ABSTRACT
Water pollution due to toxic heavy metals has been a major cause of concern for environmental engineers. The industrial and domestic waste water is responsible for causing several damages to the environment and adversely affecting the health of the people. Several episodes due to heavy metal contamination in aquatic environment increased the awareness about the heavy metal toxicity. Metals can be distinguished from other toxic pollutants, since they are nonbiodegradable and can accumulate in living tissues, thus becoming concentrated throughout the food chain. A variety of industries are responsible for the release of heavy metals into the environment through their wastewater. These include iron and steel production, the nonferrous metal industry, mining, and mineral processing.
