Decontamination Method for Radioactively Contaminated Material
    3.
    发明申请
    Decontamination Method for Radioactively Contaminated Material 审中-公开
    放射性污染物去污方法

    公开(公告)号:US20150025294A1

    公开(公告)日:2015-01-22

    申请号:US14375268

    申请日:2013-02-13

    IPC分类号: G21F9/00 G21F9/30

    CPC分类号: G21F9/002 G21F9/30

    摘要: This invention relates to a method for decontaminating radioactively contaminated material, for example construction waste. The material is comminuted by means of voltage pulses and can be divided with a high degree of selectivity into non-contaminated or only weakly contaminated material and contaminated remainder. The majority therefore represents non-contaminated or only weakly contaminated waste material which can be disposed of much more easily than the contaminated remainder. Therefore, the method is particularly suitable for reducing the volume of radioactive waste material which is subject to stringent safety requirements in respect of its storage and disposal and therefore its storage and disposal incur high costs.

    摘要翻译: 本发明涉及一种用于净化放射性污染物质的方法,例如建筑废料。 该材料通过电压脉冲粉碎,并且可以以高度的选择性分为无污染或仅有微弱污染的材料和污染的剩余部分。 因此,大多数代表不受污染或仅有微弱污染的废物,其污染物质比受污染的剩余物更容易处理。 因此,该方法特别适用于减少放射性废物的存放和处置的严格安全要求的放射性废物的体积,因此其储存和处理费用高昂。

    Superabsorbing Gel for Actinide, Lanthanide, and Fission Product Decontamination
    5.
    发明申请
    Superabsorbing Gel for Actinide, Lanthanide, and Fission Product Decontamination 有权
    超吸收锕系凝胶,镧系元素和裂变产物去污

    公开(公告)号:US20130231270A1

    公开(公告)日:2013-09-05

    申请号:US13409835

    申请日:2012-03-01

    IPC分类号: C11D17/00

    CPC分类号: C11D1/008 G21F9/002

    摘要: The present invention provides an aqueous gel composition for removing actinide ions, lanthanide ions, fission product ions, or a combination thereof from a porous surface contaminated therewith. The composition comprises a polymer mixture comprising a gel forming cross-linked polymer and a linear polymer. The linear polymer is present at a concentration that is less than the concentration of the cross-linked polymer. The polymer mixture is at least about 95% hydrated with an aqueous solution comprising about 0.1 to about 3 percent by weight (wt %) of a multi-dentate organic acid chelating agent, and about 0.02 to about 0.4 molar (M) carbonate salt, to form a gel. When applied to a porous surface contaminated with actinide ions, lanthanide ions, and/or other fission product ions, the aqueous gel absorbs contaminating ions from the surface.

    摘要翻译: 本发明提供一种用于从被污染的多孔表面除去锕系离子,镧系元素离子,裂变产物离子或其组合的水性凝胶组合物。 组合物包含包含凝胶形成交联聚合物和线性聚合物的聚合物混合物。 线性聚合物的存在浓度小于交联聚合物的浓度。 聚合物混合物与包含约0.1至约3重量%(wt%)多齿有机酸螯合剂和约0.02至约0.4摩尔(M)碳酸盐的水溶液水合至少约95% 形成凝胶。 当应用于被锕系离子,镧系元素离子和/或其他裂变产物离子污染的多孔表面时,水性凝胶从表面吸收污染的离子。

    Method for removing deposits containing magnetite and copper from containers in industrial and power plants
    7.
    发明授权
    Method for removing deposits containing magnetite and copper from containers in industrial and power plants 有权
    从工业和电厂的容器中去除含有磁铁矿和铜的沉积物的方法

    公开(公告)号:US07931753B2

    公开(公告)日:2011-04-26

    申请号:US12555063

    申请日:2009-09-08

    IPC分类号: B08B3/04

    摘要: A method to remove deposits containing magnetite and copper from a container, particularly from a steam generator of a nuclear power plant. In a first step, the container is treated using an alkaline cleaning solution containing a complexing agent forming a soluble complex with iron ions, a reducing agent, and an alkalizing agent. In a second step a further complexing agent forming a more stable complex with iron III ions than the complexing agent used in the first step and an oxidant are added to the cleaning solution of the first step present in the container.

