Gas Generation And Migration In Deep Geological Radioactive Waste Repositories

Author : R.P. Shaw
Publisher : Geological Society of London
Page : 260 pages
File Size : 50,9 Mb
Release : 2015-06-11
Category : Science
ISBN : 9781862397224

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Gas Generation and Migration in Deep Geological Radioactive Waste Repositories by R.P. Shaw Pdf

Understanding the behaviour of gases in the context of radioactive waste disposal is a fundamental requirement in developing a safety case for the disposal of radioactive waste. Of particular importance are the long-term performance of bentonite buffers and cement-based backfill materials that may be used to encapsulate and surround the waste in a repository, and the behaviour of plastic clays, indurated mudrocks and crystalline formations that may be the host rocks for a repository. The EC Euratom programme funded project, FORGE, has provided new insights into the processes and mechanisms governing gas generation and migration with the aim of reducing uncertainty. This volume brings together papers on aspects of this topic arising from both the FORGE project and work undertaken elsewhere. This has been achieved by the acquisition of new experimental data coupled with modelling, through a series of laboratory and field-scale experiments performed at a number of underground research laboratories throughout Europe.

Author : Anonim
Publisher : Unknown
Page : 128 pages
File Size : 42,6 Mb
Release : 1999
Category : Electronic
ISBN : OCLC:1111114831

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Gas Migration and Two-phase Flow Through Engineered and Geological Barriers for a Deep Repository for Radioactive Waste by Anonim Pdf

Author : International Atomic Energy Agency
Publisher : Bernan Press(PA)
Page : 134 pages
File Size : 43,9 Mb
Release : 1982
Category : Radiation
ISBN : UCSD:31822010107696

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Site Investigations for Repositories for Solid Radioactive Wastes in Deep Continental Geological Formations by International Atomic Energy Agency Pdf

Author : S. Norris,E.A.C Neeft,M. Van Geet
Publisher : Geological Society of London
Page : 364 pages
File Size : 52,9 Mb
Release : 2019-08-05
Category : Science
ISBN : 9781786204042

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Multiple Roles of Clays in Radioactive Waste Confinement by S. Norris,E.A.C Neeft,M. Van Geet Pdf

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.

Author : Anonim
Publisher : Technical Reports Series
Page : 98 pages
File Size : 45,9 Mb
Release : 2003
Category : Business & Economics
ISBN : UOM:39015056788659

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Scientific and Technical Basis for the Geological Disposal of Radioactive Wastes by Anonim Pdf

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.

Author : Norbert T. Rempe
Publisher : Geological Society of America
Page : 132 pages
File Size : 49,8 Mb
Release : 2008-01-01
Category : Science
ISBN : 9780813741192

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Deep Geologic Repositories by Norbert T. Rempe Pdf

This volume contains 11 case studies of toxic waste repositories that use geologic isolation in order to accomplish the permanent and safe isolation of dangerous materials. It describes past and currently active facilities and also discusses generic considerations of the isolation capability of average crustal rock, apparently in an effort to convince audiences of the safety of these facilities.

Author : S. Norris,J. Bruno,M. Van Geet ,E. Verhoef
Publisher : Geological Society of London
Page : 366 pages
File Size : 43,7 Mb
Release : 2017-05-04
Category : Science
ISBN : 9781786202734

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Radioactive Waste Confinement by S. Norris,J. Bruno,M. Van Geet ,E. Verhoef Pdf

It is internationally accepted that the safest and most sustainable option for managing radioactive waste is geological disposal, utilizing both engineering and geology to isolate the waste and contain the radioactivity. This Special Publication contains 25 scientific studies presented at the 6th conference on ‘Clays in natural and engineered barriers for radioactive waste confinement’ held in Brussels, Belgium in 2015. The conference and this resulting volume cover many of the aspects of clay characterization and behaviour considered at various temporal and spatial scales relevant to the confinement of radionuclides in clay, from basic phenomenological process descriptions to the global understanding of performance and safety at repository and geological scales. The papers in this volume consider research into argillaceous media under the following topic areas: large-scale geological characterization; general strategy for clay-based disposal systems; geomechanics; mass transfer; bentonite evolution and gas transfer. The collection of different topics presented in this Special Publication demonstrates the diversity of geological repository research.

