Removal Capacity of Cadmium in Aqueous Solution via Activated Carbon of Coke Breeze and Date Seeds

This paper focused on preparation activated carbon from industrial and agricultural wastes, and physico-chemical properties were carried out to show adsorption process. The adsorption of cadmium from liquid solutions onto activated carbon of coke breeze and date seeds has been investigated in the current study. The process was studied in a batch system with respect to the contact time, temperature, adsorbent weight, initial cadmium concentrations, and PH does. The results also indicated that process of cadmium uptake by activated carbon of coke breeze or activated carbon of date was physical adsorption process. The equilibrium data for date seeds indicated that it fitted both Freundlich and Langmuir models. However, adsorption onto carbon of coke breeze or activated carbon of date seeds fitted Langmuir models better based upon the higher value of regression R2 obtained, and adsorption process for ACs used followed pseudo second order reaction. These adsorbents were found to be both effective and economically viable.