公开(公告)号：US20020150523A1

公开(公告)日：2002-10-17

申请号：US10000083

申请日：2001-12-04

Applicant: Hitachi, Ltd.

Inventor： Makoto Nagase ,  Naohito Uetake ,  Kazushige Ishida ,  Fumito Nakamura ,  Kazumi Anazawa ,  Tadashi Tamagawa ,  Hiroo Yoshikawa

IPC: B01J008/00 ,  B01J008/04

CPC classification number: G21F9/004

Abstract: nullProcesses of reductive decontamination using an agent containing at least two kinds of components, and then decomposing the agent using an apparatus for decomposing at least two kinds of chemical substances in the agent, are employed in chemical decontamination. Anull In a chemical decontamination apparatus, a catalyst decomposition column in an upstream side of an ion exchange resin column and a hydrogen peroxide injection apparatus in a further upstream side, reduce the amount of waste products caused by a chemical decontaminating agent where a mixed decontaminating agent for a composition trapped in a cation resin column and for a composition trapped in an anion exchange resin are used for the chemical decontaminating agent, selectively decompose the composition trapped in the cation resin column in an inlet side of a cleaning apparatus when radioactive nuclides in the decontaminating agent are cleansed using the cation resin column during decontamination, and decompose both compositions after completion of the decontamination. The chemical decontamination thus selectively decomposes the chemical decontaminating agent, which is a component of the load to the cation resin column. nullThe chemical decontamination moderates corrosion of material by using a chemical decontaminating agent decomposing apparatus capable of decomposing the components trapped by the cation exchange resin and components trapped by an anion exchange resin at the same time.null

Abstract translation: [使用含有至少两种成分的试剂的还原性去污的方法，然后使用用于在试剂中分解至少两种化学物质的装置分解试剂进行化学去污。 A]在化学去污设备中，离子交换树脂柱的上游侧的催化剂分解塔和上游侧的过氧化氢注入装置减少由化学净化剂引起的废物的量，其中混合净化 将用于阳离子树脂柱中的组合物和捕获在阴离子交换树脂中的组合物的试剂用于化学净化剂，当将放射性核素置于清洁装置的入口侧时，选择性地分解在清洁装置的入口侧中捕获在阳离子树脂柱中的组合物 净化剂在去污期间使用阳离子树脂柱进行清洁，并且在去污完成后分解两种组合物。 化学去污因此选择性地将作为负荷成分的化学净化剂分解到阳离子树脂柱中。 [化学去污通过使用能够分解被阳离子交换树脂捕获的成分和同时被阴离子交换树脂捕获的成分的化学除污剂分解装置来缓和材料的腐蚀。