Abstract
It is desirable for the flocculation of radioactive waste water to achieve a high removal at a neutral condition. The utilization of cellulose ion exchanger as the agent for the bentonite flocculation has been interested and the decontamination properties of cellulose ion exchanger-bentonite flocculation have been studied with respect to the removal of radioactive nitrosylruthenium ions. The DEAF, cellulose-bentonite flocculation is especially effective in removing the nitronitrosylruthenium complex, achieving a removal higher than 98%, where the formation of“organo-clay complex”through the combination of DEAE cellulose and bentonite particles is assumed to play an important role in raising the removal of radioactive ruthenium, possibly because of the high adsorption capacity of“organo-clay complex”against the complexed anion [RuNO (NO2) 4OH] 2-.
