Effect of Alcohols on the Retention Mechanisms of Cd and Zn on Wyoming Bentonite and Illite

The effects of ethanol- and methanol-water mixtures onZn and Cd sorption onto bentonite and illite wereinvestigated at low initial metal concentration (e10-5 M)and low ionic strength (2.5 mM Ca(NO3)2). For all cosolventfractions, the percent coverage of Zn and Cd to clayminerals was low (<5%) and independent of the solutiondielectric..