Print ISSN: 1681-6900

Online ISSN: 2412-0758

Keywords : Pore diffusion model

Removal of Cadmium(II) Onto Granular Activated Carbon And Kaolinite Using Batch Adsorption

Jenan A. Al-Najar; Ramzy S. H; Zaydoon M. S

Engineering and Technology Journal, 2010, Volume 28, Issue 10, Pages 2070-2080

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.