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Development Of Acetic Acid Removal Technology For The Urex Process
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Book Synopsis Development of Acetic Acid Removal Technology for the UREX+Process by :
Download or read book Development of Acetic Acid Removal Technology for the UREX+Process written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: It is imperative that acetic acid is removed from a waste stream in the UREX+process so that nitric acid can be recycled and possible interference with downstreatm steps can be avoidec. Acetic acid arises from acetohydrozamic acid (AHA), and is used to suppress plutonium in the first step of the UREX+process. Later, it is hydrolyzed into hydroxyl amine nitrate and acetic acid. Many common separation technologies were examined, and solvent extraction was determined to be the best choice under process conditions. Solvents already used in the UREX+ process were then tested to determine if they would be sufficient for the removal of acetic acid. The tributyl phosphage (TBP)-dodecane diluent, used in both UREX and NPEX, was determined to be a solvent system that gave sufficient distribution coefficients for acetic acid in addition to a high separation factor from nitric acid.
Book Synopsis Removing Acetic Acid from the UREX+process by : Jessica Anne Mitchell
Download or read book Removing Acetic Acid from the UREX+process written by Jessica Anne Mitchell and published by . This book was released on 2008 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: Acetic acid needs to be removed from a waste stream in the UREX+ process so that nitric acid can be recycled and possible interference with downstream steps can be avoided. Acetic acid arises from acetohydroxamic acid (AHA) used to suppress plutonium in the first step of the UREX+ process. Later, it is hydrolyzed into hydroxyl amine nitrate and acetic acid. Many common separation technologies were examined, and solvent extraction was determined to be the best choice under process conditions. Solvents already used in the UREX+ process were then tested to determine if they would be sufficient for the removal of acetic acid. The tributyl phosphate (TBP)-dodecane diluent, used in both UREX and NPEX, was determined to be a solvent system that gave sufficient distribution coefficients for acetic acid in addition to a high separation factor from nitric acid. This solvent system was tested under various TBP concentrations in the dodecane to create a concentration plot that can be used for further flow sheet development. Each step in the UREX+ process was examined to determine if there was any acetic acid interference in the performance of any step of the UREX+ flow sheet that would make it necessary to remove the acetic acid prior to that step. It was found that no interference with acetic acid was present. Therefore, the acetic acid removal step can be placed essentially anywhere in the process. For simplicity, it has been proposed to place the removal step at the end of the process after TALSPEAK where all desirable metals have already been extracted and the nitric acid waste stream is prepared to be recycled.
Download or read book Nuclear News written by and published by . This book was released on 2006 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Encyclopedic Dictionary of Named Processes in Chemical Technology by : Alan E. Comyns
Download or read book Encyclopedic Dictionary of Named Processes in Chemical Technology written by Alan E. Comyns and published by CRC Press. This book was released on 2007-06-07 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recommended, by Choice Current Reviews for Academic Libraries,. Covering a broad spectrum of chemical technology, from the gigantic Bessemer process for making steel to the microscopic Manasevit process for applying circuits to silicon chips, the Encyclopedic Dictionary of Named Processes in Chemical Technology, Third Edition
Book Synopsis State-of-the-art Report on the Progress of Nuclear Fuel Cycle Chemistry by :
Download or read book State-of-the-art Report on the Progress of Nuclear Fuel Cycle Chemistry written by and published by . This book was released on 2018 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: The implementation of advanced nuclear systems requires that new technologies associated with the back end of the fuel cycle are developed. The separation of minor actinides from other fuel components is one of the advanced concepts being studied to help close the nuclear fuel cycle and to improve the long-term effects on the performance of geological repositories. Separating spent fuel elements and subsequently converting them through transmutation into short-lived nuclides should considerably reduce the longterm risks associated with nuclear power generation.
