International Conference on the Safety of Radioactive Waste Management, Decommissioning, Environmental Protection and Remediation: Ensuring Safety and Enabling Sustainability

Radioactive waste management as part of NPP decommissioning

Not scheduled

20m

M-Building (IAEA Headquarters, Vienna)

ORAL Track 5 - Practical experiences in integrating safety and sustainable development

Speaker

Mrs Mariia Voznesenskaia (Fuel Company of ROSATOM TVEL)

Description

INTRODUCTION
The Russian nuclear industry has not only a rich history of development and operation of nuclear facilities, but also experience on decommissioning of nuclear facilities and associated radioactive waste management (RWM, RAW management).
The paper will describe Rosatom's experience and practices in radioactive waste management as part of NPP decommissioning.
I. COMPLIANCE OF ROSATOM'S DECOMMISSIONING AND RW MANAGEMENT PRACTICES WITH EU TAXONOMY CRITERIA
• Financing of decommissioning and RW management
• RAW disposal
• Safety as the primary approach to RAW management
II. DECOMMISSIONING OF NOVOVORONEZH NPP UNITS 1 AND 2
The experience of setting up Pilot and Demonstration Decommissioning Engineering Centers for safe and efficient decommissioning of shutdown nuclear power units. Implementation of the concept "immediate dismantling" is the most effective option compared to "deferred dismantling" and ensures minimum cost of decommissioning of NPP units. Its implementation enables maximum use of residual resource of equipment and structures of shutdown units, reduction of operating costs for maintenance of shutdown units for decommissioning due to duration of decommissioning, use of capabilities of existing complexes for radioactive waste management, decontamination facilities, as well as use of qualification of personnel operating the shutdown unit.
• DISMANTLING AND FRAGMENTATION
• DECONTAMINATION
Methods and techniques used in decontamination allow up to 90% of the metal to be returned to industrial reuse.
• RADIOACTIVE WASTE MANAGEMENT
Plasma reprocessing provides high rates of waste volume reduction, reduction of secondary waste generated and obtaining the final product of recycling in the form of melted slag compound, which has high mechanical strength and chemical resistance to aggressive environmental impacts.
III. RAW MANAGEMENT AT RUSSIAN NPPS
Units and Centers for RAW Treatment
• technologies for the treatment of liquid radioactive waste.
• technologies for solid waste treatment.
CONCLUSION
The Russian nuclear industry has the necessary experience and knowledge to apply them in world practice.
REFERENCES
https://www.atomic-energy.ru/articles/2021/10/15/118509?ysclid=lgzfm2tiob796764197

Presentation materials

Abstract_RWM as part of NPP D&D_Rosatom_TVEL_Voznesenskaia_Korneev.docx