Heavy metals removal from copper smelting effluent using electrochemical filter press cells
2011
Basha, C Ahmed | Somasundaram, M. | Kannadasan, T. | Yi, Ch'ang-u
The performance of electrochemical filter-press cells, operated in a batch recirculation mode, for the removal of heavy metals from copper smelting effluent was investigated. The effect of flow rates (26, 35, 46, 53 and 61mLmin⁻¹) and current density (1, 2 and 3Adm⁻²) on percentage removal of heavy metals and energy consumptions were studied. Significant removal of heavy metals (more than 99%) and the specific energy consumption of 15.24kWhkg⁻¹ have been achieved for the current density of 2Adm⁻² and the flow rate of 61mLmin⁻¹. In the present work, the removal of arsenic by electrochemical ion exchange technique was also studied. The operating parameters of 12.5V and a circulation rate of 10.7mLmin⁻¹, has been observed better results in the removal of arsenate/arsenite ions from the effluent (more than 99%) with a specific energy consumption of 152.22kWhkg⁻¹.
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