SOLIDIFICATION PROCESSING METHOD FOR RADIOACTIVE WASTE

PROBLEM TO BE SOLVED: To provide a method for efficiently disposing various kinds of radioactive wastes containing a silica component generated from a nuclear power plant.SOLUTION: A solidification processing method for radioactive waste includes: (i) a mixing step of adding a compound selected from...

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Hauptverfasser:	TANIGUCHI KAZUFUMI, YAMAMOTO TATSUMI, NOJIRI KOJI, OKAZAKI JUNYA, SASAKI TADASHI, YAMAZAKI KATSUO
Format:	Patent
Sprache:	eng
Schlagworte:	DECONTAMINATION ARRANGEMENTS THEREFOR NUCLEAR ENGINEERING NUCLEAR PHYSICS PHYSICS PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT TREATING RADIOACTIVELY CONTAMINATED MATERIAL
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for efficiently disposing various kinds of radioactive wastes containing a silica component generated from a nuclear power plant.SOLUTION: A solidification processing method for radioactive waste includes: (i) a mixing step of adding a compound selected from a group consisting of an alkaline metal hydroxide and an alkaline earth metal hydroxide and water to the radioactive waste containing the silica component and mixing with them; (ii) a kneading step of adding a hardening stimulant made of a compound selected from a group consisting of a solidification material containing a latent hydraulic material as a main component, the alkaline metal hydroxide and the alkaline earth metal hydroxide to a mixture obtained in the mixing step and kneading them; and (iii) a solidifying step of solidifying a kneaded material obtained in the kneading step.