Feed-water pretreatment: methods to reduce membrane fouling by natural organic matter

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dc.contributor.authorMaartens A.
dc.contributor.authorSwart P.
dc.contributor.authorJacobs E.P.
dc.date.accessioned2011-05-15T15:59:42Z
dc.date.available2011-05-15T15:59:42Z
dc.date.issued1999
dc.description.abstractThe prevention of fouling of polysulphone ultrafiltration membranes, used for the purification of natural brown water, was investigated by pretreating the feed-water prior to filtration. Natural brown water was pretreated by changing the pH of the feed solution and by coagulation with metal-ions prior to filtration. Specific characterisation techniques, developed by Maartens et al. (1998) [A. Maartens, P. Swart, E.P. Jacobs, Humic membrane foulants in natural brown water: characterization and removal, Desalination 115 (3) (1998) 215-227] and Jucker and Clarke (1994) [C. Jucker, M.M. Clark, Adsorption of aquatic humic substances on hydrophobic ultrafiltration membranes, J. Membrane Sci. 97 (1994) 37-52], were used to determine and compare the effects induced by the adsorption of natural organic matter on the permeability of capillary ultrafiltration membranes. The extent of foulant adsorption and the quality of the resultant permeate solutions were determined by UV-VIS-light spectroscopy. Results indicated that adsorption of natural organic matter can be minimised by adjusting the pH of the feed solution to 7. The findings of this investigation provides information of importance for the operation of future natural brown water ultrafiltration plants. Copyright (C) 1999 Elsevier Science B.V.The prevention of fouling of polysulphone ultrafiltration membranes, used for the purification of natural brown water, was investigated by pretreating the feed-water prior to filtration. Natural brown water was pretreated by changing the pH of the feed solution and by coagulation with metal-ions prior to filtration. Specific characterization techniques, developed by Maartens et al. (1998) and Jucker and Clarke (1994), were used to determine and compare the effects induced by the adsorption of natural organic matter on the permeability of capillary ultrafiltration membranes. The extent of foulant adsorption and the quality of the resultant permeate solutions were determined by UV-VIS-light spectroscopy. Results indicated that adsorption of natural organic matter can be minimized by adjusting the pH of the feed solution to 7. The findings of this investigation provides information of importance for the operation of future natural brown water ultrafiltration plants.
dc.description.versionArticle
dc.identifier.citationJournal of Membrane Science
dc.identifier.citation163
dc.identifier.citation1
dc.identifier.issn3767388
dc.identifier.other10.1016/S0376-7388(99)00155-6
dc.identifier.urihttp://hdl.handle.net/10019.1/11318
dc.subjectAdsorption
dc.subjectCoagulation
dc.subjectFeedwater treatment
dc.subjectFouling
dc.subjectMechanical permeability
dc.subjectpH effects
dc.subjectPolysulfones
dc.subjectUltrafiltration
dc.subjectUltraviolet spectroscopy
dc.subjectWater filtration
dc.subjectHumic substances
dc.subjectNatural organic matter
dc.subjectPolymeric membranes
dc.subjectorganic matter
dc.subjectpolysulfone
dc.subjectfouling
dc.subjectmembrane
dc.subjectorganic compound
dc.subjectpolysulfone
dc.subjectsewage treatment
dc.subjectultrafiltration
dc.subjectadsorption
dc.subjectarticle
dc.subjectmembrane structure
dc.subjectpH
dc.subjectpriority journal
dc.subjectspectroscopy
dc.subjectultrafiltration
dc.subjectwater management
dc.titleFeed-water pretreatment: methods to reduce membrane fouling by natural organic matter
dc.typeArticle
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