Compositions – Radioactive compositions
Patent
1986-02-06
1988-10-04
Terapane, John F.
Compositions
Radioactive compositions
106 74, 106 77, 106 78, 210682, 210685, 210683, 210751, 252629, 252631, 423 2, 423 11, 423333, G21F 916, G21F 908, C01G 5600, C01G 5700
Patent
active
047754958
ABSTRACT:
The process of the present invention comprises adding an alkaline earth metal hydroxide such as barium hydroxide to a radioactive liquid waste containing sodium sulfate as the main component to convert the latter into an insoluble alkaline earth metal salt such as barium sulfate, adding silicic acid to by-product sodium hydroxide to prepare water glass and solidifying the radioactive insoluble alkaline earth metal salt with the water glass. According to this process, exudation of radioactive substances from the solid can be prevented and the solid having a high durability can be obtained at a low cost.
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Baba Tsutomu
Izumida Tatsuo
Kikuchi Makoto
Noie Akihiko
Sonobe Masaru
Hitachi , Ltd.
Locker Howard J.
Terapane John F.
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