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    • 7. 发明专利
    • Solidification method of boric acid-containing radioactive waste liquid
    • 含硼酸的放射性废物液体的固体化方法
    • JP2014106144A
    • 2014-06-09
    • JP2012259794
    • 2012-11-28
    • Toshiba Corp株式会社東芝
    • SATO TATSUAKISHOJI YUICHIKANEKO MASAAKIHARUGUCHI YOSHIKOYASUMURA KEIJIROKOMATSUBARA MASARUHONDA YUSUKEMOTOHASHI TETSUO
    • G21F9/16
    • PROBLEM TO BE SOLVED: To provide a solidification method of a boric acid-containing radioactive waste liquid, by which the boric acid-containing radioactive waste liquid is transformed to a stable cement solidified body while the volume is highly reduced and which achieves excellent operational stability.SOLUTION: A solidification method of a boric acid-containing radioactive waste liquid includes: a first step of adjusting a molar ratio of an alkali metal to a boric acid to 0.2-0.3 by adding an alkali metal compound to the waste liquid; a second step of transforming the waste liquid to dry powder by drying it; a third step of transforming the dry powder to slurry by primarily kneading it with kneading water; a fourth step of adjusting the molar ratio of the alkali metal to the boric acid to 0.5-0.7 by adding the alkali metal compound to the slurry; and a fifth step of performing secondary kneading after adding a hydraulic inorganic solidification material to the slurry, so as to solidify it.
    • 要解决的问题:提供含硼酸的放射性废液的固化方法,通过该固化方法将含硼酸的放射性废液转化为稳定的水泥固化体,同时体积高度降低并且实现优异的操作稳定性 解决方案:含硼酸的放射性废液的固化方法包括:通过向废液中加入碱金属化合物,将碱金属与硼酸的摩尔比调节至0.2〜0.3的第一步骤; 通过干燥将废液转化成干粉的第二步骤; 通过主要将揉搓水将干粉转化成浆料的第三步骤; 通过向该浆料中添加碱金属化合物,将碱金属与硼酸的摩尔比调整为0.5〜0.7的第四工序; 以及在向所述浆料中加入水硬性无机凝固材料之后进行二次捏合以使其固化的第五步骤。
    • 8. 发明专利
    • Method and apparatus for treating waste fluid containing boric acid
    • 用于处理含有硼酸的废液的方法和装置
    • JP2013213743A
    • 2013-10-17
    • JP2012084275
    • 2012-04-02
    • Toshiba Corp株式会社東芝
    • HARUGUCHI YOSHIKOSATO TATSUAKISHOJI YUICHI
    • G21F9/16G21F9/08
    • PROBLEM TO BE SOLVED: To provide a method and an apparatus in which, in a state of suppressing carry-over of boric acid in waste fluid containing boric acid into a vapor phase, viscosity and fluidity of concentrated liquid waste obtained in reduction of the waste fluid containing the boric acid can be easily controlled, and the concentrate liquid waste can be used for cement solidification.SOLUTION: An apparatus 10 for treating waste fluid containing boric acid includes: a reaction tank 13 in which the waste fluid containing boric acid and organic calcium salt are put to react with each other to generate boric acid calcium salt; waste liquid containing boric acid calcium salt concentration means 15 in which the waste fluid containing boric acid calcium salt is condensed and reduced and the condensed waste fluid containing sludge of the boric acid calcium salt is generated; and cement solidification means of solidifying the condensed waste fluid with cement.
    • 要解决的问题:提供一种方法和设备,其中在将含有硼酸的废液中的硼酸转移成气相的状态下,在减少废物中获得的浓缩废液的粘度和流动性 可以容易地控制含有硼酸的流体,并且浓缩废液可以用于水泥固化。解决方案:用于处理含有硼酸的废液的设备10包括:反应罐13,其中含有硼酸和有机物的废液 使钙盐相互反应生成硼酸钙盐; 含有硼酸钙盐浓度的废液15意味着含有硼酸钙盐的废液冷凝和还原,产生含有硼酸钙盐的污泥的冷凝废液; 和用水泥固化冷凝废液的水泥固化装置。