Polyvinyl alcohol and amine-modified polyvinyl alcohol nanofiltration and reverse osmosis membranes

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dc.contributor.advisorSanderson, R. D.en_ZA
dc.contributor.advisorvan Reenen, A. J.en_ZA
dc.contributor.authorBezuidenhout, Deonen_ZA
dc.contributor.otherStellenbosch University. Faculty of Science. Dept. of Chemistry and Polymer Science.en_ZA
dc.date.accessioned2012-08-27T11:38:49Zen_ZA
dc.date.available2012-08-27T11:38:49Zen_ZA
dc.date.issued1993en_ZA
dc.descriptionThesis (M. Sc.) -- University of Stellenbosch, 1993.en_ZA
dc.description.abstractENGLISH ABSTRACT: This study concerns the modification of polyvinyl alcohol (PVAL) by raction with potassium persulphate (K2S2O8) to form tolerant insolubale nanofiltration membranes on tubular polyther sulphone (PES) ultrafiltration substrates. These membranes gave 50 5 retention and 40 lmh flux for a 2000ppm NaCI feed, and 75% retention and 40 lmh flux for feed containing 1000 ppm MgSO4 (2 MPa, 20 degrees Celcius, 1,3 m/s). The effect of the production variables on membrane performance is discussed. The reaction of PVAL with K2S2O8 was characterized by various spectroscopic and other techniques.en_ZA
dc.description.abstractAFRIKAANSE OPSOMMING: Hierdie studie behels die modifisering van poliviniel alkohol (PVAL) deur reaksle met kalium persulfaat (K2S2O8) om duursame onoplosbare nannofiltrasie membrane op buisvormige poli-eter sulfoon (PES) ultrafiltrasle substrate te produseer Die membrane het 50% soutverwerpmg en 40 lmh viced golewer op 'n 2 000 dpm NaCl voerstroom, en 75% soutverwerpmg en 40 lmh vtoed op·n voersrroom bestaande uit 1 000 dpm MgSO₄ (2MPa, 20 degrees C. 1,3 m/s).Die invloed wat die verskeie vervaardigIngsverandertikes op die membraaneienskappe uitoefen word bespreek Die reaksie van PVAL met K2S2O8 is gekaraklerlseer deur verskeie spectroskopiese en ander tegniek.af_ZA
dc.format.extent169 pages : illustrations.en_ZA
dc.identifier.urihttp://hdl.handle.net/10019.1/58112en_ZA
dc.language.isoen_ZAen_ZA
dc.publisherStellenbosch : Stellenbosch Universityen_ZA
dc.rights.holderStellenbosch Universityen_ZA
dc.subjectPolyvinyl alcoholen_ZA
dc.subjectReverse osmosisen_ZA
dc.subjectPolymer scienceen_ZA
dc.subjectUCTDen_ZA
dc.titlePolyvinyl alcohol and amine-modified polyvinyl alcohol nanofiltration and reverse osmosis membranesen_ZA
dc.typeThesisen_ZA
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