Abstract
The ionic exchange (IE) model has been used to predict the influence of positive metal ion complexation upon micellar-enhanced ultrafiltration (MEUF) results. The three different systems studied were sodium dodecyl sulfate-ethylene diamine tetra-acetic acid (EDTA)-Cu(II); SDS-Tartrate ion-Cu(II), and the hydrolysis of the uranyl ion-SDS. In the appropriate experimental conditions, 98% of Cu(II) is recovered in the filtrate with the use of EDTA. The IE model allows for the accurate prediction of Cu(II) release by the addition of tartrate ion as a function of pH. In the case of uranyl ion hydrolysis, the IE model showed that the UO2(OH)2species is not predominant under the experimental conditions.
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