Kinetics and Adsorption of Removal of Ni (II) ions by using Egg Shell Powder

The removal of Nickel (II) ions from wastewater by adsorption using eggshell powder was investigated. The adsorbent is cheap and easily available. The main parameters like solution pH, adsorbent dose, adsorbent size, initial concentration of metal ions, initial volume of effluent, agitation speed and temperatures influencing the adsorption process, were examined. The adsorption kinetics like Pseudo first order, pseudo second order, intra particle diffusion, fractional power and Elovich’s equations were applied. The adsorption isotherms like Freundlich, Langmuir, Temkin and BET were also studied. Significant results on the removal of Ni (II) ions were achieved up to 90%. Fractional model and Temkin isotherm were applied and studied in this process.