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1.发明公开Method of chemical decontamination for carbon steel member of nuclear power plant 审中-公开一种用于核电站的碳素钢部件的化学污染方法
公开(公告)号：EP2876645A3
公开(公告)日：2015-09-02
申请号：EP14179671.4
申请日：2014-08-04
摘要： A circulation pipe 29 of a chemical decontamination apparatus 28 including a malonic acid injection apparatus 32 and an oxalic acid injection apparatus 37 is connected to a purification system pipe 21, which is made of carbon steel, of a boiling water nuclear power plant. A malonic acid aqueous solution is injected from the malonic acid injection apparatus 32 into the circulation pipe 29. An oxalic acid aqueous solution is injected from the oxalic acid injection apparatus 37 into the circulation pipe 29. A reduction decontaminating solution including a malonic acid of 5200 ppm and an oxalic acid within a range of 50 to 400 ppm is supplied into the purification system pipe 21 through the circulation pipe 29. Reduction decontamination for an inner surface of the purification system pipe 21 is executed. After the reduction decontamination for the purification system pipe 21 finishes, the malonic acid and oxalic acid included in the solution are decomposed and furthermore, the solution is purified.
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公开(公告)号：EP2876645B1
公开(公告)日：2018-10-10
申请号：EP14179671.4
申请日：2014-08-04
摘要： A circulation pipe 29 of a chemical decontamination apparatus 28 including a malonic acid injection apparatus 32 and an oxalic acid injection apparatus 37 is connected to a purification system pipe 21, which is made of carbon steel, of a boiling water nuclear power plant. A malonic acid aqueous solution is injected from the malonic acid injection apparatus 32 into the circulation pipe 29. An oxalic acid aqueous solution is injected from the oxalic acid injection apparatus 37 into the circulation pipe 29. A reduction decontaminating solution including a malonic acid of 5200 ppm and an oxalic acid within a range of 50 to 400 ppm is supplied into the purification system pipe 21 through the circulation pipe 29. Reduction decontamination for an inner surface of the purification system pipe 21 is executed. After the reduction decontamination for the purification system pipe 21 finishes, the malonic acid and oxalic acid included in the solution are decomposed and furthermore, the solution is purified.
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公开(公告)号：EP2819125B1
公开(公告)日：2018-08-08
申请号：EP14173006.9
申请日：2014-06-18
发明人： Sumiya, Takako , Noshita, Kenji , Ishida, Kazushige , Nagayama, Nozomu , Kamoshida, Mamoru , Yukita, Atsushi
摘要： Disclosed is a method for treating a radioactive organic waste, the radioactive organic waste including a cation exchange resin adsorbing radionuclide ions, the method including the step of bringing the radioactive organic waste into contact with an organic acid salt aqueous solution containing an organic acid salt and whereby desorbing the radionuclide ions from the cation exchange resin, in which the organic acid salt contained in the organic acid salt aqueous solution includes a cation that is more readily adsorbable by the cation exchange resin than hydrogen ion is. This enables reduction in concentration of a radioactive substance in the radioactive organic waste and reduction in amount of a high-dose radioactive waste.
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4.发明公开Method of chemical decontamination for carbon steel member of nuclear power plant 审中-公开一种用于核电站的碳素钢部件的化学污染方法
公开(公告)号：EP2876645A2
公开(公告)日：2015-05-27
申请号：EP14179671.4
申请日：2014-08-04
摘要： A circulation pipe 29 of a chemical decontamination apparatus 28 including a malonic acid injection apparatus 32 and an oxalic acid injection apparatus 37 is connected to a purification system pipe 21, which is made of carbon steel, of a boiling water nuclear power plant. A malonic acid aqueous solution is injected from the malonic acid injection apparatus 32 into the circulation pipe 29. An oxalic acid aqueous solution is injected from the oxalic acid injection apparatus 37 into the circulation pipe 29. A reduction decontaminating solution including a malonic acid of 5200 ppm and an oxalic acid within a range of 50 to 400 ppm is supplied into the purification system pipe 21 through the circulation pipe 29. Reduction decontamination for an inner surface of the purification system pipe 21 is executed. After the reduction decontamination for the purification system pipe 21 finishes, the malonic acid and oxalic acid included in the solution are decomposed and furthermore, the solution is purified.
摘要翻译： 一个化学除污装置28包括丙二酸喷射装置32，并计划草酸注射装置37的循环管29连接到一个纯化系统配管21，所有这些由沸水核电厂的碳钢的。 丙二酸wässrige溶液从丙二酸注射装置32注射到循环管29向草酸wässrige溶液从草酸注射装置37注射到循环管29，一种减少去污溶液包含5200丙二酸 PPM和范围为50至400ppm范围内的草酸29通过循环管还原净化在净化系统管21执行的内表面供给到净化系统管线21。 还原净化为净化系统管21完成后，将丙二酸和草酸包括在溶液被分解，进一步，将溶液进行纯化。
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5.发明公开Radioactive organic waste treatment method and system 审中-公开Behandlungsverfahren und-systemfürradioaktive organischeAbfälle
公开(公告)号：EP2819125A1
公开(公告)日：2014-12-31
申请号：EP14173006.9
申请日：2014-06-18
发明人： Sumiya, Takako , Noshita, Kenji , Ishida, Kazushige , Nagayama, Nozomu , Kamoshida, Mamoru , Yukita, Atsushi
摘要： Disclosed is a method for treating a radioactive organic waste, the radioactive organic waste including a cation exchange resin adsorbing radionuclide ions, the method including the step of bringing the radioactive organic waste into contact with an organic acid salt aqueous solution containing an organic acid salt and whereby desorbing the radionuclide ions from the cation exchange resin, in which the organic acid salt contained in the organic acid salt aqueous solution includes a cation that is more readily adsorbable by the cation exchange resin than hydrogen ion is. This enables reduction in concentration of a radioactive substance in the radioactive organic waste and reduction in amount of a high-dose radioactive waste.
摘要翻译： 本发明公开了一种放射性有机废弃物的处理方法，所述放射性有机废弃物包括吸附放射性核素离子的阳离子交换树脂，所述方法包括使放射性有机废物与含有机酸盐的有机酸盐水溶液接触的步骤， 从而从阳离子交换树脂中除去有机酸盐水溶液中含有的有机酸盐的阳离子与离子交换树脂相比更容易被阳离子交换树脂吸附的阳离子。 这样可以减少放射性有机废物中放射性物质的浓度，减少高剂量放射性废物的量。
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