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放射性废物固化体的浸出性能研究是一项长期的综合性的课题.不仅要研究固化体中有害组分在长期浸泡过程中向介质(环境)中迁移的规律、机制、迁移速率和数量以及各种因素对浸出过程的控制和影响;而且还要研究固化体自身在与浸泡溶液(浸出剂)长期接触过程中的变化及其对废物处理和处置的直接影响或间接乃至潜在的影响,进而为废物管理提供必不可少的信息. 然而在上述逐项研究项目中至关重要的是实验基本数据,尤其是长期的试验数据.本文将叙述沥青-硝酸钠固化体的4.24年的浸出试验结果.
The study of the leaching performance of radioactive waste solidified body is a long-term comprehensive subject not only to study the law, mechanism, migration rate and quantity of harmful components in solidified body to medium (environment) during long-term immersion, But also to study the changes of the solidified body itself during the long-term contact with the soaking solution (leaching agent) and its direct or indirect and even potential impact on the waste treatment and disposal and further Waste management provides essential information, however, crucial to each of the above studies is the basic experimental data, especially the long-term experimental data. This article describes the 4.24-year leaching test results for a bitumen-sodium nitrate cured body.