Authors
Abstract
The removal of Cd(II) onto granular activated carbon (GAC) and kaolinite in single
component systems has been studied using batch adsorption. Batch adsorption studied were
carried out under various amount of GAC and Kaolinite, Cd(II) ion concentration, pH and
contact time. The experimental data was analyzed by Langmuir, Freundlich and Redlich-
Peterson isotherms. The equilibrium adsorption capacity of Cd(II) was determined from
Langmuir isotherm equation and found to be 3.002 mg/g for GAC and 1.837 mg/g for
kaolinite. Pore diffusion model for batch adsorption is used to predict the concentrationdecay
curve for adsorption of Cd(II) onto GAC and kaolinite.
Keywords
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