Abstract: 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.

Key words: radioactive waste resin, wet oxidation, volume reduction treatment