Journal
DESALINATION
Volume 167, Issue 1-3, Pages 101-110Publisher
ELSEVIER
DOI: 10.1016/j.desal.2004.06.117
Keywords
micellar-enhanced ultrafiltration; chromate; ferriccyanide; cetylpyridinium chloride; competitive bind
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Competitive binding characteristics of anionic metals, chromate and ferriccyanide, with cetylpyridinium chloride micelles were investigated in micellar-enhanced ultrafiltration (MEUF). In MEUF process, removal of pollutants depends on the bind of pollutants to surfactant micelles which increases with the valence of anions. The valence for chromate is -2, while that for ferriccyanide is -3. In chromate/CPC and ferriccyanide/CPC system, the removal of ferriccyanide was higher than that of chromate at the same molar ratio of surfactant due to the difference of valence. In the chromate/ferriccyanide/CPC system, the removal of chromate was inhibited by the ferriccyanide at the low molar ratio of CPC (
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