ABSTRACT
Heavy metals are toxic to aquatic organisms even at very low concentrations. Environmental contamination by toxic metals is of great concern because of health risks on humans and animals like high blood pressure, irritation, depression, sleep disabilities, [2] etc., Among the toxic metal ions chromium is one of the common contaminants which gains importance due to its high toxic nature even at very low concentration. Water pollution by chromium is of considerable concern, as this metal has found widespread use in electroplating, leather tanning, metal finishing. The conventional methods used to remove Chromium from aqueous effluents, include chemical precipitation, ion exchange, electro flotation, membrane separation, reverse osmosis, electro dialysis, solvent extraction, etc. [1]. Many conventional methods for removing of metal ions from Industrial effluents suffer with high capital costs of material [4]. Therefore, these are not suitable for the small scale industries.
