REMOVAL OF COPPER AND CADMIUM IONS FROM SYNTHETIC SOLUTION BY ADSORPTION USING BAGASSE FLY ASH AS ADSORBENT

Abstract

The present study has been carried out on removal of copper and cadmium ions from synthetic waste water using bagasse fly ash (BFA) as an adsorbent. Study of various parameters like pH, adsorbent dose, contact time, initial metal ion concentration was done. Batch experiments were conducted for study purpose. pH = 6.0 was found to be optimum for the removal of both metal ions. Adsorbent dose = 4g/l and contact time of 90 min has been found to be optimum for copper removal, whereas adsorbent dose = 5g/l and contact time = 300 min found to be optimum for cadmium removal. Maximum removal was around 98.3% for copper ions and 98.6% for cadmium ions. Hill isotherm best fitted with experimental data for both copper and cadmium ions removal. Pseudo second order kinetics best fitted for both copper and cadmium ions removal.