Development of Integrated Treatment System to Minimize LLLW From Purex Reprocessing Plant

Reduction of radioactive waste volume is one of the important issues for spent fuel reprocessing plants. JGC has intensively developed radioactive waste processing technologies aiming at waste volume reduction and at immobilization with environmentally low impact for Purex type reprocessing plants. These technologies are Electrolytic Decomposition Process of Nitric Acid (E-DeP), Catalytic Decomposition Process of Nitrate Ion (C-DeP) and Electrodialytic Na Separation Process (E-SeP). An effective combination of each technology results in reduction of numbers of waste packages by one-twentieth.