环境胶体与放射性核素相互作用研究进展  

Interaction of environmental colloids and radionuclides:a brief review

作　　者：潘多强[1,2] 徐真 魏小彦 孙亚楼 陈宗元[1,2] 靳强[1,2] 牛智伟[1,2] 郭治军[1,2] 吴王锁[1,2] Duoqiang Pan;Zhen Xu;Xiaoyan Wei;Yalou Sun;Zongyuan Chen;Qiang Jin;Zhiwei Niu;Zhijun Guo;Wangsuo Wu(School of Nuclear Science and Technology,Lanzhou University,Lanzhou 730000;Key Laboratory of Special Function Materials and Structure Design,Ministry of Education,Lanzhou University,Lanzhou 730000,China)

机构地区：[1]兰州大学核科学与技术学院,兰州730000 [2]兰州大学特殊功能材料与结构设计教育部重点实验室,兰州730000

出　　处：《中国科学：化学》2019年第1期12-26,共15页SCIENTIA SINICA Chimica

基　　金：国家自然科学基金(编号:U1730245)资助项目

摘　　要：环境胶体在自然界广泛存在,由于具有很强的反应性和迁移性,环境胶体可作为放射性核素在环境中传输的载体,在放射性核素迁移过程中扮演重要的角色.环境胶体与放射性核素的相互作用对核环境安全和核应急意义重大.近年来,相关问题受到越来越多的关注,成为环境放射化学领域研究的热点.本文针对放射性废物处置环境中的典型胶体,综述了环境胶体与放射性核素相互作用的研究进展,探讨了环境胶体的来源、稳定性和迁移性,介绍了开展胶体相关研究的常见方法,分析了环境胶体对放射性核素环境迁移行为的影响,以期为全面、深入地认识环境胶体和放射性核素的地球化学行为提供参考.Environmental colloids exist widely in nature media,due to the strong reactivity and mobility.They can act as a carrier for radionuclides and play an important role in the transport of radionuclides in environment.The interaction between environmental colloids and radionuclides is of great significance to nuclear environment safety as well as nuclear emergency.In recent years,the colloids related issues have attracted much attention in the field of environmental radiochemistry.This review targeted on the typical environmental colloids in disposal environment of radioactive waste.Besides,the progress on interaction between environmental colloids and radionuclides was reviewed,the source,stability and transport of environmental colloids were discussed,common approaches for conducting colloidal related research were summarized,and the influence of environmental colloids on radionuclides migration was analyzed.The points in this review are expected to be referable for a comprehensive and in-depth understanding on the geochemical behavior of environmental colloids and radionuclides.

关 键 词：环境胶体 放射性核素 稳定性 吸附 迁移 

分 类 号：O648.1[理学—物理化学]