| 摘要 |
PROBLEM TO BE SOLVED: To convert organic waste liquid including radioactive materials to a solid proper for stable storage for a long term. SOLUTION: To organic waste liquid 1 of tributyl phosphate and dodecane as main components and including radioactive materials, an epoxy base resin 2 and a hardening agent 3 are added and mixed so that the epoxy resin is crosslinked in the organic waste liquid 1 and the whole organic waste liquid is solidified. The epoxy base resin 2 and the hardening agent 3 are a combination to promote a crosslinking reaction at ambient temperature. As the hardening reaction causes heating, the inside of the solid shows temperature rise. The temperature in this situation should be controlled not to rise over the boiling point or the flash point of the organic waste liquid 1. An optimum epoxy base resin 2 for it is bisphenol A type and a hardening agent 3 for it is alicyclic amine. The organic waste liquid 1 is put in a drum 5 and the liquid epoxy base resin 2 and the hardening agent 3 are added. Stirring is continued until the crosslinking reaction proceeds to some extent and the organic waste liquid 1 and the resin are not separated. After completion of solidification, the drum 5 is sealed. COPYRIGHT: (C)2007,JPO&INPIT
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