Author : Michael J Apted,Joonhong Ahn
Publisher : Elsevier
Page : 789 pages
File Size : 41,5 Mb
Release : 2010-07-27
Category : Technology & Engineering
ISBN : 9781845699789

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Geological Repository Systems for Safe Disposal of Spent Nuclear Fuels and Radioactive Waste by Michael J Apted,Joonhong Ahn Pdf

Geological disposal has been internationally adopted as the most effective approach to assure the long-term, safe disposition of the used nuclear fuels and radioactive waste materials produced from nuclear power generation, nuclear weapons programs, medical, treatments, and industrial applications. Geological repository systems take advantage of natural geological barriers augmented with engineered barrier systems to isolate these radioactive materials from the environment and from future populations. Geological repository systems for safe disposal of spent nuclear fuels and radioactive waste critically reviews the state-of-the-art technologies, scientific methods, regulatory developments, and social engagement approaches directly related to the implementation of geological repository systems. Part one introduces geological disposal, including multiple-barrier geological repositories, as well as reviewing the impact of nuclear fuel recycling practices and underground research laboratory activities on the development of disposal concepts. Part two reviews geological repository siting in different host rocks, including long-term stability analysis and radionuclide transport modelling. Reviews of the range of engineered barrier systems, including waste immobilisation technologies, container materials, low pH concretes, clay-based buffer and backfill materials, and barrier performance are presented in Part three. Part four examines total system performance assessment and safety analyses for deep geological and near-surface disposal, with coverage of uncertainty analysis, use of expert judgement for decision making, and development and use of knowledge management systems. Finally, Part five covers regulatory and social approaches for the establishment of geological disposal programs, from the development of radiation standards and risk-informed, performance-based regulations, to environmental monitoring and social engagement in the siting and operation of repositories. With its distinguished international team of contributors, Geological repository systems for safe disposal of spent nuclear fuels and radioactive waste is a standard reference for all nuclear waste management and geological repository professionals and researchers. Critically reviews the state-of-the-art technologies, scientific methods, regulatory developments, and social engagement approaches related to the implementation of geological repository systems Chapters introduce geological disposal and review the development of disposal concepts Examines long-term stability analysis, the range of engineered barrier systems and barrier performance

Author : I.S. Roxburgh
Publisher : Springer Science & Business Media
Page : 257 pages
File Size : 50,6 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789400926097

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Geology of High-Level Nuclear Waste Disposal by I.S. Roxburgh Pdf

Author : International Atomic Energy Agency
Publisher : Bernan Press(PA)
Page : 196 pages
File Size : 44,6 Mb
Release : 1983
Category : Business & Economics
ISBN : UOM:39015004458207

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Concepts and Examples of Safety Analyses for Radioactive Waste Repositories in Continental Geological Formations by International Atomic Energy Agency Pdf

Author : Dirk Scheer,Holger Class,Bernd Flemisch
Publisher : Springer Nature
Page : 232 pages
File Size : 41,6 Mb
Release : 2020-07-25
Category : Science
ISBN : 9783030511784

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Subsurface Environmental Modelling Between Science and Policy by Dirk Scheer,Holger Class,Bernd Flemisch Pdf

This book provides a broad overview of essential features of subsurface environmental modelling at the science-policy interface, offering insights into the potential challenges in the field of subsurface flow and transport, as well as the corresponding computational modelling and its impact on the area of policy- and decision-making. The book is divided into two parts: Part I presents models, methods and software at the science-policy interface. Building on this, Part II illustrates the specifications using detailed case studies of subsurface environmental modelling. It also includes a systematic research overview and discusses the anthropogenic use of the subsurface, with a particular focus on energy-related technologies, such as carbon sequestration, geothermal technologies, fluid and energy storage, nuclear waste disposal, and unconventional oil and gas recovery.

Author : Roland Pusch,Raymond N Yong,Masashi Nakano
Publisher : CRC Press
Page : 223 pages
File Size : 53,6 Mb
Release : 2018-08-06
Category : Science
ISBN : 9781351256780

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Geologic Disposal of High-Level Radioactive Waste by Roland Pusch,Raymond N Yong,Masashi Nakano Pdf

Geologic Disposal of High-Level Radioactive Waste examines the fundamental knowledge and conditions to be considered and applied by planners and other professionals when establishing national repository concepts, and constructing repositories for the long-term isolation of highly radioactive waste from surrounding crystalline rock. It emphasizes the important roles of structural geology, hydrogeology, hydrochemistry, and construction techniques. It specifically examines the disposal of steel canisters with spent reactor fuel in mined repositories (MR) at medium-depth, and in very deep boreholes (VDH). While disposal in mined repositories has been widely tested, the option of placing high-level radioactive waste in deep boreholes has been considered in the US, UK, and elsewhere in Europe, but has not yet been tested on a broad scale. This book examines the possibility of safe disposal for very long periods, proposing that the high salt content and density of groundwater at large depths are such that potentially contaminated water would not rise high enough to affect the more shallow biosphere. Features: Presents the best practices for disposal of spent fuel from nuclear reactors. Assesses waste isolation capacities in short- and long-term perspectives, and the associated risks. Describes site selection principles and the economics of construction of different types of repositories. Includes an appendix which provides the latest international recommendations and guidelines concerning the disposal of highly radioactive waste.

