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dc.contributor.authorBucs, Szilard
dc.contributor.authorValladares Linares, Rodrigo
dc.contributor.authorSiddiqui, Amber
dc.contributor.authorMatin, Asif
dc.contributor.authorKhan, Zafarullah
dc.contributor.authorvan Loosdrecht, Mark C.M.
dc.contributor.authorYang, Rong
dc.contributor.authorWang, Minghui
dc.contributor.authorGleason, Karen K.
dc.contributor.authorKruithof, Joop C.
dc.contributor.authorVrouwenvelder, Johannes S.
dc.date.accessioned2017-10-03T12:49:28Z
dc.date.available2017-10-03T12:49:28Z
dc.date.issued2017
dc.identifier.citationBucs SS, Linares RV, Farhat N, Matin A, Khan Z, et al. (2017) Coating of reverse osmosis membranes with amphiphilic copolymers for biofouling control. DESALINATION AND WATER TREATMENT 68: 1–11. Available: http://dx.doi.org/10.5004/dwt.2017.20369.
dc.identifier.doi10.5004/dwt.2017.20369
dc.identifier.urihttp://hdl.handle.net/10754/625596
dc.description.abstractSurface coating of membranes may be a promising option to control biofilm development and biofouling impact on membrane performance of spiral-wound reverse osmosis (RO) systems. The objective of this study was to investigate the impact of an amphiphilic copolymer coating on biofilm formation and biofouling control. The coating was composed of both hydrophilic and hydrophobic monomers hydroxyethyl methacrylate (HEMA) and perfluorodecyl acrylate (PFA), respectively. Commercial RO membranes were coated with HEMA-PFA copolymer film. Long and short term biofouling studies with coated and uncoated membranes and feed spacer were performed using membrane fouling simulators (MFSs) operated in parallel, fed with water containing nutrients. For the long-term studies pressure drop development in time was monitored and after eight days the MFSs were opened and the accumulated biofilm on the membrane and spacer sheets was quantified and characterized. The presence of the membrane coating was determined using X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FTIR). Results showed that the amphiphilic coating (i) delayed biofouling (a lower pressure drop increase by a factor of 3 and a lower accumulated active biomass amount by a factor of 6), (ii) influenced the biofilm composition (23% lower polysaccharides and 132% higher protein content) and (iii) was still completely present on the membrane at the end of the biofouling study, showing that the coating was strongly attached to the membrane surface. Using coated membranes and feed spacers in combination with advanced cleaning strategies may be a suitable way to control biofouling.
dc.description.sponsorshipThe research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST) and Evides Industriewater. The authors are grateful to the Center for Clean Water and Clean Energy at King Fahd University of Petroleum & Minerals (KFUPM) and Massachusetts Institute of Technology (MIT) for funding the research via project no. R5-CW-08. Al-Saeed (KFUPM) is appreciated for XPS analyses of membrane samples.
dc.publisherDesalination Publications
dc.relation.urlhttp://www.deswater.com/DWT_articles/vol_68_papers/68_2017_1.pdf
dc.subjectAmphiphilic copolymer
dc.subjectBiofilm morphology
dc.subjectBiofouling control
dc.subjectMembrane coating
dc.subjectMembrane surface modification
dc.titleCoating of reverse osmosis membranes with amphiphilic copolymers for biofouling control
dc.typeArticle
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentBioscience Program
dc.contributor.departmentEnvironmental Science and Engineering Program
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)
dc.identifier.journalDESALINATION AND WATER TREATMENT
dc.contributor.institutionKing Fahd University of Petroleum & Minerals, Dhahran, 31261, , Saudi Arabia
dc.contributor.institutionCenter of Excellence for Scientific Research Collaboration with MIT, King Fahd University of Petroleum & Minerals, Dhahran, 31261, , Saudi Arabia
dc.contributor.institutionDepartment for Biotechnology, Faculty of Applied Sciences, Delft University of Technology, Van der Maasweg 9, Delft, 2629 HZ, , Netherlands
dc.contributor.institutionHarvard Medical School, Boston Children’s Hospital, Boston, MA, 02114, , , United States
dc.contributor.institutionMassachusetts Institute of Technology, Cambridge, 02139, , United States
dc.contributor.institutionWetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, Leeuwarden, 8911 MA, , Netherlands
kaust.personBucs, Szilard
kaust.personValladares Linares, Rodrigo
kaust.personSiddiqui, Amber
kaust.personVrouwenvelder, Johannes S.


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