Public consent for the geologic disposal of highly radioactive wastes and spent nuclear fuel

The engineering viability of disposal of aluminum-clad, aluminum-based spent nuclear fuel (Al-SNF) in a geologic repository requires a thermal analysis to provide the temperature history of the waste form. Calculated temperatures are used to demonstrate compliance with criteria for waste acceptance into the geologic disposal system and as input to assess the chemical and physical behavior of the waste form within the Waste Package (WP). The leading codisposal WP design proposes that a central DOE Al-SNF canister be surrounded by five Defense Waste Process Facility (DWPF) glass log canisters, that is, High-level Waste Glass Logs (HWGL’s), and placed into a WP in a geologic disposal system. A DOE SNF canister having about 0.4318m diameter is placed along the central horizontal axis of the WP. The five HWGL’s will be located around the peripheral region of the DOE SNF canister within the cylindrical WP container. The codisposal WP will be laid down horizontally in a drift repository. In this situation, two waste form options for Al-SNF disposition are considered using the codisposal WP design configurations. They are the direct Al-SNF form and the melt-dilute ingot. In the present work, the reference geologic and design conditions are assumed for the analysis even though the detailed package design is continuously evolved. This paper primarily dealt with the thermal performance internal to the codisposal WP for the qualification study of the WP containing Al-SNF. Thermal analysis methodology and decay heat source terms have been developed to calculate peak temperatures and temperature profiles of Al-SNF package in the DOE spent nuclear fuel canister within the geologic codisposal WP.

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Thermal Modeling and Performance Analysis of Interim Dry Storage and Geologic Disposal Facilities for Spent Nuclear Fuel

Nuclear Technology ◽

10.13182/nt00-a3108 ◽

2000 ◽

Vol 131 (1) ◽

pp. 124-151 ◽

Cited By ~ 1

Author(s):

Si Y. Lee ◽

Robert L. Sindelar ◽

David C. Losey

Keyword(s):

Performance Analysis ◽

Nuclear Fuel ◽

Spent Nuclear Fuel ◽

Thermal Modeling ◽

Dry Storage ◽

Geologic Disposal ◽

And Performance

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Determination of79Se and135Cs in Spent Nuclear Fuel for Inventory Estimation of High-Level Radioactive Wastes

Journal of Nuclear Science and Technology ◽

10.1080/18811248.2011.9711768 ◽

2011 ◽

Vol 48 (5) ◽

pp. 851-854 ◽

Cited By ~ 21

Author(s):

Shiho ASAI ◽

Yukiko HANZAWA ◽

Keisuke OKUMURA ◽

Nobuo SHINOHARA ◽

Jun INAGAWA ◽

...

Keyword(s):

Nuclear Fuel ◽

Spent Nuclear Fuel ◽

Radioactive Wastes ◽

High Level

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COST ESTIMATION INPUTS FOR SPENT NUCLEAR FUEL GEOLOGIC DISPOSAL CONCEPTS (Revision 1 ).

10.2172/1600109 ◽

2016 ◽

Author(s):

Ernest Hardin ◽

Elena Kalinina

Keyword(s):

Nuclear Fuel ◽

Cost Estimation ◽

Spent Nuclear Fuel ◽

Geologic Disposal

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COST ESTIMATION INPUTS FOR SPENT NUCLEAR FUEL GEOLOGIC DISPOSAL CONCEPTS.

10.2172/1608749 ◽

2015 ◽

Author(s):

Ernest Hardin

Keyword(s):

Nuclear Fuel ◽

Cost Estimation ◽

Spent Nuclear Fuel ◽

Geologic Disposal

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Modernization of FSUE Atomflot Infrastructure and Material and Technical Resources Aimed at Provision of Environmental Safety in the Northwest of Russia

Arctic Ecology and Economy ◽

10.25283/2223-4594-2017-1-130-136 ◽

2017 ◽

pp. 130-136

Author(s):

M.M. Kashka ◽

◽

E.A. Efanskaya ◽

V.A. Kobzev ◽

A.Y. Bogdanov ◽

...

Keyword(s):

Nuclear Fuel ◽

Spent Nuclear Fuel ◽

Environmental Safety ◽

Radioactive Wastes ◽

Current Status ◽

Materials Management ◽

Murmansk Region ◽

Environmental Rehabilitation ◽

The Status ◽

Northwest Of Russia

The article reviews FSUA Atomflot assets and facilities used to manage spent nuclear fuel (SNF) and radioactive wastes (RW), their modernization and development, as well as sources of the aforementioned processes financing, which include both Russian Federation and International funding. FSUE Atomflot participation in the environmental rehabilitation of the Northwest of Russia is analyzed, part of which is the status of retired atomic icebreakers and special maintenance vessels decommissioning. The key direction of FSUE Atomflot policy is safe handling of spent nuclear fuel and radioactive wastes accumulated by the Company itself and other organizations in Murmansk region. Modernization of FSUE Atomflot infrastructure and material and technical resources is meant to solve this task. FSUE Atomflot operates state atomic icebreaking fleet, which includes commercial operation, maintenance, modernization, repair and decommissioning of nuclear-powered icebreakers and special maintenance vessels. Handling of spent nuclear fuel and radioactive wastes that are accumulated during the process of operation through the assets life cycle is an important part of the Company’s activity. The important role in the provision of environmental safety belongs to the Strategic Master Plan for Decommissioning of Retired Russian Nuclear Fleet and Environmental Rehabilitation of Its Supporting Infrastructure in the Northwest of Russia, which was ordered by Rosatom and developed under scientific guidance by Nuclear Safety Institute of Russian Academy of Science. The article further describes the process of SNF and RW handling by FSUE Atomflot, brings up the statistical data of the materials management and transportation. Second part of the article describes the decommissioning of atomic icebreakers and maintenance vessels as part of the environmental safety provision process. The current status of the process, results and development plans are resumed.

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