Removal of Co(II) and Cr(II) from Aqueous Solution Using Ferronia elefuntum Fruit Shell Substrate

Abstract

Ferronia elefuntum fruit shell substrate was found to have good sorption capacity for cobalt(II) and chromium(VI). Studies indicate that the sorption of Co²⁺ and Cr⁶⁺ increases with the increase in pH value and a contact time of 60 min was found to be optimum. The effect of concentration shows that fruit shell substrate can remove Co²⁺ and Cr⁶⁺ ions from water.