    摘要翻译: 从容器,特别是核电站的蒸汽发生器中去除含有磁铁矿和铜的沉积物的方法。 在第一步骤中,使用含有与铁离子形成可溶性络合物的络合剂的碱性清洗溶液,还原剂和碱化剂来处理容器。 在第二步中,与第一步中使用的络合剂形成与铁III离子更稳定的络合物的另外的络合剂和氧化剂加入到容器中存在的第一步骤的清洁溶液中。

    Method and device for radioactive decontamination of a surface located inside an hollow body
    8.
    发明申请
    Method and device for radioactive decontamination of a surface located inside an hollow body 审中-公开
    位于中空体内的表面放射性去污的方法和装置

    公开(公告)号:US20040131137A1

    公开(公告)日:2004-07-08

    申请号:US10466277

    申请日:2004-02-13

    发明人: Alain Bernard

    IPC分类号: G21C019/42

    CPC分类号: G21F9/004 B05B14/00 G21F9/002

    摘要: A chemical etching solution in the form of jets (14) under pressure is put into contact with the radioactive substance fixed on the surface inside the hollow body (1), and the chemical etching solution that has come into contact with the radioactive substance is recovered and drained to outside the hollow body (1). The radioactive substance is in at least one of the following forms: a phase dissolved in the chemical etching solution; and particles detached from the metal surface by the jets (14) under pressure. The method and the apparatus of the invention serve to decontaminate the inside surface of the hollow body or a component placed inside the hollow body (1) which can be a cleaning vessel.

    摘要翻译: 与喷射器(14)形式的压力下的化学蚀刻溶液与固定在中空体(1)的表面上的放射性物质接触,回收与放射性物质接触的化学蚀刻溶液 并排出到中空体(1)的外部。 放射性物质为以下形式中的至少一种:溶解在化学蚀刻溶液中的相; 并且在压力下由喷嘴(14)从金属表面分离的颗粒。 本发明的方法和装置用于净化中空体的内表面或放置在可作为清洁容器的中空体(1)内的部件。

    Degreasing composition and methods using same
    9.
    发明授权
    Degreasing composition and methods using same 有权
    脱脂成分及使用方法

    公开(公告)号:US06475296B1

    公开(公告)日:2002-11-05

    申请号:US09744568

    申请日:2001-01-25

    IPC分类号: G21F900

    摘要: The present invention relates to a degreasing composition, to a liquid, to a gel and to a degreasing foam which comprise said composition. The composition according to the invention comprises a base, a polyethoxylated fatty alcohol, saturated or unsaturated, a copolymer of ethylene oxide and propylene oxide, and water. The invention also relates to a degreasing and/or decontamination process of a surface using said composition, said liquid, said gel, and/or said degreasing foam.

    摘要翻译: 本发明涉及包含所述组合物的脱脂组合物,液体,凝胶和脱脂泡沫。根据本发明的组合物包含碱,聚乙氧基化脂肪醇,饱和或不饱和的环氧乙烷共聚物 和环氧丙烷,和水。 本发明还涉及使用所述组合物,所述液体,所述凝胶和/或所述脱脂泡沫的表面的脱脂和/或去污处理。

    Electrostatically charged aerosol decontamination system and method
    10.
    发明申请
    Electrostatically charged aerosol decontamination system and method 审中-公开
    静电荷气溶胶净化系统及方法

    公开(公告)号:US20020021985A1

    公开(公告)日:2002-02-21

    申请号:US09885145

    申请日:2001-06-20

    IPC分类号: B32B027/12

    CPC分类号: G21F9/002

    摘要: An electrostatically charged aerosol decontamination system and method includes generating an aerosol fog of a decontamination reagent; electrostatically charging the aerosol particles; and dispensing the electrostatically charged aerosol particles in a contaminated area to neutralize the contaminating agent.

    摘要翻译: 静电电荷的气溶胶净化系统和方法包括产生去污剂的气溶胶雾; 静电充电气溶胶颗粒; 并将静电荷的气溶胶颗粒分配在污染区域中以中和污染物质。