Author: Boris E. Burakov Publisher: World Scientific ISBN: 1848164181 Category : Science Languages : en Pages : 215
Book Description
This book summarises approaches and current practices in actinide immobilisation using chemically-durable crystalline materials e.g. ceramics and monocrystals. Durable actinide-containing materials including crystalline ceramics and single crystals are attractive for various applications such as nuclear fuel to burn excess Pu, chemically inert sources of irradiation for use in unmanned space vehicles or producing electricity for microelectronic devices, and nuclear waste disposal. Long-lived -emitting actinides such as Pu, Np, Am and Cm are currently of serious concern has a result of increased worldwide growth in the nuclear industry. Actinide-bearing wastes have also accumulated in different countries as a result of nuclear weapons production. Excess weapon and civil Pu from commercial spent fuel is waiting for environmentally-safe immobilisation. As actinides are chemical elements with unique features, they could be beneficially used in different areas of human life including medicine although currently there is no appropriate balance between safe actinide disposal and use. Both use and disposal of actinides require their immobilisation in a durable host material. The choice of an optimal actinide immobilisation route is often a great challenge for specialists. There is a wealth of information about actinide properties in many publications although little is published to summarise the currently accepted approaches and practices on actinide immobilisation. This book intends to provide such information based on the authors' experience and studies in nuclear material management and actinide immobilisation.
Author: Michael I. Ojovan Publisher: MDPI ISBN: 3039218468 Category : Technology & Engineering Languages : en Pages : 220
Book Description
The book outlines recent advances in nuclear wasteform materials including glasses, ceramics and cements and spent nuclear fuel. It focuses on durability aspects and contains data on performance of nuclear wasteforms as well as expected behavior in a disposal environment.
Author: Rehab O. Abdel Rahman Publisher: John Wiley & Sons ISBN: 1118512006 Category : Science Languages : en Pages : 245
Book Description
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.
Author: William E Lee Publisher: Elsevier ISBN: 085709744X Category : Technology & Engineering Languages : en Pages : 912
Book Description
Radioactive waste management and contaminated site clean-up reviews radioactive waste management processes, technologies, and international experiences. Part one explores the fundamentals of radioactive waste including sources, characterisation, and processing strategies. International safety standards, risk assessment of radioactive wastes and remediation of contaminated sites and irradiated nuclear fuel management are also reviewed. Part two highlights the current international situation across Africa, Asia, Europe, and North America. The experience in Japan, with a specific chapter on Fukushima, is also covered. Finally, part three explores the clean-up of sites contaminated by weapons programmes including the USA and former USSR. Radioactive waste management and contaminated site clean-up is a comprehensive resource for professionals, researchers, scientists and academics in radioactive waste management, governmental and other regulatory bodies and the nuclear power industry. Explores the fundamentals of radioactive waste including sources, characterisation, and processing strategies Reviews international safety standards, risk assessment of radioactive wastes and remediation of contaminated sites and irradiated nuclear fuel management Highlights the current international situation across Africa, Asia, Europe, and North America specifically including a chapter on the experience in Fukushima, Japan
Author: Tatsuki Ohji Publisher: John Wiley & Sons ISBN: 1118996704 Category : Technology & Engineering Languages : en Pages : 336
Book Description
This proceedings contains a collection of 26 papers from the following six 2013 Materials Science and Technology (MS&T'13) symposia: Green Technologies for Materials Manufacturing and Processing V Materials Development and Degradation Management in Nuclear Applications Materials Issues in Nuclear Waste Management in the 21st Century Energy Storage III: Materials, Systems and Applications Nanotechnology for Energy, Healthcare and Industry Hybrid Organic – Inorganic Materials for Alternative Energy
Author: William G. Fahrenholtz Publisher: John Wiley & Sons ISBN: 111892441X Category : Technology & Engineering Languages : en Pages : 456
Book Description
