ИСТИНА

Currently high-level nuclear wastes are vitrified to produce either borosilicate or aluminophosphate (in Russia only) glass-based materials suitable for a long-term storage. To improve immobilization properties existing glasses are being modified and novel glasses are being designed. Special attention is paid to sodium-aluminum-iron phosphate glasses capable to incorporate higher amounts of transition metal oxides, sulfates, molybdates, and other troublesome components than borosilicate ones.