Disposition of Actinides Released from High-level Waste Glass

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Publisher :
ISBN 13 :
Total Pages : 11 pages
Book Rating : 4.:/5 (683 download)

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Book Synopsis Disposition of Actinides Released from High-level Waste Glass by :

Download or read book Disposition of Actinides Released from High-level Waste Glass written by and published by . This book was released on 1994 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: A series of static leach tests was conducted using glasses developed for vitrifying tank wastes at the Savannah River Site to monitor the disposition of actinide elements upon corrosion of the glasses. In these tests, glasses produced from SRL 131 and SRL 202 frits were corroded at 90°C in a tuff groundwater. Tests were conducted using crushed glass at different glass surface area-to-solution volume (S/V) ratios to assess the effect of the S/V on the solution chemistry, the corrosion of the glass, and the disposition of actinide elements. Observations regarding the effects of the S/V on the solution chemistry and the corrosion of the glass matrix have been reported previously. This paper highlights the solution analyses performed to assess how the S/V used in a static leach test affects the disposition of actinide elements between fractions that are suspended or dissolved in the solution, and retained by the altered glass or other materials.

Glass as a Waste Form and Vitrification Technology

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Publisher : National Academies Press
ISBN 13 : 0309056829
Total Pages : 172 pages
Book Rating : 4.3/5 (9 download)

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Book Synopsis Glass as a Waste Form and Vitrification Technology by : National Research Council

Download or read book Glass as a Waste Form and Vitrification Technology written by National Research Council and published by National Academies Press. This book was released on 1997-03-02 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Actinides and the Environment

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Publisher : Springer Science & Business Media
ISBN 13 : 9780792349686
Total Pages : 504 pages
Book Rating : 4.3/5 (496 download)

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Book Synopsis Actinides and the Environment by : P.A. Sterne

Download or read book Actinides and the Environment written by P.A. Sterne and published by Springer Science & Business Media. This book was released on 1998-02-28 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: The handling of actinides and actinide-based materials provides significant technological challenges due to the toxicity and radioactivity associated with these materials. These challenges are particularly apparent in the nuclear power industry. Under normal operation, a reactor can produce a significant amount of spent fuel requiring subsequent containment for geologic times, and under accident conditions it can release lethal doses of radioactive material to the environment. Inevitably, radioactive material will enter the environment, necessitating as complete an understanding as possible of its behavior. An understanding of the interaction between actinides and the environment must be based on a knowledge of their basic physical and chemical properties. To date, although there is general agreement on the principles for waste disposal, no facility has been built for the long term disposal of high level radioactive waste from either normal reactor operations or from accidental catastrophes. This makes it most important for the scientific and technical community to develop the necessary cross-disciplinary understanding that will help us implement safe and secure waste management, accident remediation and accident prevention systems.

Yucca Mountain Site Characterization Project Bibliography, 1994-1995

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Publisher :
ISBN 13 :
Total Pages : 456 pages
Book Rating : 4.:/5 (359 download)

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Book Synopsis Yucca Mountain Site Characterization Project Bibliography, 1994-1995 by :

Download or read book Yucca Mountain Site Characterization Project Bibliography, 1994-1995 written by and published by . This book was released on 1996 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Storage and Disposal of Radioactive Waste as Glass in Canisters

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Publisher :
ISBN 13 :
Total Pages : 104 pages
Book Rating : 4.:/5 (359 download)

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Book Synopsis The Storage and Disposal of Radioactive Waste as Glass in Canisters by : J. E. Mendel

Download or read book The Storage and Disposal of Radioactive Waste as Glass in Canisters written by J. E. Mendel and published by . This book was released on 1978 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Radioactive Waste Management

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Publisher :
ISBN 13 :
Total Pages : 726 pages
Book Rating : 4.X/5 (2 download)

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Book Synopsis Radioactive Waste Management by :

Download or read book Radioactive Waste Management written by and published by . This book was released on 1981 with total page 726 pages. Available in PDF, EPUB and Kindle. Book excerpt:

High-temperature Leaching of an Actinide-bearing, Simulated High-level Waste Glass

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Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (873 download)

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Book Synopsis High-temperature Leaching of an Actinide-bearing, Simulated High-level Waste Glass by :

