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Download or read book High Ionic-strength Subsurface Chemistry of Actinides written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Donald T. Reed
Publisher : Springer Science & Business Media
ISBN 13 : 1441986901
Total Pages : 267 pages
Book Rating : 4.4/5 (419 download)
Download or read book Actinide Speciation in High Ionic Strength Media written by Donald T. Reed and published by Springer Science & Business Media. This book was released on 2012-09-21 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt: The management and disposal of radioactive wastes are key international issues requiring a sound, fundamental scientific basis to insure public and environmental protection. Large quantities of existing nuclear waste must be treated to encapsulate the radioactivity in a form suitable for disposal. The treatment of this waste, due to its extreme diversity, presents tremendous engineering and scientific challenges. Geologic isolation of transuranic waste is the approach currently proposed by all nuclear countries for its final disposal. To be successful in this endeavor, it is necessary to understand the behavior of plutonium and the other actinides in relevant environmental media. Conceptual models for stored high level waste and waste repository systems present many sCientific difficulties due to their complexity and non-ideality. For example, much of the high level nuclear waste in the US is stored as alkaline concentrated electrolyte materials, where the chemistry of the actinides under such conditions is not well understood. This lack of understanding limits the successful separation and treatment of these wastes. Also, countries such as the US and Germany plan to dispose of actinide bearing wastes in geologic salt deposits. In this case, understanding the speciation and transport properties of actinides in brines is critical for confidence in repository performance and risk assessment activities. Many deep groundwaters underlying existing contaminated sites are also high in ionic strength. Until recently, the scientific basis for describing actinide chemistry in such systems was extremely limited.
Author : Donald Eugene Wall
Publisher :
ISBN 13 :
Total Pages : 172 pages
Book Rating : 4.:/5 (39 download)
Download or read book Separation of Actinides in High Ionic Strength Solution by Solvent Extraction written by Donald Eugene Wall and published by . This book was released on 1997 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemistry of Transuranium Elements in Salt-base Repository written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The mobility and potential release of actinides into the accessible environment continues to be the key performance assessment concern of nuclear repositories. Actinide, in particular plutonium speciation under the wide range of conditions that can exist in the subsurface is complex and depends strongly on the coupled effects of redox conditions, inorganic/organic complexation, and the extent/nature of aggregation. Understanding the key factors that define the potential for actinide migration is, in this context, an essential and critical part of making and sustaining a licensing case for a nuclear repository. Herein we report on recent progress in a concurrent modeling and experimental study to determine the speciation of plutonium, uranium and americium in high ionic strength Na-CI-Mg brines. This is being done as part of the ongomg recertification effort m the Waste Isolation Pilot Plant (WIPP). The oxidation-state specific solubility of actinides were established in brine as function of pC{sub H+}, brine composition and the presence and absence of organic chelating agents and carbonate. An oxidation-state invariant analog approach using Nd{sup 3+} and Th{sup 4+} was used for An{sup 3+} and An{sup 4+} respectively. These results show that organic ligands and hydrolysis are key factors for An(III) solubility, hydrolysis at pC{sub H+} above 8 is predominate for An(IV) and carbonates are the key factor for U(VI) solubility. The effect of high ionic strength and brine components measured in absence of carbonates leads to measurable increased in overall solubility over analogous low ionic strength groundwater. Less is known about the bioreduction of actinides by halo-tolerant microorganisms, but there is now evidence that bioreduction does occur and is analogous, in many ways, to what occurs with soil bacteria. Results of solubility studies that focus on Pitzer parameter corrections, new species (e.g. borate complexation), and the thermodynamic parameters for modeling are discussed.
Author : Marcus Altmaier
Publisher : KIT Scientific Publishing
ISBN 13 : 3866447566
Total Pages : 308 pages
Book Rating : 4.8/5 (664 download)
Download or read book 3rd Annual Workshop Proceedings of the Collaborative Project "Redox Phenomena Controlling Systems" (7th EC FP CP RECOSY) (KIT Scientific Reports ; 7603) written by Marcus Altmaier and published by KIT Scientific Publishing. This book was released on 2011 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Norman M. Edelstein
Publisher : Springer
ISBN 13 : 9789401777315
Total Pages : 1029 pages
Book Rating : 4.7/5 (773 download)
Download or read book The Chemistry of the Actinide and Transactinide Elements written by Norman M. Edelstein and published by Springer. This book was released on 2016-10-25 with total page 1029 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is a continuation of the five volumes of "The Chemistry of the Actinide and Transactinide Elements" (published 2006). It expounds on topics in actinide science that are undergoing rapid scientific developments and that are germane to the safe development of nuclear energy in the 21st century, from nuclear fuels to the environmental science and management of waste. The scope of Volume 6 encompasses: actinides in the geosphere, subsurface interactions of actinides species with microorganisms, chemistry of nuclear fuels, actinide waste forms and radiation effects, analytical chemistry of plutonium, actinide chalcogenide compounds, molecular spectroscopy and reaction of the actinide ions in the gas phase and rare gas matrices, and hydrothermal synthesis of actinide compounds. This volume is written by active practitioners and recognized experts in their specialty areas. Each of the topics represents the current state of knowledge in this fascinating area of science and technology.
