Improving volume reduction methods in Japan

A description is given of research and development work being carried out in Japan into the volume reduction of radioactive waste. Three techniques which are either currently in use or about to be put into use are described. These are: incineration; oxidation of the ion exchange resin; recycling to recover sulphuric acid and sodium hydroxide from the regeneration wastes of the demineralizer. The design of a radwaste treatment system which uses all three processes is described. (U.K.)