Author : Michael J Apted,Joonhong Ahn
Publisher : Woodhead Publishing
Page : 802 pages
File Size : 53,9 Mb
Release : 2017-05-25
Category : Technology & Engineering
ISBN : 9780081006528

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Geological Repository Systems for Safe Disposal of Spent Nuclear Fuels and Radioactive Waste by Michael J Apted,Joonhong Ahn Pdf

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

Author : Anonim
Publisher : World Scientific
Page : 1495 pages
File Size : 44,7 Mb
Release : 2020-10-20
Category : Science
ISBN : 9789811223242

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Handbook Of Porous Materials: Synthesis, Properties, Modeling And Key Applications (In 4 Volumes) by Anonim Pdf

This four-volume handbook gives a state-of-the-art overview of porous materials, from synthesis and characterization and simulation all the way to manufacturing and industrial applications. The editors, coming from academia and industry, are known for their didactic skills as well as their technical expertise. Coordinating the efforts of 37 expert authors in 14 chapters, they construct the story of porous carbons, ceramics, zeolites and polymers from varied viewpoints: surface and colloidal science, materials science, chemical engineering, and energy engineering. Volumes 1 and 2 cover the fundamentals of preparation, characterisation, and simulation of porous materials. Working from the fundamentals all the way to the practicalities of industrial production processes, the subjects include hierarchical materials, in situ and operando characterisation using NMR, X-Ray scattering and tomography, state-of-the-art molecular simulations of adsorption and diffusion in crystalline nanoporous materials, as well as the emerging areas of bio-artificing and drug delivery. Volume 3 focuses on porous materials in industrial separation applications, including adsorption separation, membrane separation, and osmotic distillation. Finally, and highly relevant to tomorrow's energy challenges, Volume 4 explains the energy engineering aspects of applying porous materials in supercapacitors, fuel cells, batteries, electrolysers and sub-surface energy applications.The text contains many high-quality colourful illustrations and examples, as well as thousands of up-to-date references to peer-reviewed articles, reports and websites for further reading. This comprehensive and well-written handbook is a must-have reference for universities, research groups and companies working with porous materials.Related Link(s)

Author : Yitian Xiao,Fiona Whitaker,Tianfu Xu
Publisher : John Wiley & Sons
Page : 594 pages
File Size : 53,5 Mb
Release : 2018-06-05
Category : Science
ISBN : 9781119060000

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Reactive Transport Modeling by Yitian Xiao,Fiona Whitaker,Tianfu Xu Pdf

Teaches the application of Reactive Transport Modeling (RTM) for subsurface systems in order to expedite the understanding of the behavior of complex geological systems This book lays out the basic principles and approaches of Reactive Transport Modeling (RTM) for surface and subsurface environments, presenting specific workflows and applications. The techniques discussed are being increasingly commonly used in a wide range of research fields, and the information provided covers fundamental theory, practical issues in running reactive transport models, and how to apply techniques in specific areas. The need for RTM in engineered facilities, such as nuclear waste repositories or CO2 storage sites, is ever increasing, because the prediction of the future evolution of these systems has become a legal obligation. With increasing recognition of the power of these approaches, and their widening adoption, comes responsibility to ensure appropriate application of available tools. This book aims to provide the requisite understanding of key aspects of RTM, and in doing so help identify and thus avoid potential pitfalls. Reactive Transport Modeling covers: the application of RTM for CO2 sequestration and geothermal energy development; reservoir quality prediction; modeling diagenesis; modeling geochemical processes in oil & gas production; modeling gas hydrate production; reactive transport in fractured and porous media; reactive transport studies for nuclear waste disposal; reactive flow modeling in hydrothermal systems; and modeling biogeochemical processes. Key features include: A comprehensive reference for scientists and practitioners entering the area of reactive transport modeling (RTM) Presented by internationally known experts in the field Covers fundamental theory, practical issues in running reactive transport models, and hands-on examples for applying techniques in specific areas Teaches readers to appreciate the power of RTM and to stimulate usage and application Reactive Transport Modeling is written for graduate students and researchers in academia, government laboratories, and industry who are interested in applying reactive transport modeling to the topic of their research. The book will also appeal to geochemists, hydrogeologists, geophysicists, earth scientists, environmental engineers, and environmental chemists.