An Experimental Study on Removal of Hexavalent Chromium from Water and Organic Solvent Mixed Media by Adsorption Using Weak Base Anion Exchanger Tulsion A-2X (MP)

Abstract

The removal of a most common toxic, environmental pollutant and carcinogen chromium (VI) was studied by batch technique for the adsorption and ion exchange method from water and organic solvent mixed media under various conditions like interaction time, pH, effect of organic solvents and temperature. Maximum adsorption of chromium (VI) on Tulsion A-2X (MP) was in the optimum pH range of 5.0-5.5. Increase in temperature decreased the adsorption of chromium (VI). Interaction time indicated that about 70% removal of chromium(VI) was within 15 min. Chromium (IV) adsorption was discussed based on first order kinetics and adsorption isotherms. Kinetics and adsorption models gave the best feasibility data of chromium(VI) and it was well interpreted by separation factor R_L between 0 to 1. Thus, it is concluded that the ion-exchange resin Tulsion A-2X (MP) could be employed in the removal of chromium(VI) from water and organic solvent mixed media.