Principles of low-waste reprocessing of radioactive sodium coolant in BN-reactor decommissioning

Based on the experience gained on sodium coolant cleaning from radionuclides, deletion of radioactive sodium from the equipment and its conversion into safe compounds, deactivation of BOR-reactor primary circuit components a concept was suggested to reduce radioactive waste during BN-reactor decommissioning. It consists in the fine cleaning of sodium and equipment from all radionuclides directly in the reactor primary circuit with the following safe removal of sodium and its remnants and utilization of the dis-activated sodium and equipment. (author)