Ni is a silvery white metal, shiny surface, hard, malleable, ductile and spinning. In industry, Ni is often used to make stainless steel and corrosion-resistant alloys, rechargeable batteries, catalysts, electrodes, producing paints, coins ... Although Ni is also an essential micronutrient for action things and people, involved in the synthesis of vitamin B12, as well as an activator of some enzymes, but at high concentrations, Ni cause nausea, headache, dry cough, cyanosis, rapid breathing [1] .The scientists also have identified the causes Ni is the cancer of the lungs, nose and bones. Therefore, the need to remove Ni in waste water before discharge into the receiving water to limit the conversion Ni via bio-energy networks and environmental protection.
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