摘要:
Disclosed is a method for treating a radioactive organic waste, the radioactive organic waste including a cation exchange resin adsorbing radionuclide ions, the method including the step of bringing the radioactive organic waste into contact with an organic acid salt aqueous solution containing an organic acid salt and whereby desorbing the radionuclide ions from the cation exchange resin, in which the organic acid salt contained in the organic acid salt aqueous solution includes a cation that is more readily adsorbable by the cation exchange resin than hydrogen ion is. This enables reduction in concentration of a radioactive substance in the radioactive organic waste and reduction in amount of a high-dose radioactive waste.
摘要:
In a radioactive waste solidification method, radioactive waste (for example, zeolite to which Cs-137 was adsorbed) and glass raw materials (soda lime glass) are supplied into the solidifying vessel (3). The solidifying vessel (3) filled with the radioactive wastes and glass raw materials is disposed in an adiabatic vessel (7). A lid is attached to the adiabatic vessel (7) to seal it. The radioactive waste and glass raw materials in the adiabatic vessel (7) are heated by thermal energy generated due to radiation emitted from Cs-137. The glass raw materials are melted and osmose in clearances among the radioactive waste, producing a vitrified radioactive waste. Since the radioactive waste and glass raw materials are disposed in the adiabatic vessel (7), they are uniformly heated and a uniform vitrified radioactive waste is obtained. No melting facility is needed. The radioactive waste solidification method can produce a uniform vitrified radioactive waste through uniform heating without having to use a melting facility.
摘要:
Disclosed is a method for treating a radioactive organic waste, the radioactive organic waste including a cation exchange resin adsorbing radionuclide ions, the method including the step of bringing the radioactive organic waste into contact with an organic acid salt aqueous solution containing an organic acid salt and whereby desorbing the radionuclide ions from the cation exchange resin, in which the organic acid salt contained in the organic acid salt aqueous solution includes a cation that is more readily adsorbable by the cation exchange resin than hydrogen ion is. This enables reduction in concentration of a radioactive substance in the radioactive organic waste and reduction in amount of a high-dose radioactive waste.