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    • 41. 发明专利
    • Method and device for treating radioactive waste
    • 用于处理放射性废物的方法和装置
    • JP2008039412A
    • 2008-02-21
    • JP2006209870
    • 2006-08-01
    • Toshiba Corp株式会社東芝
    • YAMASHITA TAKEOMURATA EIICHIMIKURA MICHITAKAHARUGUCHI YOSHIKOMIYAMOTO MASAYASAKAI HITOSHI
    • G21F9/06G21F9/10G21F9/16G21F9/30
    • PROBLEM TO BE SOLVED: To provide a method and a device for treating radioactive waste to effectively separate and recover uranium, transuranium elements or radioactive nuclides from radioactive waste containing uranium, transuranium elements, radioactive nuclides or compounds of them.
      SOLUTION: A method for treating radioactive waste is used, which has a dissolutive separation process for dissolutively separating uranium, transuranium elements or radioactive nuclides from radioactive waste containing the uranium, the transuranium elements, the radioactive nuclides or compounds of them by an organic acid solution; a precipitate generation process for generating precipitate by detecting an oxidation-reduction potential in an oxidation-reduction reaction to react the uranium, the transuranium elements or the radioactive nuclides obtained in the above dissolutive separation process with an oxidizing agent and concurrently regulating the loading of the oxidizing agent on the basis of the result of the detection; and the separation process for separating the precipitate obtained in the above precipitate generation process.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种处理放射性废物以有效分离和回收含有铀,铀元素,放射性核素或其化合物的放射性废物的铀,铀元素或放射性核素的方法和装置。 解决方案:使用一种处理放射性废物的方法,其具有溶解分离方法,用于将含有铀,铀元素,放射性核素或它们的化合物的铀,铀元素或放射性核素从放射性废物中分离出来 有机酸溶液; 通过检测氧化还原反应中的氧化还原电位,使用上述溶解分离方法获得的铀,铀元素或放射性核素与氧化剂反应并同时调节负载量的沉淀物生成方法 基于检测结果的氧化剂; 以及用于分离在上述沉淀生成工序中得到的析出物的分离工序。 版权所有(C)2008,JPO&INPIT