Download or read book Chemical Engineering Progress written by and published by . This book was released on 2008 with total page 718 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advanced Separation Techniques for Nuclear Fuel Reprocessing and Radioactive Waste Treatment by : Kenneth L Nash
Download or read book Advanced Separation Techniques for Nuclear Fuel Reprocessing and Radioactive Waste Treatment written by Kenneth L Nash and published by Elsevier. This book was released on 2011-03-15 with total page 513 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced separations technology is key to closing the nuclear fuel cycle and relieving future generations from the burden of radioactive waste produced by the nuclear power industry. Nuclear fuel reprocessing techniques not only allow for recycling of useful fuel components for further power generation, but by also separating out the actinides, lanthanides and other fission products produced by the nuclear reaction, the residual radioactive waste can be minimised. Indeed, the future of the industry relies on the advancement of separation and transmutation technology to ensure environmental protection, criticality-safety and non-proliferation (i.e., security) of radioactive materials by reducing their long-term radiological hazard. Advanced separation techniques for nuclear fuel reprocessing and radioactive waste treatment provides a comprehensive and timely reference on nuclear fuel reprocessing and radioactive waste treatment. Part one covers the fundamental chemistry, engineering and safety of radioactive materials separations processes in the nuclear fuel cycle, including coverage of advanced aqueous separations engineering, as well as on-line monitoring for process control and safeguards technology. Part two critically reviews the development and application of separation and extraction processes for nuclear fuel reprocessing and radioactive waste treatment. The section includes discussions of advanced PUREX processes, the UREX+ concept, fission product separations, and combined systems for simultaneous radionuclide extraction. Part three details emerging and innovative treatment techniques, initially reviewing pyrochemical processes and engineering, highly selective compounds for solvent extraction, and developments in partitioning and transmutation processes that aim to close the nuclear fuel cycle. The book concludes with other advanced techniques such as solid phase extraction, supercritical fluid and ionic liquid extraction, and biological treatment processes. With its distinguished international team of contributors, Advanced separation techniques for nuclear fuel reprocessing and radioactive waste treatment is a standard reference for all nuclear waste management and nuclear safety professionals, radiochemists, academics and researchers in this field. A comprehensive and timely reference on nuclear fuel reprocessing and radioactive waste treatment Details emerging and innovative treatment techniques, reviewing pyrochemical processes and engineering, as well as highly selective compounds for solvent extraction Discusses the development and application of separation and extraction processes for nuclear fuel reprocessing and radioactive waste treatment
Book Synopsis Development and Manufacture of Yogurt and Other Functional Dairy Products by : Fatih Yildiz
Download or read book Development and Manufacture of Yogurt and Other Functional Dairy Products written by Fatih Yildiz and published by CRC Press. This book was released on 2016-04-19 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: While the science of yogurt is nearly as old as the origin of mankind, there have been rapid changes in yogurt development since the turn of the 19th century, fueled by continuing developments in biological sciences. Development and Manufacture of Yogurt and Other Functional Dairy Products presents a comprehensive review of all aspects of yogurt an
Book Synopsis Advances in Crystallization Processes by : Yitzhak Mastai
Download or read book Advances in Crystallization Processes written by Yitzhak Mastai and published by BoD – Books on Demand. This book was released on 2012-04-27 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: Crystallization is used at some stage in nearly all process industries as a method of production, purification or recovery of solid materials. In recent years, a number of new applications have also come to rely on crystallization processes such as the crystallization of nano and amorphous materials. The articles for this book have been contributed by the most respected researchers in this area and cover the frontier areas of research and developments in crystallization processes. Divided into five parts this book provides the latest research developments in many aspects of crystallization including: chiral crystallization, crystallization of nanomaterials and the crystallization of amorphous and glassy materials. This book is of interest to both fundamental research and also to practicing scientists and will prove invaluable to all chemical engineers and industrial chemists in the process industries as well as crystallization workers and students in industry and academia.
Book Synopsis Havard's Nursing Guide to Drugs by : Adriana Tiziani
Download or read book Havard's Nursing Guide to Drugs written by Adriana Tiziani and published by Elsevier Health Sciences. This book was released on 2010 with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt: The information presented in this user friendly guide can be accessed either by therapeutic class or by system. As with previous editions each drug is independently reviewed. Tiziani from Monash University.
Book Synopsis Stress Responses of Lactic Acid Bacteria by : Effie Tsakalidou
Download or read book Stress Responses of Lactic Acid Bacteria written by Effie Tsakalidou and published by Springer Science & Business Media. This book was released on 2011-09-06 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beginning with the basics of lactic acid bacteria and stress response, then working into specific fields of research and current developments, Stress Responses of Lactic Acid Bacteria will serve as an essential guidebook to researchers in the field, industry professionals, and advanced students in the area. The exploration of stress responses in lactic acid bacteria began in the early 90s and revealed the differences that exist between LAB and the classical model microorganisms. A considerable amount of work has been performed on the main genera / species of LAB regarding the genes implicated and their actual role and regulation, and the mechanisms of stress resistance have also been elucidated. Recent genome and transcriptome analyses complement the proteome and genetic information available today and shed a new light on the perception of and the responses to stress by lactic acid bacteria.
