European Journal of Biomedical and Pharmaceutical Sciences

SURFACE MODIFIED CHARCOAL FOR SCAVENGING OF MANGANESE (II) METAL IONS FROM AQUEOUS SOLUTION

A.S. Dhote, A. K. Wanjari*, U. E. Chaudhari and S. S. Belsare

ABSTRACT

Adsorption is one of the most effective physical processes for removal of toxic metal from waste water. Adsorption has been proved to be an excellent way to treat industrial waste effluents, offering significant advantages like the low-cost, availability, profitability, easy of operation and efficiency. In this paper four parameter isotherm model namely Langmuir, three parameters namely Freundlich and Temkin were applied to describe the isotherm and to calculate their constant. The best estimation of the parameters of these models by non-linear regression analysis was obtained. A comparison between four and three parameters isotherm was reported. The characteristic parameter of each isotherm and related coefficient of determination (R2) have been determined. The effect of various parameters influencing the Mn(II) adsorptions such as effect of pH, Contact time, temperature, adsorbent dose have been studied. Maximum adsorption found to be 87.26 at pH 11.5. The results indicate that surface modification with Sodium dodecyl sulfate (SDS) could be used to significantly enhance the capacity of granulated activated charcoal to adsorb Mn(II) metal ion.

Keywords: Granular Activated Carbon, Sodium dodecyl sulfate, Adsorption, Impregnation, Isotherm, Manganese.