Comparison of adsorption Efficiency of Asphalt derived Activated carbon and commercial activated carbon for removal of Zn2+ Cr 6+ and Pb2+ from waste water

摘要

Attempts were made to compare the adsorption efficiency of Asphalt derived Activated carbon and commercial activated carbon (Calgon carbon F-300) with respect toadsorption of Zn2+ Cr6+ and Pb2+ waste water. Freundlich and Langmuir adsorption isothermwas used to analyze the adsorption efficiencies of the two activated carbons. The result of percentage adsorption and the two isotherms indicate that, the efficiency of Acid activated Asphaltic carbon is comparable with commercial activated (Calgon carbon F-300)Thus, the potential for using Asphaltic (refining residue) may be valuable resources for removal of Zn2+ Cr 6+ and Pb2+ from wastewater.