放射性废树脂湿法氧化处理技术研究  

Research on wet oxidation technology of radioactive spent resins

作　　者：张丽 王建龙[2] 席亚慧 韩旭 秦翔 闫晓俊[1] 柳兆峰[1] 高超[1] 郭喜良[1] ZHANG Li;WANG Jianlong;XI Yahui;HAN Xu;QIN Xiang;YAN Xiaojun;LIU Zhaofeng;GAO Chao;GUO Xiliang(China Institute for Radiation Protection,Taiyuan 030006;Institute of Nuclear Energy and New Energy Technology of Tsinghua University,Beijing 100084)

机构地区：[1]中国辐射防护研究院,太原030006 [2]清华大学核能与新能源技术研究院,北京100084

出　　处：《辐射防护》2024年第S01期97-101,共5页Radiation Protection

摘　　要：通过采用湿法氧化技术处理克级放射性废树脂,考察了反应体系的pH值、氧化剂浓度和滴加速率对废树脂降解效果的影响。结果表明当体系pH值为2、双氧水浓度为50%时,可实现废树脂的高效降解,降解效率达99%以上。在相同的工艺参数条件下,进行了不同类型的废树脂湿法氧化实验,降解效率均达到99%以上,表明湿法氧化工艺对不同类型树脂的处理具有兼容性。基于此,开展了废树脂千克级的工艺放大实验,湿法氧化工艺表现出良好的稳定性。By using wet oxidation technology to treat gram-level radioactive waste resin,the effects of pH value of the reaction system,oxidant concentration and drop acceleration rate on the degradation effect of the waste resin were investigated.The results showed that when the system pH value is 2 and the concentration of hydrogen peroxide is 50%,efficient degradation of the waste resin can be achieved.Degradation efficiency can reach more than 99%.Under the same process parameters,different types of waste resin wet oxidation experiments were carried out,and the degradation efficiency reached more than 99%,indicating that the wet oxidation process is compatible with the treatment of different types of resins.Based on this study,the process amplification experiment with kilogram level waste resin was carried out,and the wet oxidation process showed good stability.

关 键 词：放射性废树脂 湿法氧化 减容处理 

分 类 号：TL941[核科学技术—辐射防护及环境保护]