Tannery effluent is among one of the hazardous pollutants of industry. Major problems are due to wastewater containing heavy metals, toxic chemicals, chloride, lime with high dissolved and suspended salts and other pollutants. Tanneries generate wastewater in the range of 30 - 35 L/kg skin / hide processed with variable pH and high concentrations of suspended solids, BOD, COD, tannins including chromium. Chromium is the major constituent of tannery effluent, which is the heavy metal and highly toxic to aquatic fauna. Chromium is not known to accumulate in the bodies of fish, but high...