Removal of aluminum from aqueous solutions by adsorption on date-pit and BDH activated carbons.

The use of a locally prepared date-pit activated carbon and the commercially available BDH activated carbon for the removal of trivalent aluminum from aqueous solutions was examined at various conditions. In the acidic range of aluminum solubility (up to pH value of 4), both adsorbents exhibited maximum (almost equivalent) capacities for adsorbing aluminum at the pH value of 4. Date-pit activated carbon was more capable of adsorbing traces or low concentrations of aluminum ions in the solution.