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dc.contributor.authorVillacorte, Loreen O.
dc.contributor.authorEkowati, Yuli
dc.contributor.authorWinters, Harvey
dc.contributor.authorAmy, Gary L.
dc.contributor.authorSchippers, Jan Cornelis
dc.contributor.authorKennedy, D.
dc.date.accessioned2015-08-03T10:43:57Z
dc.date.available2015-08-03T10:43:57Z
dc.date.issued2013-01
dc.identifier.issn19443994
dc.identifier.doi10.1080/19443994.2012.699359
dc.identifier.urihttp://hdl.handle.net/10754/562591
dc.description.abstractAlgal blooms are currently a major concern of the membrane industry as it generates massive concentrations of organic matter (e.g. transparent exopolymer particles [TEP]), which can adversely affect the operation of membrane filtration systems. The goal of this study is to understand the production, composition and membrane rejection of these organic materials using different characterisation techniques. Two common species of bloom-forming freshwater and marine algae were cultivated in batch cultures for 30days and the productions of TEP and other organic matter were monitored at different growth phases. TEP production of the marine diatom, Chaetoceros affinis, produced 6-9 times more TEP than the freshwater blue-green algae, Microcystis. The organic substances produced by both algal species were dominated by biopolymeric substances such as polysaccharides (45-64%) and proteins (2-17%) while the remaining fraction comprises of low molecular weight refractory (humic-like) and/ or biogenic organic substances. MF/UF membranes mainly rejected the biopolymers but not the low molecular weight organic materials. MF membranes (0.1-0.4 lm) rejected 42-56% of biopolymers, while UF membranes (10-100 kDa) rejected 65-95% of these materials. Further analysis of rejected organic materials on the surface of the membranes revealed that polysac-charides and proteins are likely responsible for the fouling of MF/UF systems during an algal bloom situation. © 2013 Desalination Publications.
dc.publisherInforma UK Limited
dc.subjectAlgal bloom
dc.subjectAlgal organic matter
dc.subjectMF/ UF rejection
dc.subjectMF/UF fouling
dc.subjectTransparent exopolymer particles (TEP)
dc.titleCharacterisation of transparent exopolymer particles (TEP) produced during algal bloom: A membrane treatment perspective
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 and Water Treatment
dc.contributor.institutionUNESCO-IHE, Institute for Water Education, Westvest 7, 2611 AX, Delft, Netherlands
dc.contributor.institutionWetsus, Center of Excellence for Sustainable Water Technology, Agora 1, 8934 CJ, Leeuwarden, Netherlands
dc.contributor.institutionDelft University of Technology, Stevinweg 1, 2628 CN Delft, Netherlands
kaust.personAmy, Gary L.


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