核废料及有毒化学废料的地质处理问题

为了防止核废料及有毒化学废料进入生物圈污染人类所赖以生存的环境,自从70年代末以来,对核废料和有毒化学废料的地质处理发生了很大的兴趣。文中讨论了几种有关的溶质运移模型。并指出这些模型应用于实际野外问题时的主要困难在于各种参数的现场测定。同时,文中也指出了在这个领域中的数学模型技术和野外测试技术正在迅速发展之中,本文讨论的范围仅限于多孔介质及等价多孔介质中的溶质运移问题。

ON GEOLOGICAL NUCLEARWASTE AND TOXIC CHEMICAL WASTE REPOSITORIES

To preven t nuclear and toxic chemical waste into biosphere to pollute environment, since late 1970's the interest in describing radionuclide and chemical migration in subsurface systemhas increased considerably .Several contaminant transport models have been discussed in this paper. However, factors that limit routine use of these models include the difficulty of determining the field coefficient of dispersion and numerical difficulties encountered when solving the dispersion equation. The modeling technique and well testing technique in the field are in progress. We only focus attention on contaminant migration in sa tura ted Non-Indura ted geological deposits in this paper.