Download or read book High-temperature Leaching of an Actinide-bearing, Simulated High-level Waste Glass written by and published by . This book was released on 1983 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The chemical durability of a simulated high-level waste glass when exposed to high-temperature geologic solutions was investigated. In this study, simulated high-level waste glass-beads (76 to 68 glass)l doped with technetium, uranium, neptunium, plutonium, curium and americium were leached in deionized water, Waste Isolation Pilot Plant salt brine B, and 0.03M sodium bicarbonate solution at 150 and 250°C for 2, 4, 8, 16, and 32 days. The resulting solutions were analyzed for several nonradioactive glass components and for the radioactive dopants. The glass exhibited incongruent leaching behavior, i.e., the normalized releases (g-glass/m2) based on the different elements spanned four orders of magnitude. Normalized releases based on boron, molybdenum, sodium, cesium, silicon, and technetium were the same within a factor of three. Most of the nonradioactive components of the glass were released more to the salt brine than to the other two solutions. However, silicon, boron, molybdenum, technetium, and the actinides had their lowest releases in the salt brine. Reaction-layer thickness on the glass surface and weight losses of the glass beads were also smallest in the brine solution. Actinide releases were highest in the sodium bicarbonate solution. Calcium, strontium and barium releases decreased with time and temperature; the releases of most other elements increased with time and temperature. Solubility appears to be limiting the release of most elements. The leachate pH is controlled by chemical species within the original leachant and by species released as the glass leached. Carbonate ion complexes with some elements including uranium, effectively increasing their release. The more soluble elements including sodium, boron, molybdenum and technetium provide an indication of the actual rate of reaction between the glass and water.

Disposition of High-Level Radioactive Waste Through Geological Isolation

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Publisher : National Academies Press
ISBN 13 : 0309184584
Total Pages : 42 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Disposition of High-Level Radioactive Waste Through Geological Isolation by : National Research Council

Download or read book Disposition of High-Level Radioactive Waste Through Geological Isolation written by National Research Council and published by National Academies Press. This book was released on 1999-10-07 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the next several years, decisions are expected to be made in several countries on the further development and implementation of the geological disposition option. The Board on Radioactive Waste Management (BRWM) of the U.S. National Academies believes that informed and reasoned discussion of relevant scientific, engineering and social issues can-and should-play a constructive role in the decision process by providing information to decision makers on relevant technical and policy issues. A BRWM-initiated project including a workshop at Irvine, California on November 4-5, 1999, and subsequent National Academies' report to be published in spring, 2000, are intended to provide such information to national policy makers both in the U.S. and abroad. To inform national policies, it is essential that experts from the physical, geological, and engineering sciences, and experts from the policy and social science communities work together. Some national programs have involved social science and policy experts from the beginning, while other programs have only recently recognized the importance of this collaboration. An important goal of the November workshop is to facilitate dialogue between these communities, as well as to encourage the sharing of experiences from many national programs. The workshop steering committee has prepared this discussion for participants at the workshop. It should elicit critical comments and help identify topics requiring in-depth discussion at the workshop. It is not intended as a statement of findings, conclusions, or recommendations. It is rather intended as a vehicle for stimulating dialogue among the workshop participants. Out of that dialogue will emerge the findings, conclusions, and recommendations of the National Academies' report.

Conceptual Waste Package Interim Product Specifications and Data Requirements for Disposal of Glass Commercial High-level Waste Forms in Salt Geologic Repositories

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Publisher :
ISBN 13 :
Total Pages : 56 pages
Book Rating : 4.3/5 ( download)

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Book Synopsis Conceptual Waste Package Interim Product Specifications and Data Requirements for Disposal of Glass Commercial High-level Waste Forms in Salt Geologic Repositories by :

Download or read book Conceptual Waste Package Interim Product Specifications and Data Requirements for Disposal of Glass Commercial High-level Waste Forms in Salt Geologic Repositories written by and published by . This book was released on 1983 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

High-temperature Leaching of an Actinide-bearing, Simulated High-level Waste Glass

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Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (585 download)

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Book Synopsis High-temperature Leaching of an Actinide-bearing, Simulated High-level Waste Glass by : Joseph H. Westsik (Jr.)

