Potential Use of Bone Charcoal in the Removal of Antimony and Europium Radioisotopes from Radioactive Wastes

摘要

Bone charcoal has been shown to be a good sorbent for 124Sbln and 124Sbv from liquid organic radioactive wastes and for the retention of l52Eu'" from aqueous wastes. Physical sorption was suggested to be the main mecha-nism operating for radioantimony isotopes with appreciably higher fixation on the sorbent when loaded from the liquid organic radwaste. In contrast, chemisorption was postulated as the main operating mechanism for I52Eu"' with a higher and irreversible fixation on bone charcoal from a neutral aqueous medium.