摘要
在某溶洞放射性废物库进行退役治理时,针对溶洞内仅设置自然通风以及溶洞内氡活度浓度超过国家标准等问题,结合该溶洞废物库实际情况进行了通风试验;并根据现场监测的氡析出率数据,设计通风降氡技术方案。采用优化后的通风降氡技术方案,可将溶洞废物库内的氡活度浓度降至2.70 kBq/m^(3)以下。研究结果可为废物库退役治理过程提供通风安全保障。
In the design of decommissioning treatment for the existing radioactive waste repository in a karst cave in China,it is found that only natural ventilation is set in the cave,and the radon activity concentration in the cave is higher than the national standard,which causes certain difficulties for the next decommissioning treatment work.In view of the above problems,combined with the actual situation of the cave waste repository,the ventilation test was carried out,and the radon exhalation rate data was monitored on site,and the technical scheme for reducing radon by ventilation was studied.After the rectification,the radon concentration was reduced to 2.70 kBq/m^(3),which provided ventilation safety guarantee for the decommissioning treatment process of waste repository.
作者
柳景景
李阳
张德全
曹京
邵磊昌
LIU Jingjing;LI Yang;ZHANG Dequan;CAO Jing;SHAO Leichang(CNNC Environmental Protection Design and Research Engineering Co.,Ltd.,Beijing 101149,China;Beijing Research Institute of Chemical Engineering and Metallurgy,CNNC,Beijing 101149,China)
出处
《铀矿冶》
CAS
2021年第2期170-173,共4页
Uranium Mining and Metallurgy
关键词
溶洞废物库
放射性
退役治理
氡浓度
通风
karst cave waste repository
radioactive
decommissioning treatment
radon concentration
ventilation
