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    • 3. 发明专利
    • Solidification processing method for radioactive waste of high radioactive concentration and its system
    • 高放射性浓度放射性废物的固体加工方法及其系统
    • JP2006118957A
    • 2006-05-11
    • JP2004306467
    • 2004-10-21
    • Toshiba CorpToshiba Plant Systems & Services Corp東芝プラントシステム株式会社株式会社東芝
    • MIYAMOTO MASAYAMIKURA MICHITAKAMORIKAWA JUNICHISATO TATSUAKITAKAHASHI RIYOUTASAKURAI JIRONISHIKUBO MASARU
    • G21F9/36G21F9/02
    • PROBLEM TO BE SOLVED: To suppress or prevent gas generation from a solid body due to radiolysis during laying the solid body underground by mixing the radioactive waste of high radioactive concentration and hydraulic inorganic solidification material for forming a solid body and removing water by heating.
      SOLUTION: The solidification processing method for radioactive waste of high radioactive concentration has a solid body forming step for forming solid body by supplying a containing vessel 13 with the radioactive waste 11 of high radioactive concentration and hydraulic inorganic solidification material 10 and mixing, a heating processing step 14 for removing water by heating 14 the containing vessel 13 which has the solid body, a containing vessel sealing step 20 for putting a lid on the containing vessel 13 in which the water is sufficiently removed by heating 14 and sealing 18, and an embedment disposal step 19 for laying the sealed containing vessel 13 underground for disposal.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:通过混合高放射性浓度的放射性废物和用于形成固体的水硬性无机固化材料并将水除去,来抑制或阻止由于通过将地下固体放置在固体中而导致的固体的气体产生 加热。 解决方案:放射性浓度高的放射性废物的固化处理方法具有通过向含有容器13供给高放射性浓度的放射性废物11和水硬性无机固化材料10并混合而形成固体的固体成型步骤, 用于通过加热14除去水的加热处理步骤14具有固体的容纳容器13,用于通过加热14密封18将盖子充分除去的容纳容器13上的盖子盖住的容器密封步骤20, 以及用于将密封容纳容器13放置在地下以进行处理的嵌入处置步骤19。 版权所有(C)2006,JPO&NCIPI
    • 4. 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。
    • 5. 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。
    • 8. 发明专利
    • Method for solidifying waste liquid of boric acid
    • 用于固化硼酸的废液的方法
    • JP2010151487A
    • 2010-07-08
    • JP2008327420
    • 2008-12-24
    • Toshiba Aitekku KkToshiba Corp東芝アイテック株式会社株式会社東芝
    • SATO TATSUAKISHOJI YUICHIYAMASHITA TAKEOKANEKO MASAAKIMIKURA MICHITAKAAISAKA TAKASHINISHIKUBO MASARUYASUMURA KEIJIRO
    • G21F9/16
    • PROBLEM TO BE SOLVED: To provide a method for solidifying a waste liquid of boric acid which is excellent in energy efficiency and shortens the treatment time while preventing the instant condensation in the solidification of the waste liquid of boric acid, facilitating the handling of the solidified waste liquid of boric acid and decreasing the quantity of waste by curbing the usage of extra additives and the like. SOLUTION: After a borate solution is prepared by adding a monovalent alkali metal hydroxide to the waste liquid of boric acid to neutralize it, heating treatment is given to it to prepare a condensed borate solution where the concentration of the borate in the borate solution is 62 wt.% or higher in terms of boric acid. Moreover, cement of 0.17 to 0.33% in the total weight is added to and mixed with the condensed borate solution to solidify it. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种固化硼酸废液的方法,其能量效率优异并缩短处理时间,同时防止硼酸废液凝固中的即时冷凝,便于处理 的固化的硼酸废液,通过抑制额外的添加剂等的使用来减少废物的量。 解决方案:通过向硼酸废液中加入一价碱金属氢氧化物来中和硼酸盐溶液后,加热处理以制备硼酸盐浓度在硼酸盐中的浓缩硼酸盐溶液 溶液的硼酸为62重量%以上。 此外,将总重量为0.17至0.33%的水泥加入并与冷凝的硼酸盐溶液混合以使其固化。 (C)2010,JPO&INPIT
    • 10. 发明专利
    • Method and device for solidifying radioactive waste
    • 用于固化放射性废物的方法和装置
    • JP2008286525A
    • 2008-11-27
    • JP2007128895
    • 2007-05-15
    • Toshiba Corp株式会社東芝
    • YAMASHITA TAKEOKANEKO MASAAKIHARUGUCHI YOSHIKOMIKURA MICHITAKASATO TATSUAKIKOMATSUBARA MASARU
    • G21F9/30G21F9/16
    • PROBLEM TO BE SOLVED: To provide a method for solidifying radioactive waste and a device therefor which can inhibit inclination of a gas in a container to become flammable due to rise of the pressure in the container or generated hydrogen.
      SOLUTION: The method for solidifying radioactive waste comprises a mixture accommodating step wherein a mixture of radioactive waste containing radionuclide(s) and solidifying material is accommodated in a solidifying container, and a water stability improver adding step wherein a water stability improver is added to the mixture before the mixture is accommodated in the solidifying container, or wherein the water stability improver is added to the solidifying container before or after the mixture is accommodated in the solidifying container. The water stability improver maintains an electric potential at which water can be stable under alkaline conditions in a solidified body obtained by solidifying the mixture.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种固化放射性废物的方法及其装置,其可以抑制容器中的气体由于容器或产生的氢气中的压力升高而变得易燃的倾向。 解决方案:固化放射性废物的方法包括混合物容纳步骤,其中将含有放射性核素的放射性废物和固化材料的混合物容纳在固化容器中,以及水稳定性改进剂添加步骤,其中水稳定性改进剂为 在将混合物容纳在固化容器中之前加入到混合物中,或者在将混合物容纳在凝固容器中之前或之后将水稳定性改进剂加入固化容器中。 水稳定性改进剂在通过固化混合物获得的凝固体中保持水在碱性条件下稳定的电位。 版权所有(C)2009,JPO&INPIT