Abstract
This article deals with the biosorption of nickel metal on the surface of rice husk and its acid treated form under batch experimentations. Various parameters were studied such as time, concentration of synthetic solution, pH and bio sorbent dose to determine the effect of adsorption of nickel metal on the surface of rice husk. Equilibrium time was found to be 92 min. The amount of nickel adsorbed increased with increase in their contact time. It was found that acid treated rice husk has good ability to remove highest amount of nickel in comparison with raw form of rice husk. The percentages for the removal of nickel was achieved as 86% and 66% for treated and raw form of rice husk respectively. It could be concluded that the removal efficiency was enhanced by increasing wastewater initial concentration in the first percentage of adsorption and then decreased due to saturation of rice husk particles.
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