Wet-oxidation of spent organic waste tributyl phosphate/diluents

Tributyl phosphate was used in reprocessing of spent nuclear fuel in the Purex process. The amount of uranium retained in the organic phase depends on the type of TBP/diluent. Destruction of spent TBP is of high interest in waste management. The use of the oxidative degradation of TBP diluted with kerosene, carbon tetrachloride, benzene and toluene using potassium permanganate as oxidant was carried out to produce stable inorganic dry particle residue which is then immobilized in different matrices. The different factors affecting the destruction of spent waste were investigated. The uptake and decontamination factor for both Eu-152,Eu-154 and Hf-181 and the analysis of the final product have been studied.