| 摘要 |
PURPOSE:To enable efficient removal of ions of a radioactive nuclide, by using a radioactivity removing material filling device in which an ion adsorption substance is fixed on a fibrous unsoluble high polymer compound in combination with a hollow yarn film filter and a desalting column. CONSTITUTION:A tank 1 for receiving water to be treated, a hollow yarn film filter 2, a radioactivity removing material filling device 3, a desalting column 4 and a storage tank 5 are arranged sequentially and a radioactive waste liquor is passed from the tank 1. The radioactivity removing material filling device 3 is filled with a radioactivity removing material in which a chemical substance with a higher adsorption capacity -- Co-60, Mn-54, Fe-59 and Ce-144 -- in the form of ion is fixed on a fibrous unsoluble high polymer compound, for example, acrylic fiber having MnO2 supported and fixed thereon. It is also filled with a radioactivity removing material in which a chemical substance with a high adsorption capacity -- Cs-137, Zn-65, Ce-144 and Fe-59 -- in the form of ion is fixed on the fibrous unsoluble high polymer compound, for example, acrylic fiber having a ferrocyanate compound supported and fixed thereon.
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