Volume : IV, Issue : X, October - 2014

Removal of Cadmium from Wastewater using Coal Fly ash

Dr M. K. Dwivedi, Dr. I. P. Tripathi, Atul Kumar Dwivedi

Abstract :

This paper deals with the utilization of coal fly ash as a low cost adsorbent for the removal of cadmium from wastewater. As much as 80% removal of cadmium is possible in about 5 hours under the batch test conditions. Effect of various operating variables, viz., solution pH, adsorbent dose, adsorbate concentration,temperature on the removal of cadmium has been studied. A dose of 10 g/L of adsorbent was sufficient for the optimum removal of metal ion. The material exhibits good adsorption capacity and the adsorption data follow the Langmuir model better then the Freundlich model. The adsorption of metal ion decreased with increasing temperature indicating exothermic nature of the adsorption process. Isotherms have been used to determine thermodynamic parameters of the process, viz., free energy change, enthalpy change and entropy change.

Keywords :

Article: Download PDF   DOI : 10.36106/ijar  

Cite This Article:

Dr M. K. Dwivedi, Dr. I. P. Tripathi, Atul kumar Dwivedi Removal of Cadmium from Wastewater Using Coal Fly Ash Indian Journal of Applied Research, Vol.4, Issue : 10 October 2014

Number of Downloads : 607

References :