Abstract
Abstract CoTreat is a commercial titanate material that is effective for the removal of 60Co and other activated corrosion product nuclides from nuclear waste effluents. A basic study has been carried out to investigate the uptake mechanism and selectivity of CoTreat material for trace sorption of 54Mn, 59Fe, 57Co, 63Ni, 65Zn and 110mAg. The analyses of the trace sorption isotherms indicate that except for 110mAg the uptake mechanism for the trace metal ions is surface complex formation. The selectivity of the material for the metal ions studied decreases in the order Fe>Ag>Mn>Co ≈Ni>Zn. Except for Fe, the selectivity thus decreases with the increasing tendency of the cations to hydrolyse.
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