Removal of Trivalent Chromium By Amberjet 1200 and Lewatit CNP 80

Abstract

In the present study, the removal of Chromium (Cr)(III) ions from aqueous solutions was investigated. Experimental investigations were undertaken using the ion-exchange resins Amberjet 1200 (strongly acidic cation exchange resin) and Lewatit CNP 80 (weakly acidic cation exchange resin). The batch removal of Cr(III) from aqueous solutions under different experimental conditions was used in this study. The effects of initial pH, contact time and resin dosage on the uptake of Cr(III) ions have been studied. The maximum percentage of metal removal was attained after about 1 h. The uptake of Cr(III) ion depended on pH. The resins were more selective at pH 2,8 for Cr(III) onto Lewatit CNP 80 and pH 3,1 for Cr(III) onto Amberjet 1200.