REMOVAL OF CHROMIUM (VI) BY ACTIVATED CARBON DERIVED FROM MANGIFERA INDICA

Shashikant.R.Mise, Sugunashree.S.M

Abstract: The removal of chromium (VI) from synthetic sample by adsorption on activated carbon prepared from Mangifera Indica (mango) seed shell have been carried out at room temperature 32 ± 1° C. The removal of chromium (VI) from synthetic sample by adsorption on chemical activation (Zinc chloride) with Impregnation ratio’s (I.R) 0.25, 0.50, 0.75 for optimum time, optimum dosages and variation of pH was studied. It is observed that as dosage increases the adsorption increased along with the increase in Impregnation ratio. It was also noted that as I.R. increases the surface area of Mangifera Indica shell carbon increased. Hence the maximum removal efficiency is obtained at I.R ratio of 0.75. The optimum contact time, dosage and pH for carbon with I.R-0.75 was 40min, 150mg and 1.50 with removal efficiency of 99.00%, 99.20% and 99.60% respectively.

Keywords: Chromium (VI), Contact time, Dosage, Kinetics, pH, Mangifera Indica

DOI: https://doi.org/10.15623/ijret.2013.0213064