Chromium Removal from Aqueous Medium Using Modified Sawdust

Abstract

One of the serious environmental issues is the presence of toxic heavy metals contaminants in water bodies because of discharge of untreated heavy metals due to urbanization, combustion byproducts, automobile emissions, mining activities.Chromium is widely used in many industries and usually present in high concentration in the aqueous medium. This study involved the investigation of the adsorption of hexavalent form of the heavy metal (Cr) by modified teakwood sawdust. The study demonstrated that the teak wood sawdust has a moderate potential to remove hexavalent chromium.The equilibrium data of adsorption very well fitted into the models and the maximum loading capacity was obtained from adsorption isotherms by applying the Langmuir model.

Keywords: Hexavalent chromium, sawdust, adsorbent,aqueous solution,batch adsorption experiments.