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Author: Publisher: ISBN: Category : Languages : en Pages : 5
Book Description
One option for the disposition of excess plutonium is immobilization in a titanate-based ceramic that is produced by dry pressing and sintering. This ceramic material will be in the form of disks that will be loaded into small cans. These cans will be placed in high-level waste canisters and surrounded by high-level borosilicate waste glass to provide a radiation barrier for proliferation resistance. This entire package is referred to as the immobilized plutonium waste form (IPWF). The IPWF will be placed in a geologic repository for high-level waste for final disposal. Thus, these canisters must meet repository acceptance requirements. A set of specifications that the IPWF must satisfy has been developed. These specifications include requirements necessary for final disposal as well as requirements to ensure successful processing in the high-level waste vitrification facility.
Author: Publisher: ISBN: Category : Languages : en Pages : 5
Book Description
One option for the disposition of excess plutonium is immobilization in a titanate-based ceramic that is produced by dry pressing and sintering. This ceramic material will be in the form of disks that will be loaded into small cans. These cans will be placed in high-level waste canisters and surrounded by high-level borosilicate waste glass to provide a radiation barrier for proliferation resistance. This entire package is referred to as the immobilized plutonium waste form (IPWF). The IPWF will be placed in a geologic repository for high-level waste for final disposal. Thus, these canisters must meet repository acceptance requirements. A set of specifications that the IPWF must satisfy has been developed. These specifications include requirements necessary for final disposal as well as requirements to ensure successful processing in the high-level waste vitrification facility.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
This integrated plan for the DOE Office of Fissile Materials Disposition describes the technology development and major project activities necessary to support the deployment of the immobilization approach for disposition of surplus weapons-usable plutonium. The plan describes details of the development and testing tasks needed to provide technical data for design and operation of a plutonium immobilization plant based on the ceramic can-in-canister technology. The plan also presents tasks for characterization and performance testing of the immobilization form to support a repository licensing application and to develop the basis for repository acceptance of the plutonium form. Essential elements of the plant project (design, construction, facility activation, etc.) are described, but not developed in detail, to indicate how the test results tie into the overall plant project. Given the importance of repository acceptance, specific activities to be conducted by the Office of Civilian Radioactive Waste Management to incorporate the plutonium form in the repository licensing application are provided in this document, together with a summary of how immobilization activities provide input to the license activity and waste qualification. The ultimate goal of the immobilization project is to develop, construct, and operate facilities that will immobilize from about 18 to 50 tonnes of US surplus plutonium materials in a manner that meets the ''spent fuel'' standard and is acceptable for disposal in a geologic repository. The can-in-canister technology is accomplished by encapsulating the plutonium-containing ceramic forms within large canisters of high level waste glass.
Author: United States. Congress. House. Committee on Armed Services. Strategic Forces Subcommittee Publisher: ISBN: Category : Science Languages : en Pages : 120
Author: E.R. Merz Publisher: Springer Science & Business Media ISBN: 9780792338413 Category : Science Languages : en Pages : 360
Book Description
This NATO Advanced Research Workshop on Disposal of Weapons Plutonium is a follow-up event to two preceding workshops, each dealing with a special subject within the overall disarmament issue: "Disposition of Weapon Plutonium", sponsored by the NATO Science Committee. The first workshop of this series was held at the Royal Institute of International Affairs in London on 24-25 January 1994, entitled "Managing the Plutonium Surplus, Applications, and Options". Its over all goal was to clarify the current situation with respect to pluto nium characteristics and availability, the technical options for use or disposal, and their main technical, environmental, and economic constraints. In the immediate term, plutonium recovered from dismantled nuclear warheads will have to be stored securely, and under international safeguards if possible. In the intermediate term, the principal alter natives for disposition of this plutonium are: irradiation in mixed oxide (MOX) fuel assemblies in existing commercial light-water reac tors or in specially adapted light-water reactors capable of operation with full cores of MOX fuel .and irradiation in future fast reactors. Another option is to blend plutonium with high-level waste as it is vitrified for final disposal in a geologic repository. In both cases, the high radioactivity of the resulting products provides "self shielding" and prevents separation of plutonium without already developed and available sophisticated technology. The so-called "spent fuel standard" as an effective protection barrier is - quired in either case.
