Method of solidifying radioactive liquid wastes

Purpose: To solidify radioactive liquid wastes stably in glass while suppressing the evaporization of volatiling components such as cesium. Method: To a high level radioactive liquid wastes contained in a liquid waste tank, zeolite incorporated with copper ferrocyanide is supplied in an amount depending on the amount of cesium in the liquid wastes from an absorbent storing vessel, stirred by a stirrer and then supplied to a storing tank. Sodium silicate solution in a sodium silicate solution tank and boric acid in an additive tank are supplied to the storing tank and admixed with the liquid wastes by a stirrer. After the completion of gelation, the stirring is interrupted and the storing vessel is dried in a heating furnace at 2000C. After the completion of the drying, the temperature is increased to 11000C to produce glass solidification products. (Yoshino, Y.)