Download or read book High-temperature Leaching of an Actinide-bearing, Simulated High-level Waste Glass written by Joseph H. Westsik (Jr.) and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

New Developments in Glassy Nuclear Wasteforms

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Publisher : Nova Publishers
ISBN 13 : 9781600217838
Total Pages : 152 pages
Book Rating : 4.2/5 (178 download)

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Book Synopsis New Developments in Glassy Nuclear Wasteforms by : Michael I. Ojovan

Download or read book New Developments in Glassy Nuclear Wasteforms written by Michael I. Ojovan and published by Nova Publishers. This book was released on 2007 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on the authors' recent investigations, this book describes the application of glassy and polyphase composite materials for nuclear waste immobilisation. It introduces immobilisation issues beginning with a short description of nuclear waste types and compositions. Sources of nuclear waste are described including the nuclear fuel cycle, operational and spent nuclear fuel reprocessing waste streams. The glassy waste forms currently being used for high-, intermediate- and low level radioactive waste immobilisation are described. Problems related to immobilisation capacity, process efficiency and long-term radionucleide retention are highlighted. Scientific and technical problems in nuclear waste immobilisation are emphasised in particular long-term waste form stability and durability. Recent developments in advanced nuclear waste forms are described such as glass composite materials (GCM) with higher versatility and waste loading. New immobilisation approaches and technologies are described including advanced cold crucible induction melting (CCM), self sustaining thermochemical immobilisation (SSI), and in-situ self-sintering in deep underground repositories. Long-term durability tests of nuclear waste glasses are outlined and the role of ion-exchange phase in glass corrosion is described in detail.

Cementitious Materials for Nuclear Waste Immobilization

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Publisher : John Wiley & Sons
ISBN 13 : 1118512006
Total Pages : 245 pages
Book Rating : 4.1/5 (185 download)

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Book Synopsis Cementitious Materials for Nuclear Waste Immobilization by : Rehab O. Abdel Rahman

Download or read book Cementitious Materials for Nuclear Waste Immobilization written by Rehab O. Abdel Rahman and published by John Wiley & Sons. This book was released on 2014-11-17 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cementitious materials are an essential part in any radioactive waste disposal facility. Conditioning processes such as cementation are used to convert waste into a stable solid form that is insoluble and will prevent dispersion to the surrounding environment. It is incredibly important to understand the long-term behavior of these materials. This book summarises approaches and current practices in use of cementitious materials for nuclear waste immobilisation. It gives a unique description of the most important aspects of cements as nuclear waste forms: starting with a description of wastes, analyzing the cementitious systems used for immobilization and describing the technologies used, and ending with analysis of cementitious waste forms and their long term behavior in an envisaged disposal environment. Extensive research has been devoted to study the feasibility of using cement or cement based materials in immobilizing and solidifying different radioactive wastes. However, these research results are scattered. This work provides the reader with both the science and technology of the immobilization process, and the cementitious materials used to immobilize nuclear waste. It summarizes current knowledge in the field, and highlights important areas that need more investigation. The chapters include: Introduction, Portland cement, Alternative cements, Cement characterization and testing, Radioactive waste cementation, Waste cementation technology, Cementitious wasteform durability and performance assessment.

Nuclear Wastes

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Publisher : National Academies Press
ISBN 13 : 0309052262
Total Pages : 590 pages
Book Rating : 4.3/5 (9 download)

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Book Synopsis Nuclear Wastes by : National Research Council

Download or read book Nuclear Wastes written by National Research Council and published by National Academies Press. This book was released on 1996-02-23 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt: Disposal of radioactive waste from nuclear weapons production and power generation has caused public outcry and political consternation. Nuclear Wastes presents a critical review of some waste management and disposal alternatives to the current national policy of direct disposal of light water reactor spent fuel. The book offers clearcut conclusions for what the nation should do today and what solutions should be explored for tomorrow. The committee examines the currently used "once-through" fuel cycle versus different alternatives of separations and transmutation technology systems, by which hazardous radionuclides are converted to nuclides that are either stable or radioactive with short half-lives. The volume provides detailed findings and conclusions about the status and feasibility of plutonium extraction and more advanced separations technologies, as well as three principal transmutation concepts for commercial reactor spent fuel. The book discusses nuclear proliferation; the U.S. nuclear regulatory structure; issues of health, safety and transportation; the proposed sale of electrical energy as a means of paying for the transmutation system; and other key issues.

