湖南某铀矿山退役治理环境保护监测与分析  

Investigation and Analysis of Environmental Radioactivity for a Decommissioned Uranium Mine in Hunan Province

作　　者：王长城 高翔[1] 姚勇[1] 尹良伟 WANG Changcheng;GAO Xiang;YAO Yong;YIN Liangwei(Changsha Uranium Geology Research Institute,CNNC,Changsha 410007,China)

机构地区：[1]核工业二三〇研究所,长沙410007

出　　处：《能源研究与管理》2022年第1期99-102,共4页Energy Research and Management

摘　　要：自20世纪50年代以来,核地勘单位主要任务是从事铀矿勘探工作,勘探停止后遗留了大量放射性污染区域,为妥善治理遗留的放射性污染区域,开展对铀矿山、铀矿点进行退役治理。通过对退役治理后的湖南某铀矿山辐射环境进行调查与分析,经测量获得治理后铀矿山及其周边环境地表γ辐射剂量率、氡浓度、土壤及地表水中放射性核素铀、镭含量,其中废石堆γ辐射剂量率值最高,为0.183μGy/h,有水坑口氡析出率最高为0.17 Bq/(m^(2)·s),污染河段底泥中射性核素铀、镭含量最高,分别为38.80 mg/kg和151.10 Bq/kg,均低于退役治理管理限值,认为本退役铀矿山退役治理效果较好。Since the 1950s,the main task of nuclear geological exploration units has been to engage in uranium ore exploration.After the exploration was stopped,a large number of radioactively contaminated areas were left.In order to properly control the remaining radioactively contaminated areas,decommissioning of uranium mines and uranium mines was carried out.Through the investigation and analysis of the radiation environment after decommissioning and treatment,the surfaceγradiation dose rate,radon concentration,soil and surface water radionuclide uranium and radium content of the uranium mine and its surrounding environment after treatment were measured and obtained,among which the waste rock pileγThe radiation dose rate was the highest at 0.183μGy/h,the radon precipitation rate at the mouth of the puddle was the highest at 0.17 Bq/(m^(2)·s),and the radionuclide uranium and radium contents in the sediment of the polluted river reached the highest,at 38.80 mg/kg and 151.10 Bq/kg,which is lower than the decommissioning treatment management limit.It is considered that the decommissioning treatment effect of this decommissioned uranium mine is good.

关 键 词：铀矿山 退役治理 环境监测 剂量限值 

分 类 号：X508[环境科学与工程—环境工程]