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Geochemistry And Radionuclide Migration
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Book Synopsis Geochemistry and Radionuclide Migration by :
Download or read book Geochemistry and Radionuclide Migration written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Theoretically, the geochemical barrier can provide a major line of defense in protecting the biosphere from the hazards of nuclear waste. The most likely processes involved are easily identified. Preliminary investigations using computer modeling techniques suggest that retardation is an effective control on radionuclide concentrations. Ion exchange reactions slow radionuclide migration and allow more time for radioactive decay and dispersion. For some radionuclides, solubility alone may limit concentrations to less than the maximum permissible now considered acceptable by the Federal Government. The effectiveness of the geochemical barrier is ultimately related to the repository site characteristics. Theory alone tells us that geochemical controls will be most efficient in an environment that provides for maximum ion exchange and the precipitation of insoluble compounds. In site selection, consideration should be given to rock barriers with high ion exchange capacity that might also act as semi-permeable membranes. Also important in evaluating the site's potential for effective geochemical controls are the oxidation potentials, pH and salinity of the groundwater.
Book Synopsis Geochemistry of Radionuclides with Long Half-Lives by : B Skytte Jensen
Download or read book Geochemistry of Radionuclides with Long Half-Lives written by B Skytte Jensen and published by . This book was released on 1980 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Radionuclide Migration/retardation by : Judith B. Moody
Download or read book Radionuclide Migration/retardation written by Judith B. Moody and published by . This book was released on 1982 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Geochemistry Studies Pertaining to the G-Tunnel Radionuclide Migration Field Experiment by :
Download or read book Geochemistry Studies Pertaining to the G-Tunnel Radionuclide Migration Field Experiment written by and published by . This book was released on 1982 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Geochemistry written by Titayeva and published by CRC Press. This book was released on 1994-06-23 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nuclear Geochemistry discusses the differentiation of genesis radionuclides including cosmogenic, antropogenic, and initial natural radionuclides. The book focuses on geochemistry of the radionuclides and their use in tracing geological processes such as crust-mantle interaction, exogenic processes, natural and antropogenic radiation environment, the nuclear environment, geochronology, thermal regime of the earth, rock mineral and mineral deposits genesis, and the radiometric prospecting mineral deposits. The book will benefit geochemists, geologists, and ecologists.
Book Synopsis ʻAin al-ʻilm by : Luṭf-Allāh an-Nasafī al-Fāḍil al- Kaidānī
Download or read book ʻAin al-ʻilm written by Luṭf-Allāh an-Nasafī al-Fāḍil al- Kaidānī and published by . This book was released on 1874 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Research on Radionuclide Migration Under Subsurface Geochemical Conditions by :
Download or read book Research on Radionuclide Migration Under Subsurface Geochemical Conditions written by and published by . This book was released on 1998 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Statistical Patterns of Geochemistry in Crystalline Rock and Effect of Sorption Kinetics on Radionuclide Migration by : Shulan Xu
Download or read book Statistical Patterns of Geochemistry in Crystalline Rock and Effect of Sorption Kinetics on Radionuclide Migration written by Shulan Xu and published by . This book was released on 1998 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Radionuclide Migration Project by : Lawrence Livermore National Laboratory
Download or read book Radionuclide Migration Project written by Lawrence Livermore National Laboratory and published by . This book was released on 1985 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydrogeochemical Processes Affecting the Migration of Radionuclides in a Fluvial Sand Aquifer at the Chalk River Nuclear Laboratories by : Richard E. Jackson
Download or read book Hydrogeochemical Processes Affecting the Migration of Radionuclides in a Fluvial Sand Aquifer at the Chalk River Nuclear Laboratories written by Richard E. Jackson and published by . This book was released on 1980 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The fate of radioactive wastes in the environment has received scientific attention for at least 25 years; in the 1970s, however, it has become a major issue in the public debate on the environmental impacts of nuclear power"--Introduction, page 1.
