Sorption behavior of human bone powder towards 60 Co and 65 Zn

Human bone powder 30-40 Μ in diameter was prepared from human bone femurs as fat-free (FFB), protein-free (PFB) or left untreated as raw bone powder (RB). The sorption behavior of human bone powder towards60 Co and 65 Zn was studied. The uptake changed with the type of bone powder to be : PFB>FFB>RB. The increase in the concentration of cobalt(from 10-6 to 10-1 Mole/litre)and of zinc (from 10-7 to 10-4 M/1) increased the uptake of 60 Co and 65 Zn. Freunclich-type isotherm was successfully applied on the uptake data of both ions and the slopes of these isotherms were, nearly, directly proportional to their uptake values. The uptake was found to be less influenced by the PH. In case of cobalt the uptake increased till PH 4, followed by a plateau till PH 8 while in case of zinc the PH effect is much less pronounced