MOBILE TYPE SYSTEM FOR DECONTAMINATING INCINERATION ASH CONTAMINATED WITH RADIOACTIVE CESIUM

• Main Authors: JOO JONG SHIK, LIM BYUNG WOO
• Format: Patent
• Language: English; Japanese
• Published: 16.11.2017
• Subjects: CHEMISTRY; DECONTAMINATION ARRANGEMENTS THEREFOR; METALLURGY; NUCLEAR ENGINEERING; NUCLEAR PHYSICS; PHYSICS; PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

PROBLEM TO BE SOLVED: To provide a mobile type system for decontaminating incineration ash contaminated with radioactive cesium, the system being movable without being constrained by a place by providing a decontamination device in a container.SOLUTION: A mobile type radioactive cesium incineration ash decontamination apparatus is provide that comprises: a container 100 forming an installation space; and a decontamination device provided in the installation space of the container and decontaminating radioactive cesium incineration ash. The decontaminating device includes: a solid-liquid mixer 210 for producing contaminated sludge in which cesium is eluted by a mixing step of mixing incineration ash and water; a solid-liquid separator 220 that receives the contaminated sludge from the solid liquid mixer, and separates the contaminated sludge into contaminated water and solid substances; and a cesium collecting section 230 that collects the cesium in the contaminated water separated from a solid-liquid separator. The cesium collecting section includes a collection cartridge made up of a granular cesium absorbent agent. A plurality of containers are provided, and the decontaminating device is provided for each of the containers 100. The decontaminating devices are connected to each other by a flexible hose.SELECTED DRAWING: Figure 2 【課題】コンテナに除染装置を設けることにより、場所の制約なく移動できるようにした、放射性セシウムで汚染された焼却灰を除染する移動型システムを提供する。【解決手段】設置空間を形成するコンテナ１００と、コンテナの設置空間に設けられて放射性セシウム焼却灰を除染させる除染装置とを含んでなる移動型放射性セシウム焼却灰除染装置であって、除染装置は、焼却灰と用水を混合するミキシング工程によりセシウムが溶出した汚染スラッジを生産する固液混合機２１０と、固液混合機からの汚染スラッジを受けて汚染水と固形物とに分離する固液分離機２２０と、固液分離機から分離された汚染水中のセシウムを捕集するセシウム捕集部２３０とを含み、セシウム捕集部は、粒状のセシウム吸着剤からなる捕集カートリッジを含む。コンテナ１００は複数設けられ、除染装置は各コンテナにそれぞれ設けられ、フレキシブルなホースで除染装置を相互に連結する。【選択図】図２