Immobilization of high level waste in Synroc

摘要: Synroc, a polyphase titanate ceramic, is being developed in Australia as second generation waste from for the immobilization of high-level (HLW) nuclear plants. The form, produced by reactive hot-pressing, has excellent resistance to leaching and there good evidence that long-term release rate elements Synroc will be order 10/sup /minus/4/ - /minus/5/ g/m/sup 2/ per day at 90/degrees/C. durability not affected significantly impurities normally present liquid reprocessing operations sensitive fluctuations composition waste-stream. Reducing conditions prevalent during fabrication ensure losses volatiles such Cs Ru are restricted levels around 0.1% or better. important physical properties also superior those current forms, allowing greater flexibility options managing storage eventual disposal waste.