Vol. 2, Issue 7, Part C (2016)

Abstract
Heavy metals like lead, mercury, zinc, copper, nickel etc. present in waste water and industrial effluent is major concern of environmental pollution. Lead is highly toxic to human’s body systems causing mental deficiency, brain damage, anemia as well as behavioural problems. According to Environmental Protection Agency (EPA) the permissible level of lead (II) in drinking water is 0.05 mg/L-¹. Contamination of water by toxic metal is a worldwide problem. Adsorption is an effective purification and separation technique used in industry especially in water and waste water treatments. Many methods and materials are used in heavy metal removal from water. These methods have several disadvantages and advantages.