摘要
介绍了铀尾矿库的物理、化学概念模型和其中重金属、放射性核素迁移的一般过程 ;论述了沉淀作用、络合作用和胶体作用对放射性核素迁移的影响 ;重点讨论了描述吸附作用的离子交换模型和表面络合模型的建模机理 ;对定量模拟放射性核素迁移行为的 Kd模型、表面络合模型及“反应 -运移模型”的应用进行了评述。
Physical and chemical conceptual models of uranium mill taillings and the associated migration processes of heavy metals and radionuclides are reviewed The influences of precipitation,complexation and colloidal processes in the migration are discussed Ion exchange models and surface complexation models used to describe the adsorption are discussed in detail The application of K d models,surface complexation models and reaction-transport models in quantitative modeling of radionuclides migration is reviewed as well
出处
《地质科技情报》
CAS
CSCD
北大核心
2000年第2期78-82,共5页
Geological Science and Technology Information
基金
国家自然科学基金重点项目! (49832 0 0 5 )
关键词
放射性核素
迁移
地下介质
模拟
radionuclide
migration
subsurface media
modeling
