Part of #Potential of nano structure alumina for removal of copper (II) from aqueous solution# :
Publishing year : 2009
Conference : First International Conference on Wastewater Recycling and Water Recycling, Technologies and New Discoveries
Number of pages : 7
Abstract: This study investigates the potential use of nano-structured alumina as new adsorbents for the removal of copper ions from water and wastewater. The effect of important variables such as adsorbent dosage, initial metal ion concentration, pH and contact time were experimentally studied to evaluate adsorption capacity, kinetics and equilibrium. Experimental results showed that optimal adsorption was performed at acidic pH = 4. The time required for removal of metal ions from aqueous solutions was about 180 minutes. The batch sorption kinetics has been tested and the applicability of the Langmuir, Freundlich, and Tempkin adsorption isotherms for the present system has been tested at 25 2 C. The adsorption capacity of the Cu (II) ions was calculated from the isotherm and found to be 111 mg / g. The Langmuir isothermal model is found to be the most suitable one for Cu2 + adsorption using nano structured alumina. This study showed that adsorption of copper by nano structured alumina is a promising technique and can be used as a good and new adsorbent for wastewater treatment.