不同土～水条件下^(137)Cs的吸附分配特性研究  

Study on Adsorption Distribution of ^(137)Cs under Different Combination of Soil and Water

作　　者：张爱玲[1,2] 韩新生[3] 陈晓秋[2] 廖运璇[2] ZHANG Ai-ling HAN Xin-sheng CHEN Xiao-qiu LIAO Yun-xuan(China Institute of Atomic Energy, Beijing 102413 China Nuclear and Radiation Safety Centre of Ministry of Environment Protection China Institute for Radiation Protection.)

机构地区：[1]中国原子能科学研究院,北京102413 [2]环境保护部核与辐射安全中心 [3]中国辐射防护研究院

出　　处：《中国辐射卫生》2017年第2期137-141,共5页Chinese Journal of Radiological Health

摘　　要：目的 ^(137)Cs是核电厂辐射环境影响评价中的关键核素之一,了解不同土~水条件下^(137)Cs的吸附分配特性。方法通过现场采集的某拟建核电厂周边区域不同类型土壤,采用静态批式法进行^(137)Cs吸附特性的实验研究。结果获得了^(137)Cs在3种土壤和3种水条件下的吸附分配系数,为^(137)Cs的环境迁移模式计算提供了实例参数。结论酸性土壤对^(137)Cs的吸附能力较偏中性土壤的吸附能力弱,不同的水试验条件对^(137)Cs在土壤中的吸附影响较小。Objective 137 Cs is the one of the key nuclides in the environmental impact assessment of nuclear power plants.To understand the characteristics of adsorption and distribution of 137 Cs under different soil-water conditions,provide a basis for the evaluation.Methods the soil from the area of a certain nuclear power plant has been used to carry out experimental study about the adsorption property of 137 Cs by using Batch method.Results As the result of this study,we obtain the adsorp tion distribution coefficient Kd of 137 Cs in three kinds of soil,which provide instance parameter for migration patterns of 137 Cs.Conclusion The adsorption ability of the acidic soil to 137 Cs is weaker than that of the partial neutral soil.The type of water has little impact on adsorption distribution coefficient.

关 键 词：静态批式法 不同土-水条件 

分 类 号：X591[环境科学与工程—环境工程]