新型钢桶在核电站放射性废液固化系统中的应用

The Introduction of New Type Steel Drums in Liquid Radioactive Waste Solidification System of NPPs

目前在运行核电站的放射性废液的处理通常采用水泥固化的方法,且大部分电站使用CD1型混凝土容器作为固化体包装容器,而CD1型混凝土容器本身体积较大,导致最终废物体积较大,增加废物处置负担。本文本着废物最小化的理念,为了减少废物体积,在不改动系统功能的基础上采用自行研制的新型钢桶取代原CD1型混凝土容器。现场验证结果表明,新型钢桶性能满足相关性能要求,在原固化系统上应用可行,最终废物体积减少了43%。

Cement solidification is commonly used for liquid radioactive waste treatment in operating NPPs, and most plants use CDI-type concrete container to package the resulted waste form. The volume of CDI-type container itself is, however, so large that the final waste volume and waste disposal burden are both increased. In line with the concept of waste minimization, the feasibility of using self-developed steel drum to replace CDI-type concrete container is explored, without changing the process equipment and plant structures. Verification tests show that the new type steel drum meets the performance requirements and can be workable in the existing solidification system, and the final waste volume is reduced by 43 %.