Decontamination of radioactive liquid effluent by solid-liquid extraction using a recycle loop
    1.
    发明授权
    Decontamination of radioactive liquid effluent by solid-liquid extraction using a recycle loop 有权
    使用循环回路利用固液萃取对放射性液体废液进行去污

    公开(公告)号:US08696911B2

    公开(公告)日:2014-04-15

    申请号:US12918032

    申请日:2009-02-17

    IPC分类号: B01D15/00

    摘要: The invention relates to a continuous process for decontaminating a radioactive liquid effluent comprising one or more radioactive chemical elements to be removed that comprises the following steps: a step of bringing said radioactive liquid effluent into contact, in a first reactor, with solid particles capable of capturing and retaining said radioactive chemical element(s) to be removed, by means of which a suspension of solid particles containing said radioactive chemical element(s) to be removed is obtained; a step of settling said suspension, in a second reactor, by means of which a solid phase is obtained that comprises the solid particles containing said radioactive chemical element(s) to be removed and a liquid phase depleted or devoid of said radioactive chemical element(s) to be removed; a step of separating said solid phase and said liquid phase; characterized in that a portion of said solid phase obtained at the end of the settling step is reinjected into the first reactor for the implementation of a contacting step as defined above. Application to the treatment of radioactive liquid effluents originating from nuclear installations.

    摘要翻译: 本发明涉及用于净化放射性液体流出物的连续方法,其包括一种或多种待除去的放射性化学元素,其包括以下步骤:使第一反应器中的所述放射性液体流出物与固体颗粒接触的步骤 捕获并保留要除去的所述放射性化学元素,借助于此而获得包含要去除的所述放射性化学元素的固体颗粒的悬浮液; 在第二反应器中沉降所述悬浮液的步骤,通过该步骤获得固相,其包含含有待除去的所述放射性化学元素的固体颗粒和耗尽或缺乏所述放射性化学元素的液相( s)被删除; 分离所述固相和所述液相的步骤; 其特征在于,在沉降步骤结束时获得的所述固相的一部分被再注入到第一反应器中以实施如上所述的接触步骤。 应用于处理来自核设施的放射性液体废水。

    METHOD FOR DECONTAMINATION OF A LIQUID EFFLUENT INCLUDING ONE OR MORE RADIOACTIVE CHEMICAL ELEMENTS BY TREATMENT IN A FLUIDIZED BED
    2.
    发明申请
    METHOD FOR DECONTAMINATION OF A LIQUID EFFLUENT INCLUDING ONE OR MORE RADIOACTIVE CHEMICAL ELEMENTS BY TREATMENT IN A FLUIDIZED BED 有权
    通过在流化床中处理去除液体液体的方法,包括一种或多种放射性化学元素

    公开(公告)号:US20110290732A1

    公开(公告)日:2011-12-01

    申请号:US13125965

    申请日:2009-10-26

    IPC分类号: B01D15/04 B01D21/01

    摘要: The invention relates to a method for decontamination of a liquid effluent including one or more radioactive chemical elements to be eliminated including the following steps: a step of bringing into contact in a stirred fluidised bed, in a first zone of a reactor, of the said liquid effluent with solid particles able, by coprecipitation and/or adsorption and/or ion exchange, to capture and retain the said radioactive chemical element or elements, as a result of which a suspension of solid particles is obtained containing the said radioactive chemical element or elements; a step of settling, of the said suspension, in a second zone of the same reactor, where this second zone is separate from the first abovementioned zone, as a result of which a solid phase is obtained including the solid particles containing the said radioactive chemical element or elements to be eliminated, and a liquid phase with a reduced or zero content of the said radioactive chemical element or elements to be eliminated; and a step of separation of the said solid phase and of the said liquid phase.

    摘要翻译: 本发明涉及一种用于对包括一种或多种要消除的放射性化学元素的液体流出物进行净化的方法,包括以下步骤:在反应器的第一区中的搅拌流化床中接触所述 具有能够通过共沉淀和/或吸附和/或离子交换的固体颗粒的液体流出物捕获和保留所述放射性化学元素,由此获得含有所述放射性化学元素的固体颗粒的悬浮液或 元素 将所述悬浮液沉淀在相同反应器的第二区域中的步骤,其中该第二区域与第一上述区域分离,结果得到包含含有所述放射性化学物质的固体颗粒的固相 要消除的元素或元素,以及所述放射性化学元素或要消除的元素的含量减少或零的液相; 以及所述固相和所述液相的分离步骤。

    METHOD FOR THE DECONTAMINATION OF A RADIOACTIVE LIQUID EFFLUENT WITH ONE OR MORE RADIOACTIVE CHEMICAL ELEMENTS BY SOLID-LIQUID EXTRACTION USING A RECYCLING LOOP
    4.
    发明申请
    METHOD FOR THE DECONTAMINATION OF A RADIOACTIVE LIQUID EFFLUENT WITH ONE OR MORE RADIOACTIVE CHEMICAL ELEMENTS BY SOLID-LIQUID EXTRACTION USING A RECYCLING LOOP 有权
    通过使用回收循环的固体液体萃取来消除具有一个或多个放射性化学元素的放射性液体溶液的方法

    公开(公告)号:US20110036777A1

    公开(公告)日:2011-02-17

    申请号:US12918032

    申请日:2009-02-17

    IPC分类号: G21F9/12

    摘要: The invention relates to a continuous process for decontaminating a radioactive liquid effluent comprising one or more radioactive chemical elements to be removed that comprises the following steps:a step of bringing said radioactive liquid effluent into contact, in a first reactor, with solid particles capable of capturing and retaining said radioactive chemical element(s) to be removed, by means of which a suspension of solid particles containing said radioactive chemical element(s) to be removed is obtained;a step of settling said suspension, in a second reactor, by means of which a solid phase is obtained that comprises the solid particles containing said radioactive chemical element(s) to be removed and a liquid phase depleted or devoid of said radioactive chemical element(s) to be removed;a step of separating said solid phase and said liquid phase;characterized in that a portion of said solid phase obtained at the end of the settling step is reinjected into the first reactor for the implementation of a contacting step as defined above.Application to the treatment of radioactive liquid effluents originating from nuclear installations.

    摘要翻译: 本发明涉及用于净化放射性液体流出物的连续方法,其包括一种或多种待除去的放射性化学元素,其包括以下步骤:使第一反应器中的所述放射性液体流出物与固体颗粒接触的步骤 捕获并保留要除去的所述放射性化学元素,借助于此而获得包含要去除的所述放射性化学元素的固体颗粒的悬浮液; 在第二反应器中沉淀所述悬浮液的步骤,通过该步骤获得固相,其包含含有待除去的所述放射性化学元素的固体颗粒和耗尽或缺乏所述放射性化学元素的液相( s)被删除; 分离所述固相和所述液相的步骤; 其特征在于,在沉降步骤结束时获得的所述固相的一部分被再注入到第一反应器中以实施如上所述的接触步骤。 应用于处理来自核设施的放射性液体废水。