Application of electrochemical methods to aqueous reprocessing of spent nuclear fuel

Published data demonstrating the possibilities of electrochemical methods as applied to solving particular problems arising in various steps of industrial reprocessing of spent nuclear fuel using the Purex process are summarized. Attention is given to stabilization of U, Np, and Pu in required valence states in aqueous solutions and two-phase systems in the course of Pu stripping in the step of its separation from U, to efficient dissolution of PuO2, to isolation of noble metals from high-level liquid waste, and to breakdown of spent organic solvents and complexing agents. Progress in the industrial use of electrolysis, in search for new electrode materials, and in studies of the mechanisms of electrocatalytic oxidation processes is noted.