Author : Stepan N. Kalmykov
Publisher : Springer Science & Business Media
ISBN 13 : 3642114326
Total Pages : 448 pages
Book Rating : 4.6/5 (421 download)
Download or read book Actinide Nanoparticle Research written by Stepan N. Kalmykov and published by Springer Science & Business Media. This book was released on 2011-06-17 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first book to cover actinide nano research. It is of interest both for fundamental research into the chemistry and physics of f-block elements as well as for applied researchers such as those studying the long-term safety of nuclear waste disposal and developing remediation strategies. The authors cover important issues of the formation of actinide nano-particles, their properties and structure, environmental behavior of colloids and nanoparticles related to the safe disposal of nuclear wastes, modeling and advanced methods of characterization at the nano-scale.
Author : B. Sherwood Lollar
Publisher : Elsevier
ISBN 13 : 9780080446431
Total Pages : 652 pages
Book Rating : 4.4/5 (464 download)
Download or read book Environmental Geochemistry written by B. Sherwood Lollar and published by Elsevier. This book was released on 2005-05-21 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Treatise on Geochemistry is the first work providing a comprehensive, integrated summary of the present state of geochemistry. It deals with all the major subjects in the field, ranging from the chemistry of the solar system to environmental geochemistry. The Treatise on Geochemistry has drawn on the expertise of outstanding scientists throughout the world, creating the reference work in geochemistry for the next decade. Each volume consists of fifteen to twenty-five chapters written by recognized authorities in their fields, and chosen by the Volume Editors in consultation with the Executive Editors. Particular emphasis has been placed on integrating the subject matter of the individual chapters and volumes. Elsevier also offers the Treatise on Geochemistry in electronic format via the online platform ScienceDirect, the most comprehensive database of academic research on the Internet today, enhanced by a suite of sophisticated linking, searching and retrieval tools.
Author : Marcus Altmaier
Publisher : KIT Scientific Publishing
ISBN 13 : 3866449216
Total Pages : 408 pages
Book Rating : 4.8/5 (664 download)
Download or read book 4th Annual Workshop Proceedings of the Collaborative Project "Redox Phenomena Controlling Systems" (7th EC FP CP RECOSY) (KIT Scientific Reports ; 7626) written by Marcus Altmaier and published by KIT Scientific Publishing. This book was released on 2012 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Pan Ming Huang
Publisher : John Wiley & Sons
ISBN 13 : 9780471607908
Total Pages : 592 pages
Book Rating : 4.6/5 (79 download)
Download or read book Interactions between Soil Particles and Microorganisms written by Pan Ming Huang and published by John Wiley & Sons. This book was released on 2002-03-12 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wechselwirkungen von Mineralien, organischen Verbindungen und Mikroorganismen im Boden: Dieses Handbuch wertet aktuelle Forschungsergebnisse auf diesem Gebiet kritisch aus und erläutert die Bedeutung der Zusammenhänge für Ökosysteme. Ein besonderer Schwerpunkt bildet die Wechselbeziehung zwischen Schadstoffen im Boden und Populationen von Mikroorganismen.
