No abstract

The conversion of high-level radioactive wastes to-phosphate glass offers a promising means of incorporating fission products in stable media suitable for ultimate disposal. In the Brookhaven process, phosphoric acid is added to the aqueous waste and the solution converted.to phosphate glass in•r~ continuous operation upon raising the temperature in two steps to ll00°C-l200°C. The process has be~n tested on a pilot plant scale for some 3000 hours. The report presents the results of the Brookhaven. investigation on the development of the phosphate glass process with emphasis on the performance characteristics of the individual process units.