Chicken bone ash as an efficient metal biosorbent for cadmium, lead, nickel, and zinc from aqueous solutions

Abstract

Chicken bone ash (CBA) is the combustion residues of chicken bone and it has been investigated as a metal biosorbent for cadmium, lead, nickel, and zinc from aqueous solutions. The effect of various factors as contact time, amount of CBA, solution pH and initial concentration on adsorption process such of metal ions was studied at room temperature to optimize the conditions for maximum adsorption. Also, successful application in removing these metal ions was achieved by using real wastewater samples. This study indicates that CBA has the potential to become an effective and economical adsorbent for the removal of these metal ions.

Keywords:

• Chicken bone ash
• Biosorbent
• Heavy metals adsorption

Acknowledgments

Thanks are due to the Research Council of Isfahan University of Technology and Center of Excellency in the Chemistry Department of Isfahan University of Technology for supporting this work.