METHOD FOR PROCESSING REACTOR GRAPHITE WASTE Russian patent published in 2021 - IPC G21F9/28 G21F9/30 

FIELD: nuclear technology.

SUBSTANCE: invention relates to nuclear technology, and more specifically to methods for decontamination treatment of irradiated reactor graphite, for example, irradiated graphite blocks of reflectors and active zone moderators, and can be used when decommissioning reactors with a graphite moderator. The surface layer of the inner hole of the graphite block is removed by waterjet cutting and sent for processing or burial, and then the remaining part is subjected to heat treatment with an inert gas with a volume oxygen content of 3-5% at a temperature of 700°C for 1-2 hours.

EFFECT: proposed method for handling reactor graphite blocks has a high processing rate, a small volume of secondary radioactive waste, a reduction in the leaching of radioactive waste from graphite and can be used in systems for processing and disposal of radioactive waste.

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