The sorption of cadmium and copper onto bone char has been studied in single component systems. Bone char-type Brimac 216 used throughout all the experiments. Two types of experiments were performed, namely, equilibrium sorption isotherm studies and agitated batch kinetic studies. Equilibrium isotherms were determined for the single component sorption of cadmium and copper onto bone char. The isotherms were analyzed using the Langmuir, Freundlich and Redlich-Peterson equations and the Redlich-Peterson equation gave the highest correlation coefficients for both systems. The effect of initial metal ion concentration on the rate of metal ion sorption with contact time was studied using an agitated, baffled, 1.7 dm~3 sorber vessel. The contact time data were analyzed using the Lagergren first order kinetic model and a pseudo-second order kinetic model. The pseudo-second order kinetic model gives a higher correlation coefficient for a longer contact time period of the sorption process.
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