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dc.contributor.authorFarhat, Nadia
dc.contributor.authorVrouwenvelder, Johannes S.
dc.contributor.authorvan Loosdrecht, Mark C.M.
dc.contributor.authorBucs, Szilard
dc.contributor.authorStaal, Marc
dc.date.accessioned2016-07-18T09:27:55Z
dc.date.available2016-07-18T09:27:55Z
dc.date.issued2016-07-16
dc.identifier.citationEffect of water temperature on biofouling development in reverse osmosis membrane systems 2016 Water Research
dc.identifier.issn00431354
dc.identifier.pmid27450353
dc.identifier.doi10.1016/j.watres.2016.07.015
dc.identifier.urihttp://hdl.handle.net/10754/617089
dc.description.abstractUnderstanding the factors that determine the spatial and temporal biofilm development is a key to formulate effective control strategies in reverse osmosis membrane systems for desalination and wastewater reuse. In this study, biofilm development was investigated at different water temperatures (10, 20, and 30 °C) inside a membrane fouling simulator (MFS) flow cell. The MFS studies were done at the same crossflow velocity with the same type of membrane and spacer materials, and the same feed water type and nutrient concentration, differing only in water temperature. Spatially resolved biofilm parameters such as oxygen decrease rate, biovolume, biofilm spatial distribution, thickness and composition were measured using in-situ imaging techniques. Pressure drop (PD) increase in time was used as a benchmark as to when to stop the experiments. Biofilm measurements were performed daily, and experiments were stopped once the average PD increased to 40 mbar/cm. The results of the biofouling study showed that with increasing feed water temperature (i) the biofilm activity developed faster, (ii) the pressure drop increased faster, while (iii) the biofilm thickness decreased. At an average pressure drop increase of 40 mbar/cm over the MFS for the different feed water temperatures, different biofilm activities, structures, and quantities were found, indicating that diagnosis of biofouling of membranes operated at different or varying (seasonal) feed water temperatures may be challenging. Membrane installations with a high temperature feed water are more susceptible to biofouling than installations fed with low temperature feed water.
dc.description.sponsorshipThe research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST). The authors would like to thank Sergey Borisov for providing the optode material.
dc.language.isoen
dc.publisherElsevier BV
dc.relation.urlhttp://linkinghub.elsevier.com/retrieve/pii/S004313541630519X
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Water Research. 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 Water Research, 14 July 2016. DOI: 10.1016/j.watres.2016.07.015
dc.subjectSensor
dc.subjectNon-destructive
dc.subjectGrowth rate
dc.subjectReverse osmosis
dc.subjectSeawater desalination
dc.subjectWastewater reuse
dc.titleEffect of water temperature on biofouling development in reverse osmosis membrane systems
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.journalWater Research
dc.eprint.versionPost-print
dc.contributor.institutionDelft University of Technology, Faculty of Applied Sciences, Department of Biotechnology, Van der Maasweg 9, 2629 HZ, Delft, The Netherlands
dc.contributor.institutionWetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA, Leeuwarden, The Netherlands
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)
kaust.personFarhat, Nadia
kaust.personVrouwenvelder, Johannes S.
kaust.personBucs, Szilard
kaust.personStaal, Marc
refterms.dateFOA2018-07-14T00:00:00Z
dc.date.published-online2016-07-16
dc.date.published-print2016-10


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