publisherElsevier BV
dc.relation.urlhttp://www.sciencedirect.com/science/article/pii/S001191641730752X
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Desalination. 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 Desalination, [420, , (2017-07-27)] DOI: 10.1016/j.desal.2017.07.015 . © 2017. 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.subjectAquaporin
dc.subjectBiomimetic membrane
dc.subjectChemical stability
dc.subjectDesalination
dc.subjectForward osmosis
dc.titleAquaporin based biomimetic membrane in forward osmosis: Chemical cleaning resistance and practical operation
dc.typeArticle
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentEnvironmental Science and Engineering Program
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)
dc.identifier.journalDesalination
dc.eprint.versionPost-print
dc.contributor.institutionCollege of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China
dc.contributor.institutionAquaporin A/S, Ole Maaløes Vej 3, Copenhagen, DK2200, Denmark
dc.contributor.institutionLaboratory for Water Biophysics and Membrane Technology, Faculty of Chemistry and Chemical Engineering, University of Maribor, Maribor, Slovenia
dc.contributor.institutionDepartment of Environmental Engineering, Technical University of Denmark, Bygningstorvet 115, Kgs. Lyngby, DK2800, Denmark
dc.contributor.institutionWetsus, European Centre of Excellence for Sustainable Water Technology, Leeuwarden, Netherlands
dc.contributor.institutionDelft University of Technology, Faculty of Applied Sciences, Department of Biotechnology, Delft, Netherlands
dc.contributor.institutionDepartment of Chemical and Biomolecular Engineering, National University of Singapore, 119077, Singapore
dc.contributor.institutionCollege of Engineering, Computing and Applied Sciences, Clemson University, Clemson, SC, 29634, United States
kaust.personValladares Linares, Rodrigo
kaust.personBucs, Szilard
kaust.personFortunato, Luca
kaust.personVrouwenvelder, Johannes S.
kaust.personGhaffour, Noreddine
kaust.personLeiknes, TorOve


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