Book Synopsis Research on Radionuclide Migration Under Subsurface Geochemical Conditions - JAERI by : Nihon Genshiryoku Kenkyūjo
Download or read book Research on Radionuclide Migration Under Subsurface Geochemical Conditions - JAERI written by Nihon Genshiryoku Kenkyūjo and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Understanding the Interplay of Increased Pressure, Residual Heat and Geologic and Geochemical Environment on Radionuclide Migration from Underground Nuclear Tests by :
Download or read book Understanding the Interplay of Increased Pressure, Residual Heat and Geologic and Geochemical Environment on Radionuclide Migration from Underground Nuclear Tests written by and published by . This book was released on 2008 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding the processes that govern migration of radionuclides from underground nuclear tests is a problem of interest in many places in the world. Whether to gain understanding in the risks to human health, to guide water resources management decisions or as a surrogate for nuclear repository safety, there are a number of complex, coupled processes governing fate and form of radionuclides in the subsurface that need to be understood. These processes include the increased pore water pressure that is present after some underground nuclear tests, the residual heat signature from the nuclear detonation and the natural (i.e. pre-test) and altered (i.e. post-test) hydrogeologic and geochemical setting. We will focus on tests in saturated and unsaturated environments in Yucca Flat at the US Nevada Test Site. These tests all encompass a range of the aforementioned process interactions and provide insight into the broader context of understanding radionuclide migration from underground nuclear tests over a range of scale and environment.
Book Synopsis Biosphere Implications Of Deep Disposal Of Nuclear Waste: The Upwards Migration Of Radionuclides In Vegetated Soils by : Howard S Wheater
Download or read book Biosphere Implications Of Deep Disposal Of Nuclear Waste: The Upwards Migration Of Radionuclides In Vegetated Soils written by Howard S Wheater and published by World Scientific. This book was released on 2007-07-26 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt: The safety assessment of a deep repository for nuclear waste poses challenging scientific and technical questions. The risks from leakage of radionuclides from the repository, including transfers to the biosphere and the food chain must be assessed. This involves complex and poorly understood interactions between groundwater, soils, plants and the atmosphere. A unique, multidisciplinary experimental and modeling program at Imperial College London has been funded by UK NIREX to develop the science and to produce modeling tools to interpret and generalize the experimental data for safety assessment. This monograph brings together for the first time the accumulated results and experience from almost two decades of research. The results have important implications for the safety assessment of nuclear waste worldwide and provide new insights into the geochemical and biological controls on the upwards migration of radiochemicals in the near-surface environment./a
Book Synopsis In Situ radionuclide migration studies in a shallow sand aquifer by : G. M. Williams
Download or read book In Situ radionuclide migration studies in a shallow sand aquifer written by G. M. Williams and published by . This book was released on 1985 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Geochemistry of Soil Radionuclides by : Pengchu Zhang
Download or read book Geochemistry of Soil Radionuclides written by Pengchu Zhang and published by . This book was released on 2002 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Radionuclides in the Environment by : Clemens Walther
Download or read book Radionuclides in the Environment written by Clemens Walther and published by Springer. This book was released on 2015-10-30 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides extensive and comprehensive information to researchers and academicians who are interested in radionuclide contamination, its sources and environmental impact. It is also useful for graduate and undergraduate students specializing in radioactive-waste disposal and its impact on natural as well as manmade environments. A number of sites are affected by large legacies of waste from the mining and processing of radioactive minerals. Over recent decades, several hundred radioactive isotopes (radioisotopes) of natural elements have been produced artificially, including 90Sr, 137Cs and 131I. Several other anthropogenic radioactive elements have also been produced in large quantities, for example technetium, neptunium, plutonium and americium, although plutonium does occur naturally in trace amounts in uranium ores. The deposition of radionuclides on vegetation and soil, as well as the uptake from polluted aquifers (root uptake or irrigation) are the initial point for their transfer into the terrestrial environment and into food chains. There are two principal deposition processes for the removal of pollutants from the atmosphere: dry deposition is the direct transfer through absorption of gases and particles by natural surfaces, such as vegetation, whereas showery or wet deposition is the transport of a substance from the atmosphere to the ground by snow, hail or rain. Once deposited on any vegetation, radionuclides are removed from plants by the airstre am and rain, either through percolation or by cuticular scratch. The increase in biomass during plant growth does not cause a loss of activity, but it does lead to a decrease in activity concentration due to effective dilution. There is also systemic transport (translocation) of radionuclides within the plant subsequent to foliar uptake, leading the transfer of chemical components to other parts of the plant that have not been contaminated directly.
Book Synopsis Migration Phenomena of Radionuclides Into the Geosphere by : Bror Skytte Jensen
Download or read book Migration Phenomena of Radionuclides Into the Geosphere written by Bror Skytte Jensen and published by CRC Press. This book was released on 1982 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
