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Considering Timescales in the Post-closure Safety of Geological Disposal of Radioactive Waste

Considering Timescales in the Post-closure Safety of Geological Disposal of Radioactive Waste PDF Author: Organisation for Economic Co-operation and Development
Publisher: OECD Publishing
ISBN:
Category : Business & Economics
Languages : en
Pages : 164

Book Description
A key challenge in the development of safety cases for the deep geological disposal of radioactive waste is handling the long time frame over which the radioactive waste remains hazardous. The intrinsic hazard of the waste decreases with time, but some hazard remains for extremely long periods. This report reviews the current status and ongoing discussions of this issue, addressing such issues as ethical principles, the evolution of the hazard over time, uncertainties in the evolution of the disposal system (and how these uncertainties themselves evolve), the stability and predictability of the geological environment, repository planning and implementation including regulatory requirements, siting decisions, repository design, the development and presentation of safety cases and the planning of pre- and post-closure institutional controls such as monitoring requirements.

Considering Timescales in the Post-closure Safety of Geological Disposal of Radioactive Waste

Considering Timescales in the Post-closure Safety of Geological Disposal of Radioactive Waste PDF Author: Organisation for Economic Co-operation and Development
Publisher: OECD Publishing
ISBN:
Category : Business & Economics
Languages : en
Pages : 164

Book Description
A key challenge in the development of safety cases for the deep geological disposal of radioactive waste is handling the long time frame over which the radioactive waste remains hazardous. The intrinsic hazard of the waste decreases with time, but some hazard remains for extremely long periods. This report reviews the current status and ongoing discussions of this issue, addressing such issues as ethical principles, the evolution of the hazard over time, uncertainties in the evolution of the disposal system (and how these uncertainties themselves evolve), the stability and predictability of the geological environment, repository planning and implementation including regulatory requirements, siting decisions, repository design, the development and presentation of safety cases and the planning of pre- and post-closure institutional controls such as monitoring requirements.

Managing Radioactive Waste Safely

Managing Radioactive Waste Safely PDF Author: Great Britain. Department for Environment, Food & Rural Affairs
Publisher: The Stationery Office
ISBN: 9780101738620
Category : Architecture
Languages : en
Pages : 104

Book Description
Published as part of the managing radioactive waste safely (MRWS) programme, this white paper sets out the UK Government's framework for managing higher activity radioactive waste in the long-term through geological disposal, coupled with safe and secure interim storage and ongoing research and development to support its optimised implementation. It also invites communities to express an interest in opening up, without commitment, discussions with Government on the possibility of hosting a geological disposal facility at some point in the future. In June 2007 the Government published a MRWS consultation document in conjunction with the devolved administrations for Wales and Northern Ireland. Responses to this consultation have been taken into consideration in the development of this white paper. The paper sets out the framework for the future implementation of geological disposal that includes: the approach to compiling and updating the UK Radioactive Waste Inventory (UKRWI) and using it as a basis for discussion with potential host communities; the Nuclear Decommissioning Authority's technical approach for developing a geological disposal facility, including the use of a staged implementation approach and ongoing research and development to support delivery. The white paper covers the amount of waste for disposal; preparation and planning for geological disposal; protecting people and the environment: regulation, planning and independent scrutiny; site selection using a voluntarism and partnership approach; the site assessment process; timing and next steps.

Safety of Radioactive Waste Disposal

Safety of Radioactive Waste Disposal PDF Author: International Atomic Energy Agency
Publisher:
ISBN:
Category : Business & Economics
Languages : en
Pages : 582

Book Description
Accompanying CD-ROM contains the complete text of the printed volume.

Multiple Roles of Clays in Radioactive Waste Confinement

Multiple Roles of Clays in Radioactive Waste Confinement PDF Author: S. Norris
Publisher: Geological Society of London
ISBN: 1786204045
Category : Science
Languages : en
Pages : 364

Book Description
This Special Publication highlights the importance of clays and clayey material, and their multiple roles, in many national geological disposal facilities for higher activity radioactive wastes. Clays can be both the disposal facility host rock and part of its intrinsic engineered barriers, and may be present in the surrounding geological environment. Clays possess various characteristics that make them high-quality barriers to the migration of radionuclides and chemical contaminants, e.g. very little water movement, diffusive transport, retention capacity, self-sealing capacity, stability over millions of years, homogeneity and lateral continuity.

