COMPREHENSIVE FLOWCHART PROPOSED TO PROCESS THE SOLUTION AND THE SEDIMENT PARTS OF THE ACCUMULATED HLW INVENTORY OF COMPLEX CHEMICAL COMPOSITION FROM PA MAYAK’S RADIOCHEMICAL PRODUCTION FACILITIES

The paper presents a comprehensive multi-option flowchart proposed to process the accumulated HLW inventories of complex chemical composition describing the core processes, the characteristics of products formed at each processing stage and the relationship between the individual elements of the proposed flowchart. It specifies the process equipment (or its prototypes) to be introduced under the proposed flowchart. It presents the thresholds for the preliminary feasibility assessment of the processing options proposed for the solution and the sedimentary parts of the accumulated HLW inventories. The study demonstrates the feasibility of further efforts seeking to select optimal design options under the proposed flowchart.

Keywords: storage tanks, high-level waste, sediment, microfiltration, neutralization, sorption, extraction, cementation, vitrification, electric furnace, induction heating unit for cold crucible melting, radioactive waste.

Kozlov P. V., Shaidullin S. M., Markova D. V., Loginov M. V., Remizov M. B., Lukin S. A., Zubrilovsky E. N. Comprehensive flowchart proposed to process the solution and the sediment parts of the accumulated HLW inventory of complex chemical composition from PA Mayak’s radiochemical production facilities. Radioactive Waste, 2024, no. 4 (29), pp. 6 —15. DOI: 10.25283/2587-9707-2024-4-6 -15. (In Russian).