The first comprehensive book to focus on ultra-hightemperature ceramic materials in more than 20 years Ultra-High Temperature Ceramics are a family of compounds thatdisplay an unusual combination of properties, including extremelyhigh melting temperatures (>3000°C), high hardness, andgood chemical stability and strength at high temperatures. Typical UHTC materials are the carbides, nitrides, and borides oftransition metals, but the Group IV compounds (Ti, Zr, Hf) plus TaCare generally considered to be the main focus of research due tothe superior melting temperatures and stable high-meltingtemperature oxide that forms in situ. Rather than focusing on thelatest scientific results, Ultra-High Temperature Ceramics:Materials for Extreme Environment Applications broadly andcritically combines the historical aspects and the state-of-the-arton the processing, densification, properties, and performance ofboride and carbide ceramics. In reviewing the historic studies and recent progress in thefield, Ultra-High Temperature Ceramics: Materials for ExtremeEnvironment Applications provides: Original reviews of researchconducted in the 1960s and 70s Content on electronic structure,synthesis, powder processing, densification, property measurement,and characterization of boride and carbide ceramics. Emphasis on materials for hypersonicaerospace applications such as wing leading edges and propulsioncomponents for vehicles traveling faster than Mach 5 Information on materials used in theextreme environments associated with high speed cutting tools andnuclear power generation Contributions are based on presentations by leading researchgroups at the conference "Ultra-High Temperature Ceramics: Materials for Extreme Environment Applications II" held May 13-19,2012 in Hernstein, Austria. Bringing together disparate researchersfrom academia, government, and industry in a singular forum, themeeting cultivated didactic discussions and efforts between benchresearchers, designers and engineers in assaying results in abroader context and moving the technology forward toward near- andlong-term use. This book is useful for furnace manufacturers,aerospace manufacturers that may be pursuing hypersonic technology,researchers studying any aspect of boride and carbide ceramics, andpractitioners of high-temperature structural ceramics.
Author: Michael I. Ojovan Publisher: Elsevier ISBN: 9780081013632 Category : Languages : en Pages : 378
Book Description
Drawing on the authors extensive experience in the processing and disposal of waste, "An Introduction to Nuclear Waste Immobilisation," "Second Edition"examines the gamut of nuclear waste issues from the natural level of radionuclides in the environment to geological disposal of waste-forms and their long-term behavior. It covers all-important aspects of processing and immobilization, including nuclear decay, regulations, new technologies and methods. Significant focus is given to the analysis of the various matrices used, especially cement and glass, with further discussion of other matrices such as bitumen. The final chapter concentrates on the performance assessment of immobilizing materials and safety of disposal, providing a full range of the resources needed to understand and correctly immobilize nuclear waste. The fully revised second edition focuses on core technologies and has an integrated approach to immobilization and hazardsEach chapter focuses on a different matrix used in nuclear waste immobilization: cement, bitumen, glass and new materialsKeeps the most important issues surrounding nuclear waste - such as treatment schemes and technologies and disposal - at the forefront"
Author: Michael I Ojovan Publisher: Elsevier ISBN: 085709095X Category : Technology & Engineering Languages : en Pages : 512
Book Description
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
Author: Michael I. Ojovan Publisher: Elsevier ISBN: 0081027036 Category : Technology & Engineering Languages : en Pages : 512
Book Description
An Introduction to Nuclear Waste Immobilisation, Third Edition examines nuclear waste issues, including natural levels of radionuclides in the environment, the geological disposal of waste-forms, and their long-term behavior. It covers all-important aspects of processing and immobilization, including nuclear decay, regulations, new technologies and methods. The book has been updated to include a discussion of the disposal of nuclear waste from non-energy sources, also adding a chapter on the nuclear fuel cycle. Significant focus is given to the analysis of the various matrices used, especially cement and glass, with further discussion of other matrices, such as bitumen. The book's final chapter concentrates on the performance assessment of immobilizing materials and safety of disposal, providing a full range of resources needed to understand and correctly immobilize nuclear waste. Focuses on core technologies and an integrated approach to immobilization and hazards Includes new scientific findings on wasteform performance and novel technological developments Provides expanded coverage on decommissioning waste, including clearance of bulk materials from regulatory control and novel processing approaches Focuses on different matrices used in nuclear waste immobilization, including cement, bitumen, glass and new materials
Author: Boris E. Burakov
Author: Michael I. Ojovan
Author: Rehab O. Abdel Rahman
Author: William E Lee
Author: Tatsuki Ohji
Author: Luís D. Carlos
Author: William G. Fahrenholtz
Author: Michael I. Ojovan
Author: Michael I Ojovan
Author: Michael I. Ojovan