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One of the challenges facing the continued availability of nuclear energy is that of ensuring the safe, environmentally acceptable and economic management of the waste generated during its production. There is a broad scientific and technical consensus that disposal of high-level, long-lived radioactive waste in deep geologic formations is an appropriate and safe means of isolating it from the biosphere for very long time scales. There have, however, been setbacks in the disposal programmes in many countries, primarily due to the failure of the waste management community to win sufficient public and political support. This report, which is based on recent work of the OECD Nuclear Energy Agency (NEA), reviews the progress to date in this field and the further steps that may be required to implement geologic disposal, taking into account both the technical and regulatory requirements, and the need to achieve an appropriate level of societal acceptance.This book should be of interest to government and industry decision makers, academics and all those eager to better understand what is at stake in this widely debated subject and the prospects that emerge.

Radioactive waste disposal in the ground. --- Radioactive wastes -- Management. --- Radioactive wastes. --- Radioactive waste disposal in the ground --- Civil & Environmental Engineering --- Engineering & Applied Sciences --- Environmental Engineering --- Burial of radioactive wastes --- Ground radioactive waste disposal --- Underground radioactive waste disposal --- Hazardous waste sites --- Waste disposal in the ground --- Radioactive waste repositories --- Déchets radioactifs --- Elimination dans le sol

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The definition of the chemical and isotopic composition of the groundwater present in argillaceous formations, which are considered as potential host rocks for radioactive waste disposal, is crucial for establishing their barrier properties. Therefore, a critical review of the relevant literature on the current methods applied to extract water and solutes and on the various approaches to the interpretation of their results was commissioned to the Laboratoire d’hydrologie et de géochimie isotopique (Université de Paris-Sud, France). The present document provides a synthesis of available extraction methods, assesses their respective advantages and limitations, identifies key processes that may influence the composition of the extracted water, describes modelling approaches that are used to determine in situ porewater composition, and highlights, wherever possible, some of the unresolved issues and recommendations on ways to address them.

Analytical geochemistry. --- Radioactive waste disposal in the ground. --- Rocks -- Analysis. --- Radioactive waste disposal in the ground --- Rocks --- Analytical geochemistry --- Environmental Engineering --- Civil & Environmental Engineering --- Engineering & Applied Sciences --- Analysis --- Analytic geochemistry --- Geochemical analysis --- Geochemistry, Analytic --- Burial of radioactive wastes --- Ground radioactive waste disposal --- Underground radioactive waste disposal --- Chemistry, Analytic --- Geochemistry --- Petrology --- Stone --- Hazardous waste sites --- Waste disposal in the ground --- Radioactive waste repositories --- Analysis. --- Analytical chemistry --- Déchets radioactifs --- Roches --- Géochimie analytique --- Elimination dans le sol --- Analyse

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Many countries are currently exploring the option to dispose of highly radioactive solid wastes deep underground in purpose built, engineered repositories. A number of surface and shallow repositories for less radioactive wastes are already in operation. One of the challenges facing the nuclear industry is to demonstrate confidently that a repository will contain wastes for so long that any releases that might take place in the future will pose no significant health or environmental risk. One method for building confidence in the long-term future safety of a repository is to l

Radioactive pollution of soils --- Radioactive waste disposal in the ground --- #Hist.Geol --- Burial of radioactive wastes --- Ground radioactive waste disposal --- Underground radioactive waste disposal --- Hazardous waste sites --- Waste disposal in the ground --- Radioactive waste repositories --- Radioactive contamination of soils --- Radioactive fallout --- Soil pollution --- Radioactive substances in soils --- Monograph --- WASTE MANAGEMENT --- Radioactive wastes. --- RADIOACTIVE WASTES --- Geological Disposal --- Radioactive waste disposal. --- Nuclear waste disposal --- Nuclear engineering --- Radioactivity --- Refuse and refuse disposal --- Radioactive pollution --- Nuclear wastes --- Radwastes --- Wastes, Nuclear --- Wastes, Radioactive --- Hazardous wastes --- Radioactive substances --- Safety measures --- Radioactive pollution of soils. --- Radioactive waste disposal in the ground. --- Radioactive waste disposal in the ground. Radioactive pollution of soils--Case studies. --- Environmental Engineering --- Civil & Environmental Engineering --- Engineering & Applied Sciences