Adsorptive study of Cadmium removal from synthetic solution using newly developed activated carbon from bark of Butea monosperma

Abstract

Due of the rapid growth of the social economy and increase in the population, human beings continue to undertake processing and commercial manufacturing activities of heavy metals which has caused serious damage to the environment and human health. One of the most toxic heavy metal ion that are non biodegradable is Cadmium. Cadmium is agglomerate in blood causes verisimilitude of symptoms such as high blood pressure, kidney damage and destruction of red blood cell. There are several technology like filtration,ion exchange, reverse osmosis, solvent extraction and adsorption are available for removal of cadmium. Among all adsorption is best promission low cost method. In the current investigation, the adsorption potentiality of activated carbon developed from Butea monosperma bark for evacuation of cadmium from waste water has been studied regarding to different parameters like the pH effect, adsorbent dose, contact time and initial metal ion concentration. The maximum cadmium removal of 93.50% is obtained under optimal operating conditions at pH 6.0. Cadmium removal from synthetic solution increases with an increase in contact time and equilibrium was obtained at 120 minute. The higest adsorption of cadmium was observed at 6.0 g/L of dose of adsorbent. This study established evidence that the newly developed activated carbon from Butea monosperma bark could be utilized as a economical and more energy efficient adsorbent to replace cadmium from aqueous solution and can be successfully used for wastewater treatment.