摘要
就铀矿冶设施退役环境治理过程中涉及铀尾矿库中的大面积铀尾矿氡析出率的测量、计算及用覆盖方法控制氡析出率的有关问题进行了探讨。提出了大面积铀尾矿年平均氡析出率测量中应考虑选择合适的测量时间、布点网度、测量次数等 ,以消除由于气象因素、尾矿中镭质量分数的不均匀等对氡析出率测量带来的影响。指出比较经济、实用的控制氡析出率的方法是用土壤、砂砾石等天然材料进行覆盖 。
This paper studies the measurement,calculation of radon eduction rate and the control to radon eduction rate by covering some material in big area of tailings for remediation and decommissioning of uranium tailings impoundment.In order to eliminate the effect on the measurement of radon eduction rate by the weather and the inhomogeneous radium content of tailings,the suitable measuring time,network and times should be considered in the measurement of the average annual radon eduction rate of uranium tailings.It is proposed that the better economic and social benefits will be obtained with natural meterial (soil, gravel etc) as cover material to reduce radon eduction rate.The author describes how to determine the cover thickness by comparing the results in site test with that in calculation.
出处
《铀矿冶》
CAS
2001年第2期93-102,共10页
Uranium Mining and Metallurgy
关键词
铀尾矿库
退役治理
氡析出率
环境治理
覆盖厚度
uranium tailings impoundment
remediation and decommission
radon eduction