Managing Radioactive Waste Safely

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Publisher : The Stationery Office
ISBN 13 : 9780101738620
Total Pages : 104 pages
Book Rating : 4.7/5 (386 download)

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Book Synopsis Managing Radioactive Waste Safely by : Great Britain. Department for Environment, Food & Rural Affairs

Download or read book Managing Radioactive Waste Safely written by Great Britain. Department for Environment, Food & Rural Affairs and published by The Stationery Office. This book was released on 2008 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published as part of the managing radioactive waste safely (MRWS) programme, this white paper sets out the UK Government's framework for managing higher activity radioactive waste in the long-term through geological disposal, coupled with safe and secure interim storage and ongoing research and development to support its optimised implementation. It also invites communities to express an interest in opening up, without commitment, discussions with Government on the possibility of hosting a geological disposal facility at some point in the future. In June 2007 the Government published a MRWS consultation document in conjunction with the devolved administrations for Wales and Northern Ireland. Responses to this consultation have been taken into consideration in the development of this white paper. The paper sets out the framework for the future implementation of geological disposal that includes: the approach to compiling and updating the UK Radioactive Waste Inventory (UKRWI) and using it as a basis for discussion with potential host communities; the Nuclear Decommissioning Authority's technical approach for developing a geological disposal facility, including the use of a staged implementation approach and ongoing research and development to support delivery. The white paper covers the amount of waste for disposal; preparation and planning for geological disposal; protecting people and the environment: regulation, planning and independent scrutiny; site selection using a voluntarism and partnership approach; the site assessment process; timing and next steps.

Evaluation of Actinide Partitioning and Transmutation

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Publisher : Bernan Press(PA)
ISBN 13 :
Total Pages : 144 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Evaluation of Actinide Partitioning and Transmutation by : International Atomic Energy Agency

Download or read book Evaluation of Actinide Partitioning and Transmutation written by International Atomic Energy Agency and published by Bernan Press(PA). This book was released on 1982 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Handbook of Advanced Radioactive Waste Conditioning Technologies

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Publisher : Elsevier
ISBN 13 : 085709095X
Total Pages : 505 pages
Book Rating : 4.8/5 (57 download)

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Book Synopsis Handbook of Advanced Radioactive Waste Conditioning Technologies by : Michael I. Ojovan

Download or read book Handbook of Advanced Radioactive Waste Conditioning Technologies written by Michael I. Ojovan and published by Elsevier. This book was released on 2011-01-24 with total page 505 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radioactive wastes are generated from a wide range of sources, including the power industry, and medical and scientific research institutions, presenting a range of challenges in dealing with a diverse set of radionuclides of varying concentrations. Conditioning technologies are essential for the encapsulation and immobilisation of these radioactive wastes, forming the initial engineered barrier required for their transportation, storage and disposal. The need to ensure the long term performance of radioactive waste forms is a key driver of the development of advanced conditioning technologies.The Handbook of advanced radioactive waste conditioning technologies provides a comprehensive and systematic reference on the various options available and under development for the treatment and immobilisation of radioactive wastes. The book opens with an introductory chapter on radioactive waste characterisation and selection of conditioning technologies. Part one reviews the main radioactive waste treatment processes and conditioning technologies, including volume reduction techniques such as compaction, incineration and plasma treatment, as well as encapsulation methods such as cementation, calcination and vitrification. This coverage is extended in part two, with in-depth reviews of the development of advanced materials for radioactive waste conditioning, including geopolymers, glass and ceramic matrices for nuclear waste immobilisation, and waste packages and containers for disposal. Finally, part three reviews the long-term performance assessment and knowledge management techniques applicable to both spent nuclear fuels and solid radioactive waste forms.With its distinguished international team of contributors, the Handbook of advanced radioactive waste conditioning technologies is a standard reference for all radioactive waste management professionals, radiochemists, academics and researchers involved in the development of the nuclear fuel cycle. - Provides a comprehensive and systematic reference on the various options available and under development for the treatment and immobilisation of radioactive wastes - Explores radioactive waste characterisation and selection of conditioning technologies including the development of advanced materials for radioactive waste conditioning - Assesses the main radioactive waste treatment processes and conditioning technologies, including volume reduction techniques such as compaction

Leaching of Actinides and Technetium from Simulated High-level Waste Glass

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Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (12 download)

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Book Synopsis Leaching of Actinides and Technetium from Simulated High-level Waste Glass by :

Download or read book Leaching of Actinides and Technetium from Simulated High-level Waste Glass written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: