Balance evaluation for processing spent nuclear fuel of different origin at the plant RT-1 "Mayak" is performed. It is shown that at formation of vitrified high level waste the aluminophosphate matrix comprises a mixture of fission and transuranic radionuclides, which is not genetically related to the burn-up of nuclear fuel during operation of VVER-440 Rivne NPP. The vitrified high-level waste, which will be transferred for storage and disposal in Ukraine, were formed during reprocessing of waste from different nuclear facilities using low- and highly enriched uranium. The share of RNPP spent fuel in the total amount of fuel reprocessed at the RT-1 from the year 1993 to 2010 was not more than 10.8 %.
Keywords: spent nuclear fuel, pressurized water power reactor VVER-440, vitrified high-level waste, the core, pressurized water reactor for nuclear submarines