Author: Ian W. Donald Publisher: John Wiley & Sons ISBN: 1444319361 Category : Science Languages : en Pages : 526
Book Description
The safe storage in glass-based materials of both radioactiveand non-radioactive hazardous wastes is covered in a single book,making it unique Provides a comprehensive and timely reference source at thiscritical time in waste management, including an extensive andup-to-date bibliography in all areas outlined to waste conversionand related technologies, both radioactive and non-radioactive Brings together all aspects of waste vitrification, drawscomparisons between the different types of wastes and treatments,and outlines where lessons learnt in the radioactive waste fieldcan be of benefit in the treatment of non-radioactive wastes
Author: Publisher: ISBN: Category : Languages : en Pages : 61
Book Description
The purpose of this document is to perform a preliminary design basis event (DBE) analysis of the immobilized plutonium (can-in-canister) waste form to be referred to in this analysis as high level waste/plutonium (HLW/Pu). The objective of the analysis is to determine any preclosure safety impacts of the waste form on the Monitored Geologic Repository (MGR). The scope of this analysis is to determine the offsite dose consequences and associated frequencies of selected DBEs for systems handling disposable canisters that bound all surface and subsurface off-normal events, and to compare these results against regulatory limits. The results of this work are preliminary and are intended to be used to establish a set of preliminary MGR and waste form requirements, to identify mitigation or prevention options that may be required to meet regulatory limits, and to provide input to the Site Recommendation (SR) report. This document is prepared in accordance with the associated development plan (Civilian Radioactive Waste Management System Management and Operating Contractor [CRWMS M & O] 1999e).
Author: United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water Development Publisher: ISBN: Category : Federal aid to energy development Languages : en Pages : 666
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
The Department of Energy (DOE) has declared approximately 38.2 tonnes of weapons-grade plutonium to be excess to the needs of national security, 14.3 tonnes of fuel- and reactor-grade plutonium excess to DOE needs, and anticipates an additional 7 tonnes to be declared excess to national security needs. Of this 59.5 tonnes, DOE anticipates that ~ 7.5 tonnes will be dispositioned as spent fuel at the Geologic Repository and ~ 2 tonnes will be declared below the safeguards termination limit and be discarded as TRU waste at WIPP. The remaining 50 tonnes of excess plutonium exists in many forms and locations around the country, and is under the control of several DOE Offices. The Materials Disposition Program (MD) will be receiving materials packaged by these other Programs to disposition in a manor that meets the spent fuel standard. For disposition by immobilization, the planned facilities will have only limited capabilities to remove impurities prior to blending the plutonium feedstocks to prepare feed for the plutonium immobilization ceramic formation process, Technical specifications are described here that allow potential feedstocks to be categorized as either acceptable for transfer into the MD Immobilization Process, or unacceptable without additional processing prior to transfer to MD. Understanding the requirements should allow cost benefit analyses to be performed to determine if a specific material should be processed sufficiently shipment to WIPP. Preliminary analyses suggest that about 45 tonnes of this material have impurity concentrations much lower than the immobilization acceptance specifications. In addition, approximately another 3 tonnes can easily be blended with the higher purity feeds to meet the immobilization specifications. Another 1 tonne or so can be processed in the immobilization plutonium conversion area to yield materials that can be blended to provide acceptable feed for immobilization. The remaining 3 tonnes must be excluded in their present form. However, approximately 2 tonnes of this remaining material could be processed in existing DOE facilities to make them acceptable to the immobilization process. This leaves about a tonne that probably should be declared waste and shipped to WIPP. These specifications are written primarily for large lots of material, for example, 100 kg or more of plutonium in the lot. Small lots of material, such as is common for Central Scrap Management Office (CSMO) materials, will have to be handled on a case by case basis.
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Author: United States. Congress. House. Committee on Armed Services. Strategic Forces Subcommittee
Author: E.R. Merz
Author: Ian W. Donald
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Author: United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water Development
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Author: Dane R. Spearing
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