摘要
核武器试验、核事故和核设施退役是环境中放射性铯污染的主要来源,铯在土壤介质中通过复杂的环境化学过程,威胁人体健康和生态环境安全。本文在详细总结土壤中黏土矿物特性的基础上,就现有放射性铯在黏土矿物中的吸附/解吸行为研究所涉及的吸附位点、位点含量、作用机制、吸附模型、表征技术手段等内容进行了综述,并对不同吸附模型和不同表征方法进行了对比分析。结合当前吸附/解吸行为的研究现状,对今后放射性铯与土壤吸附/解吸行为研究方向提出了建议。
Radioactive cesium pollution comes from the nuclear weapon tests,nuclear accidents and decommissioning of nuclear facilities.Cesium usually expresses complex environmental chemical process in soil,which threats human health and ecological environment security.Based on a detailed summary of the characteristics of clay minerals in soil,adsorption sites,site contents,mechanism of cesium and clay minerals,adsorption models and characterization techniques involved in the study of adsorption/desorption behavior of radioactive cesium in clay minerals were reviewed.Meanwhile,different adsorption models and characterization methods were compared and analyzed.Combined with the current research status of adsorption/desorption behavior,some suggestions were put forward for the future research about adsorption/desorption behavior of radioactive cesium in soils.
作者
张坤
王善强
李战国
齐圣
赵红杰
韩梦薇
ZHANG Kun;WANG Shanqiang;LI Zhanguo;QI Sheng;ZHAO Hongjie;HAN Mengwei(State Key Laboratory of NBC Protection for Civilian,Beijing 102205,China;Research Institute for National Defense Engineering of Academy,Luoyang 471023,China)
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
2021年第3期405-416,共12页
Atomic Energy Science and Technology
基金
国家重点研发计划资助项目(2018YFC1801105)
国民核生化灾害防护国家重点实验室基金资助项目(SKLNBC2019-01)。
关键词
放射性污染土壤
放射性铯
黏土矿物
吸附
解吸
环境行为
radioactive contaminated soil
radioactive cesium
clay mineral
adsorption
desorption
environmental behavior
