Natural And Engineered Clay Barriers
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Natural and Engineered Clay Barriers
Author | : Anonim |
Publsiher | : Elsevier |
Total Pages | : 446 |
Release | : 2015-05-14 |
Genre | : Science |
ISBN | : 9780081000502 |
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Clays are used as barriers for the isolation of landfills and contaminated sites. They are envisioned as long-term storage media for hazardous materials and radioactive wastes, and as seals in the case of geological CO2 sequestration or energy storage. Clay properties greatly influence the integrity, efficiency, and safety of these applications. Natural and Engineered Clay Barriers provides a clear view of the fundamental properties of clay materials and how these properties affect their engineering applications. This volume focuses on how the mass transfer properties (hydraulic permeability, gas fluxes, molecular diffusion, semi-permeable membrane properties), geochemical reactivity (adsorption, dissolution) and mechanical properties of clay barriers at the macroscale are influenced by phenomena that occur at clay mineral - water interfaces. Examines clay properties from the molecular to the macroscopic scale Addresses experimental and modeling issues Authored by experts in the properties of clay barriers
Advances in Understanding Engineered Clay Barriers
Author | : Eduardo E. Alonso,Alberto Ledesma |
Publsiher | : CRC Press |
Total Pages | : 616 |
Release | : 2005-06-23 |
Genre | : Technology & Engineering |
ISBN | : 0415365449 |
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The use of clay barriers for waste-isolating purposes has gained increasing attention in the geotechnical engineering community. Practical interest is linked to fundamental research, which includes examination of the behaviour of compacted materials and expansive clays. The interaction between the barrier, waste and the surrounding ground may involve several thermo-hydro-mechanical and chemical-coupled processes that have been analyzed by means of 'in situ' tests, laboratory experiments and numerical modelling. Large-scale field tests have been developed in recent years by European Agencies dealing with the management of radioactive waste. These experiments have provided an opportunity to calibrate and to validate research models and offer benefits in terms of experience of instrumentation and installation techniques. The book includes about sixty papers presented in a symposium held in Spain in 2003. The four main topics of the book are: field emplacement and instrumentation techniques; fundamental research, material behaviour (i.e. bentonite), and laboratory testing; barrier behaviour and THM modelling; and chemical effects, HC and THMC modelling.
Clays in Natural and Engineered Barriers for Radioactive Waste Confinement
Author | : Simon Norris,J. Bruno,Michel Cathelineau,P. Delage,Charles Fairhurst,E. C. Gaucher,E. H. Höhn,A. Kalinichev,P. Lalieux,P. Sellin |
Publsiher | : Unknown |
Total Pages | : 632 |
Release | : 2014 |
Genre | : Clay |
ISBN | : 1523122579 |
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This Special Publication contains 43 scientific studies presented at the 5th conference on 'Clays in natural and engineered barriers for radioactive waste confinement' held in Montpellier, France in 2012. The conference and this resulting volume cover all 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. Special emphasis has been given to the modelling of processes occurring at the mineralogical level within the clay barriers. The papers in this Special Publication consider research into argillaceous media under the following topic areas: large-scale geological characterization; clay-based concept/large-scale experiments; hydrodynamical modelling; geochemistry; geomechanics; mass transfer/gas transfer; mass transfer mechanisms. The collection of different topics presented in this Special Publication demonstrates the diversity of geological repository research.
Containment of High Level Radioactive and Hazardous Solid Wastes with Clay Barriers
Author | : Raymond N. Yong,Roland Pusch,Masashi Nakano |
Publsiher | : CRC Press |
Total Pages | : 498 |
Release | : 2010-05-31 |
Genre | : Technology & Engineering |
ISBN | : 9781482266245 |
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One of the principal objections to or problems with the use of nuclear fuel is that a proven method for safe disposal of spent nuclear fuel has yet to be established. The central focus of most schemes underway to dispose of these high-level radioactive wastes relies on clay-based buffers and barriers to isolate spent fuel canisters in borehole
Reactive Transport in Natural and Engineered Systems
Author | : Jennifer Druhan,Christophe Tournassat |
Publsiher | : Walter de Gruyter GmbH & Co KG |
Total Pages | : 514 |
Release | : 2020-03-04 |
Genre | : Science |
ISBN | : 9781501512001 |
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Open system behavior is predicated on a fundamental relationship between the timescale over which mass is transported and the timescale over which it is chemically transformed. This relationship describes the basis for the multidisciplinary field of reactive transport (RT). In the 20 years since publication of Review in Mineralogy and Geochemistry volume 34: Reactive Transport in Porous Media, RT principles have expanded beyond early applications largely based in contaminant hydrology to become broadly utilized throughout the Earth Sciences. RT is now employed to address a wide variety of natural and engineered systems across diverse spatial and temporal scales, in tandem with advances in computational capability, quantitative imaging and reactive interface characterization techniques. The present volume reviews the diversity of reactive transport applications developed over the past 20 years, ranging from the understanding of basic processes at the nano- to micrometer scale to the prediction of Earth global cycling processes at the watershed scale. Key areas of RT development are highlighted to continue advancing our capabilities to predict mass and energy transfer in natural and engineered systems.
Geoenvironmental Sustainability
Author | : Raymond N. Yong,Catherine N. Mulligan,Masaharu Fukue |
Publsiher | : CRC Press |
Total Pages | : 410 |
Release | : 2006-07-27 |
Genre | : Technology & Engineering |
ISBN | : 9781420004359 |
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Industrialization, urbanization, agriculture, and resource exploitation are activities associated with a developing society. Geoenvironmental Sustainability focuses on such a society's geoenvironment and the natural capital that defines it. The book explains these elements in systematic detail, particularly with respect to their relationship to fiv
Reactive Transport Modeling
Author | : Yitian Xiao,Fiona Whitaker,Tianfu Xu |
Publsiher | : John Wiley & Sons |
Total Pages | : 560 |
Release | : 2018-03-14 |
Genre | : Science |
ISBN | : 9781119060024 |
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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.
Radioactive Waste Confinement
Author | : S. Norris,J. Bruno,M. Van Geet ,E. Verhoef |
Publsiher | : Geological Society of London |
Total Pages | : 366 |
Release | : 2017-05-04 |
Genre | : Science |
ISBN | : 9781786202734 |
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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.