Review of Recovery of Pu(Ⅳ) in Organic Waste

The recovery of Pu(Ⅳ) is an important part and technical difficulities of the nuclear industry. Pu(Ⅳ) can be stripped from fresh organic waste by complexation method. The reduction method can treat waste placed in a short time. Reductants include inorganic reductants and organic reductants, such as hydroxylamine, urea, hydrazine, aldehydes, hydroxamic acids, aldehydes oximes and so on. For the purpose of solving the waste placed in a long time, the electrochemical method, photochemical method have been explored. This paper summarizes the trend of the recovery methods. Furthermore, some chemical problems are analyzed and discussed.