Abstract
Heavy metal from waste water can be removed by various physical, chemical and biological treatment methods. Nickel is one of the important heavy metal emitted from electroplating, battery, and catalyst industries. Biosorption of Nickel is effective and low cost treatment technique. It uses agricultural waste and there by reduces solid waste problem to a considerable extent. The method has unique advantage in its ability to adopt for different geographical areas according to availability of agricultural waste. The investigations show that the agricultural waste such as banana, mosambi peels, ground nut, coconut shells and rice husk has been used for Nickel removal with satisfactory to excellent results. By using these materials the percentage Nickel removal to the extent of 99 percent was observed by investigators. Also aspects such as isotherms, kinetics, modeling of this process are area of study for researchers because of the role of these aspects in optimum and effective removal of Nickel. Present review summarizes studies and research on biosorptive removal of Nickel from waste water.
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