Review of the Department of Energy's Plans for Disposal of Surplus Plutonium in the Waste Isolation Pilot Plant

Review of the Department of Energy's Plans for Disposal of Surplus Plutonium in the Waste Isolation Pilot Plant PDF Author: National Academies of Sciences, Engineering, and Medicine
Publisher: National Academies Press
ISBN: 0309498619
Category : Political Science
Languages : en
Pages : 225

Book Description
In 2018, the National Academies of Sciences, Engineering, and Medicine issued an Interim Report evaluating the general viability of the U.S. Department of Energy's National Nuclear Security Administration's (DOE-NNSA's) conceptual plans for disposing of 34 metric tons (MT) of surplus plutonium in the Waste Isolation Pilot Plant (WIPP), a deep geologic repository near Carlsbad, New Mexico. It provided a preliminary assessment of the general viability of DOE-NNSA's conceptual plans, focused on some of the barriers to their implementation. This final report addresses the remaining issues and echoes the recommendations from the interim study.

Near Surface Disposal Facilities for Radioactive Waste

Near Surface Disposal Facilities for Radioactive Waste PDF Author: International Atomic Energy Agency
Publisher:
ISBN: 9789201143136
Category : Science
Languages : en
Pages : 0

Book Description
This Safety Guide provides recommendations on how to meet safety requirements on the disposal of radioactive waste. It is concerned with the disposal of solid radioactive waste by emplacement in designated facilities at or near the land surface. The Safety Guide provides guidance on the development, operation and closure of, and on the regulatory control of, near surface disposal facilities, which are suitable for the disposal of very low level waste and low level waste. The Safety Guide provides guidance on a range of disposal methods, including the emplacement of solid radioactive waste in earthen trenches, in above ground engineered structures, in engineered structures just below the ground surface and in rock caverns, silos and tunnels excavated at depths of up to a few tens of metres underground. It is intended for use primarily by those involved with policy development for, with the regulatory control of, and with the development and operation of near surface disposal facilities.

Low-level Radioactive Waste Repositories

Low-level Radioactive Waste Repositories PDF Author: OECD Nuclear Energy Agency
Publisher: OECD Publishing
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 188

Book Description
This report sets out the costs of operating disposal sites for LLW in OECD countries, as well as the factors that may affect the costs of sites being developed.

Borehole Disposal Facilities for Radioactive Waste

Borehole Disposal Facilities for Radioactive Waste PDF Author: International Atomic Energy Agency
Publisher:
ISBN: 9789201091093
Category : Technology & Engineering
Languages : en
Pages : 98

Book Description
This Safety Guide addresses the safety issues relevant To The disposal of disused sealed sources and provides guidance on meeting the safety requirements and criteria for such facilities. In addition to making recommendations on safety for borehole facilities, such as in site selection and characterization, design and operation, and for closure and post-closure, The Safety Guide also covers provision for containment and isolation, And The performance requirements of the engineered components of the disposal system.

Scientific and Technical Basis for the Geological Disposal of Radioactive Wastes

Scientific and Technical Basis for the Geological Disposal of Radioactive Wastes PDF Author:
Publisher: Technical Reports Series
ISBN:
Category : Business & Economics
Languages : en
Pages : 98

Book Description
This report focuses on the different functions of a repository within its life cycle and describes the processes relevant to the containment of long lived radioactive waste and other criteria influencing the long term integrity of the repository. It emphasizes the central role of safety and the importance of safety/performance assessments in the decision making process during repository development.

Geological Repository Systems for Safe Disposal of Spent Nuclear Fuels and Radioactive Waste

Geological Repository Systems for Safe Disposal of Spent Nuclear Fuels and Radioactive Waste PDF Author: Michael J Apted
Publisher: Woodhead Publishing
ISBN: 0081006527
Category : Technology & Engineering
Languages : en
Pages : 804

Book Description
Geological Repository Systems for Safe Disposal of Spent Nuclear Fuels and Radioactive Waste, Second Edition, critically reviews state-of-the-art technologies and scientific methods relating to the implementation of the most effective approaches to the long-term, safe disposition of nuclear waste, also discussing regulatory developments and social engagement approaches as major themes. Chapters in Part One introduce the topic of geological disposal, providing an overview of near-surface, intermediate depth, and deep borehole disposal, spanning low-, medium- and high-level wastes. Part Two addresses the different types of repository systems – crystalline, clay, and salt, also discussing methods of site surveying and construction. The critical safety issue of engineered barrier systems is the focus of Part Three, with coverage ranging from nuclear waste canisters, to buffer and backfill materials. Lastly, Parts Four and Five focus on safety, security, and acceptability, concentrating on repository performance assessment, then radiation protection, environmental monitoring, and social engagement. Comprehensively revised, updated, and expanded with 25% new material on topics of current importance, this is the standard reference for all nuclear waste management and geological repository professionals and researchers. - Contains 25% more material on topics of current importance in this new, comprehensive edition - Fully updated coverage of both near-surface/intermediate depth, and deep borehole disposal in one convenient volume - Goes beyond the scientific and technical aspects of disposal to include the political, regulatory, and societal issues involved, all from an international perspective