坑式废物库高水平放射性固体废物回取整备

Retrieval and Conditioning of High Level Radioactive Solid Waste From Pit-Type Storage Facilities

某核技术利用废库(城市废物库)超期服役,设备老化,20世纪70年代因管理不规范而收贮的高放固体废物给周围环境带来极大的安全隐患,需尽快妥善回取、处置。中国原子能科学研究院放射性三废设施治理工程部根据现场实际工况,设计制订了利用"机器人-气帐"系统回取高放废物的工艺路线。通过现场污染水平和库坑"热点"检测分析,查找到了17号库坑内高放固体废物的具体位置。通过回取实施前的模拟验证试验工作,优化了回取的技术路线。采用远距离回取技术,成功地实施了高放固体废物的回取和包装整备工作。

A city radioactive waste temporary storage facility was operated for many years and aged seriously.In the 1970s,some high level radioactive solid waste（HLW） was stored in this facility because of bad management,which threatens the environment safety and should be retrieved and conditioned as soon as possible.According to the real condition in site,a retrieval technical process for HLW utilizing ＂robot-airproof work cell＂ was employed by the Department of Radioactive Waste Management,CIAE.The HLW was located in the No.17 pit through contaminated level and detected hot-spot.After the mock-up test,the retrieval technical process was optimized.Finally,the HLW was successfully retrieved and conditioned in remote control way.