核电厂流出物排放量统计方法研究  

Study on statistical method of effluent emissions from nuclear power plant

作　　者：党煜钦 王文海 郑国峰 朱琨 DANG Yuqin;WANG Wenhai;ZHENG Guofeng;ZHU Kun(Nuclear and Radiation Safety Center,Ministry of Ecology and Environment,Beijing 102400;China Nuclear Power Operation Management Co.Ltd.,Zhejiang Haiyan 314300)

机构地区：[1]生态环境部核与辐射安全中心,北京102400 [2]中核核电运行管理有限公司,浙江海盐314300

出　　处：《辐射防护》2023年第4期300-310,共11页Radiation Protection

摘　　要：运行核电厂放射性流出物排放量统计是一项重要工作,然而在实践中发现,核电厂排放的流出物中很多核素的活度浓度并不高,在流出物排放量统计中经常会面临分析结果低于探测限的情况,深入研究如何处理监测数据才能使排放量统计结果更接近实际排放量是一个挑战。本文收集了近年来秦山核电基地流出物监测数据,对其数值分布特点进行分析研究,提出了基于核素检出率的流出物排放量统计方法和策略,给出了流出物探测限取值系数的推荐值。通过与传统方法的统计结果进行比较,并对差异性进行分析,认为基于核素检出率的统计方法和策略现实可行,统计结果更接近于实际排放情况,有进一步深入研究的价值。The statistics of radioactive effluent emissions from operating nuclear power plants is an important work.However,it is found in practice that the activity concentrations of many radionuclides in the effluents from nuclear power plants are not high,and the analysis results are often lower than the detection limit in the effluent emissions statistics.In this context,it is a challenge to make deep research on how the monitoring data can be processed to bring emissions statistics closer to actual emissions.In this paper,the monitoring data of effluents from Qinshan nuclear power base in recent years are collected;their numerical distribution characteristics are analyzed and studied;the statistical method and strategy of effluent emissions based on radionuclide detection rate are put forward;and the recommended value of the value coefficient of the detection limit of effluent is given.By comparing with the statistical results of traditional methods and by analyzing the differences,it is considered that the statistical method and strategy based on radionuclide detection rate is realistic and feasible,and the statistical results are closer to the actual emission situation,which is worthy of further research.

关 键 词：核电厂 探测限 排放活度浓度 排放量 

分 类 号：TL75[核科学技术—辐射防护及环境保护]