Book Synopsis Disposition of High-Level Waste and Spent Nuclear Fuel by : National Research Council
Download or read book Disposition of High-Level Waste and Spent Nuclear Fuel written by National Research Council and published by National Academies Press. This book was released on 2001-07-05 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focused attention by world leaders is needed to address the substantial challenges posed by disposal of spent nuclear fuel from reactors and high-level radioactive waste from processing such fuel. The biggest challenges in achieving safe and secure storage and permanent waste disposal are societal, although technical challenges remain. Disposition of radioactive wastes in a deep geological repository is a sound approach as long as it progresses through a stepwise decision-making process that takes advantage of technical advances, public participation, and international cooperation. Written for concerned citizens as well as policymakers, this book was sponsored by the U.S. Department of Energy, U.S. Nuclear Regulatory Commission, and waste management organizations in eight other countries.
Book Synopsis Special Distillation Processes by : Zhigang Lei
Download or read book Special Distillation Processes written by Zhigang Lei and published by Elsevier. This book was released on 2021-08-21 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: Special Distillation Processes, Second Edition focuses on the latest developments in the field, such as separation methods that may prove useful for solving problems encountered during research. Topics include extraction, membrane and adsorption distillation involving the separation principle, process design and experimental techniques. The relationship between processes and techniques are also presented. Comprehensive and easy-to-read, this book provides key information needed to understand processes. It will be a valuable reference source for chemical engineers and students wishing to branch out in chemical engineering. Provides the only comprehensive book available on special distillation processes Contains a thorough introduction to recent developments in the field Presents a valuable reference for students, academics and engineers in chemical engineering
Book Synopsis Separations for the Nuclear Fuel Cycle in the 21st Century by : Gregg J. Lumetta
Download or read book Separations for the Nuclear Fuel Cycle in the 21st Century written by Gregg J. Lumetta and published by . This book was released on 2006 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on assessing the current state-of-the art in nuclear separations science and technology, and on identifying R&D directions required to enable nuclear separations to meet 21st Century demands for waste minimization, environment protection, safety, and security.
Book Synopsis Nuclear Waste Management by : Man-Sung Yim
Download or read book Nuclear Waste Management written by Man-Sung Yim and published by Springer Nature. This book was released on 2021-12-09 with total page 850 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book lays a comprehensive foundation for addressing the issue of safety in the lifecycle of nuclear waste. With the focus on the fundamental principles, the book covers key technical approaches to safety in the management of spent nuclear fuel, reprocessed high-level waste, low-level waste, and decommissioning wastes. Behaviors of nuclear waste in natural and engineered systems in relation to safety assessment are also described through the explanation of fundamental processes. For any country involved with the use of nuclear power, nuclear waste management is a topic of grave importance. Although many countries have heavily invested in nuclear waste management, having a successful national program still remains a major challenge. This book offers substantial guidance for those seeking solutions to these problems. As the problem of nuclear waste management is heavily influenced by social factors, the connection between technical and social issues in nuclear waste management is also discussed. The book is a core text for advanced students in nuclear and environmental engineering, and a valuable reference for those working in nuclear engineering and related areas.
Book Synopsis Ion Exchange and Solvent Extraction by : Bruce A. Moyer
Download or read book Ion Exchange and Solvent Extraction written by Bruce A. Moyer and published by CRC Press. This book was released on 2009-08-19 with total page 682 pages. Available in PDF, EPUB and Kindle. Book excerpt: The growth in the world's nuclear industry, motivated by peaking world oil supplies, concerns about the greenhouse effect, and domestic needs for energy independence, has resulted in a heightened focus on the need for next-generation nuclear fuel-cycle technologies. Ion Exchange and Solvent Extraction: A Series of Advances, Volume 19 provides a com
Download or read book A Secret World written by F. Pietra and published by Birkhäuser. This book was released on 2013-12-01 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: Underwater exploration is a fascinating activity because of the richness of sea life, the beautiful colors, and the contrast with terrestrial life. It can be done by diving or snorkeling -today there is fine equipment for diving and taking underwater pictures and, apart from being a source of pleasure, it forms the basis of modern ecological and behavioral marine studies. Diving is an emotional activity. The silence of the submarine world, only interrupted by breathing, has more than once evoked the monsters of the fabulous tales of my youth. Maybe because, although much time has elapsed since then, I still have a youth's ability to evaluate everything for the fascination it conveys. However, no more than that can be gained from underwater watehing. I am not saying that this is destined to be a futile exercise. Picasso watched sea urchins much in the same way while revealing their quintessence in his paintings at the Castle of Antibes. What I mean is that today marine life can also be viewed from the perspective of the natural products involved. This knowledge, subsequent to Picasso's time, adds much to the overall picture.