Author : Heinrich D Holland
Publisher : Academic Press
ISBN 13 : 0123813921
Total Pages : 681 pages
Book Rating : 4.1/5 (238 download)
Download or read book Readings from the Treatise on Geochemistry written by Heinrich D Holland and published by Academic Press. This book was released on 2010-05-25 with total page 681 pages. Available in PDF, EPUB and Kindle. Book excerpt: Readings from the Treatise on Geochemistry offers an interdisciplinary reference for scientists, researchers and upper undergraduate and graduate level geochemistry students that is more affordable than the full Treatise. For professionals, this volume will provide an overview of the field as a whole. For students, it will provide more in-depth introductory content than is found in broad-based geochemistry textbooks. Articles were selected from chapters across all volumes of the full Treatise, and include: The Origin and Earliest History of the Earth, Compositional Evolution of the Mantle, Evolution of Sedimentary Rocks, Soil Formation, Geochemistry of Groundwater, Geologic History of Seawater, Hydrothermal Processes, and Biogeochemistry of Primary Production in the Sea. Comprehensive, interdisciplinary and authoritative content selected by leading subject experts Robust illustrations, figures and tables Affordably priced sampling of content from the full Treatise on Geochemistry
Author :
Publisher :
ISBN 13 :
Total Pages : 556 pages
Book Rating : 4.X/5 (2 download)
Download or read book Radioactive Waste Management written by and published by . This book was released on 1981 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Natuschka M. Lee
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 3110424363
Total Pages : 424 pages
Book Rating : 4.1/5 (14 download)
Download or read book Biotechnological Applications of Extremophilic Microorganisms written by Natuschka M. Lee and published by Walter de Gruyter GmbH & Co KG. This book was released on 2020-10-26 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a broad overview how extremophiles can be used in biotechnology, including for the production and degradation of compounds. It reviews various recent discoveries and applications related to a large variety of extremophiles, considering both prokaryotes as well as eukaryotes.
Author :
Publisher :
ISBN 13 :
Total Pages : 794 pages
Book Rating : 4.3/5 (91 download)
Download or read book INIS Atomindex written by and published by . This book was released on 1996 with total page 794 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Everett Jenne
Publisher : Elsevier
ISBN 13 : 008049868X
Total Pages : 611 pages
Book Rating : 4.0/5 (84 download)
Download or read book Adsorption of Metals by Geomedia written by Everett Jenne and published by Elsevier. This book was released on 1998-04-28 with total page 611 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adsorption of Metals by Geomedia, serves as a needed resource for this topic which has received much attention during the past 15 years. The book provides an in-depth review of the field, followed by numerouschapters that document the current status of adsorption research for a variety of metals by geomedia ranging from individual minerals to sediments and soils. Adsorption mechanisms are detailed and precipitation is presented as a distinct sorption process.Virtually all factors affecting the extent of metal adsorption are examined, including the effects of selected anions, competition among metals, pH, metal concentration, loading, variable metal adsorption capacity, ionic strength, hydrogen exchange and stoichiometry, and solids concentration. A variety of adsorption models are briefly presented and some are used to extend laboratory studies to field sites. The book is comprised of a collection of papers contributed by leading investigators from Canada, France, the Netherlands, the United Kingdom and the US. Includes a wide-ranging review of the status of adsorption research and a prospectus on future research Details all known factors affecting the extent of adsorption Covers basic adsorption equations and interrelationships Clearly documents experimental procedures Presents adsorption data for eleven metals and three other elements Uses normalization to greatly reduce apparent variability among absorbents Provides extensive literature citations and a comprehensive index
Author : U.S. Nuclear Regulatory Commission
Publisher :
ISBN 13 :
Total Pages : 908 pages
Book Rating : 4.3/5 (91 download)
Download or read book Radioactive Waste Processing and Disposal written by U.S. Nuclear Regulatory Commission and published by . This book was released on 1980 with total page 908 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : R. Gieré
Publisher : Geological Society of London
ISBN 13 : 9781862391673
Total Pages : 694 pages
Book Rating : 4.3/5 (916 download)
Download or read book Energy, Waste and the Environment written by R. Gieré and published by Geological Society of London. This book was released on 2004 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides incentives for further development of sustainable fuel cycles through a novel and interdisciplinary approach to an Earth science-related topic. The main focus is on geochemical concepts in immobilizing, isolating or neutralizing waste derived from energy production and consumption. The book also addresses the issue of using some types of energy-derived waste as alternative raw materials. Moreover, it highlights research on how certain wastes can be used for energy production, an increasingly important aspect of modern integrated waste management strategies. The main objectives are to: (a) identify the most serious environmental problems related to various types of power generation and associated waste accumulation; (b) present strategies, based on natural analogue materials, for the immobilization of toxic and radioactive waste components through mineralogical barriers; (c) discuss modern procedures for reuse of waste or certain waste components; and (d) review the importance of geochemical modelling in describing and predicting the interaction between waste and the environment.
