环境胶体与放射性核素相互作用研究进展

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.

Interaction of environmental colloids and radionuclides:a brief review

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.