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Removal Characteristics of Cadmium in Micellar Enhanced Ultrafiltration Using DCA  

이호원 (제주대학교 청정화학공학과)
김승건 (제주대학교 식품공학과)
강영주 (제주대학교 식품공학과)
Publication Information
Membrane Journal / v.13, no.4, 2003 , pp. 211-218 More about this Journal
Abstract
The removal characteristics of cadmium in micellar enhanced ultrafiltration (MEUF) were investigated by using an anionic biosurfactant, deoxycholic acid (DCA). The ultrafiltration experiments were performed in a batch-type stirred cell. The ultrafiltration membranes used were Millipore YM1, YM3, YM10, and YM30 which had a difference in molecular weight cut-off. The presence of cadmium ion in DCA solution tends to reduce the critical micell concentration considerably and increase the micell size. The molecular weight cut-off of ultrafiltration membrane had a minimal effect on cadmium removal whereas DCA/Cd ratio had a substantial influence. When DCA/Cd ratio was 3, the removal efficiency of cadmium was more than 99.6%. A relative flux, which is defined as ratio of the flux for a separation trial to that of deionized water run using the same piece of membrane, decreased in the order of YM3 > YM1 > YM10 > YM30.
Keywords
micellar enhanced ultrafiltration(MEUF); deoxycholic acid(DCA); Cadmium;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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