| 摘要 |
PURPOSE:To make suppressing resolution of radioactive nuclei for a long time possible by selectively absorbing ion including radioactive iodine and/or technetium with using an absorption processing agent constituted of inorganic ion exchanger. CONSTITUTION:Waste generated from a reactor facility is brought into contact with an absorption treating agent constituted of an inorganic ion exchanger. And ions including radioactive nuclei iodine and/or technetium as structure atoms is selectively absorbed and fixed. As for inorganic ion exchanger, one including at least one of dismuth nitrate hydroxide (III), dismuth nitrate hydroxide (III) expressed with the equation I, complex oxide of aluminum and magnesium expressed with the equation II and zirconium hydrate, or one of them and antimony hydrate combination are used. As the inorganic ion exchanger including the radioactive iodine and technetium obtained in this process is a stable compound, it does not release the nuclei again after the treatment. |
