The performance of ultrafiltration membranes pretreated by polymers
1988; Elsevier BV; Volume: 70; Issue: 1-3 Linguagem: Inglês
10.1016/0011-9164(88)85057-4
ISSN1873-4464
AutoresK.J. Kim, Anthony G. Fane, C.J.D. Fell,
Tópico(s)Polymer Surface Interaction Studies
ResumoThe fouling of ultrafiltration(UF) membranes by protein has been reduced by surface pretreatment with various polymers. In most cases the treatment provided an increase in initial UF flux and a slower flux decline. The ultrafiltration performance of the treated membranes appears to be influenced by the molecular configuration and size of the polymer as well as its interfacial structure. Methylcellulose(MC) was found to be the most effective of polymers tested in enhancing UF flux, showing an average flux advantage of 30–40% for first usage. For multiple cycles of usage the benefits increased up to 100% after 5 cycles, due to the reduced amount and reversibility of the fouling protein deposit.
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