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Review Of Actinide And Strontium Loading Data For Mst And Mmst
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Book Synopsis REVIEW OF ACTINIDE AND STRONTIUM LOADING DATA FOR MST AND MMST. by :
Download or read book REVIEW OF ACTINIDE AND STRONTIUM LOADING DATA FOR MST AND MMST. written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: SRNL reviewed the relevant data from MST and mMST fissile loading studies to determine if further studies were required. With respect to MST, SRNL found that the published results adequately bound the expected conditions that Small Column Ion Exchange (SCIX) process will operate under. The lack of strontium data does not represent an issue as strontium is not relevant to criticality. There is no threat to criticality safety from the lack of strontium loading data. However, SRNL proposes a single test with MST to ensure that future SCIX operations are conservatively bounded and strontium maximum loading is understood. With respect to attempts to maximally load mMST, SRNL's knowledge on actinide and strontium loading is limited to uranium behavior. mMST has a very weak affinity for uranium, and even extended contact time at high uranium concentration shows minimal loading onto mMST. This leaves questions about the ability to load plutonium, neptunium and strontium. SRNL proposes to perform two tests with mMST to ensure that questions on plutonium, neptunium, and strontium sorption are answered, as well as ensuring that future mMST operations are conservatively bounded.
Book Synopsis Strontium and Actinide Sorption by MST and MMST Under Conditions Revelant to the Small Column Ion-Exchange Process by :
Download or read book Strontium and Actinide Sorption by MST and MMST Under Conditions Revelant to the Small Column Ion-Exchange Process written by and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A series of tests were performed to examine the kinetics of Sr and actinide removal by monosodium titanate (MST) and modified monosodium titanate (mMST) under mixing conditions similar to what will be provided in the Small Column Ion Exchange (SCIX) Program. Similar removal kinetics were seen for two different mixing energies, indicating that under these conditions bulk solution transport is not the rate limiting step for Sr and actinide removal. Sr removal was found to be rapid for both MST and mMST, reaching steady-state conditions within six hours. In contrast, at least six weeks is necessary to reach steady-state conditions for Pu with MST. For mMST, steady-state conditions for Pu were achieved within two weeks. The actual contact time required for the SCIX process will depend on starting sorbate concentrations as well as the requirements for the decontaminated salt solution. During testing leaks occurred in both the MST and mMST tests and evidence of potential desorption was observed. The desorption likely occurred as a result of the change in solids to liquid phase ratio that occurred due to the loss of solution. Based on these results, Savannah River National Laboratory (SRNL) recommended additional testing to further study the effect of changing phase ratios on desorption. This testing is currently in progress and results will be documented in a separate report.
Book Synopsis Determination of Fissile Loadings Onto Monosodium Titanate (MST) Under Conditions Relevant to the Actinide Removal Process Facility by : T. Peters
Download or read book Determination of Fissile Loadings Onto Monosodium Titanate (MST) Under Conditions Relevant to the Actinide Removal Process Facility written by T. Peters and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes the results of an experimental study to measure the sorption of fissile actinides on monosodium titanate (MST) at conditions relevant to operation of the Actinide Removal Process (ARP). The study examined the effect of a single contact of a large volume of radionuclide-spiked simulant solution with a small mass of MST. The volume of simulant to MST (8.5 L to 0.2 g of MST solids) was designed to mimic the maximum phase ratio that occurs between the multiple contacts of MST and waste solution and washing of the accumulated solids cycle of ARP. This work provides the following results. (1) After a contact time of {approx}2 weeks, we measured the following actinide loadings on the MST (average of solution and solids data), Pu: 2.79 {+-} 0.197 wt %, U: 14.0 {+-} 1.04 wt %, and Np: 0.839 {+-} 0.0178 wt %. (2) The plutonium and uranium loadings reported above are considerably higher than previously reported values. The higher loading result from the very high phase ratio and the high initial mass concentrations of uranium and plutonium. A separate upcoming document details the predicted values for this system versus the results. (3) The strontium DF values measured in these tests proved much lower than those reported previously with simulants having the same bulk chemical composition. The low strontium DF values reflect the very low initial mass concentration of strontium in this simulant (100 {micro}g/L) compared to that in previous testing ( 600 {micro}g/L).
Book Synopsis Atomic and Nuclear Analytical Methods by : Hem Raj Verma
Download or read book Atomic and Nuclear Analytical Methods written by Hem Raj Verma and published by Springer Science & Business Media. This book was released on 2007-04-26 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book compares and offers a comprehensive overview of nine analytical techniques important in material science and many other branches of science. All these methods are already well adapted to applications in diverse fields such as medical, environmental studies, archaeology, and materials science. This clearly presented reference describes and compares the principles of the methods and the various source and detector types.
Book Synopsis Actinide Separations by : James D. Navratil
Download or read book Actinide Separations written by James D. Navratil and published by . This book was released on 1980 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Book Synopsis Nuclear Energy and the Environment by : Chien Wai
Download or read book Nuclear Energy and the Environment written by Chien Wai and published by OUP USA. This book was released on 2011-05-26 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents key issues which must be addressed in order to develop sustainable nuclear energy technologies for the 21st century, such as responsible management of nuclear wastes, more efficient processes for conversion of uranium to energy, and effective and secure techniques for recycling used nuclear fuel.
Download or read book Reactor Materials written by and published by . This book was released on 1968 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Neutron Personnel Dosimetry by : Robert B. Schwartz
Download or read book Neutron Personnel Dosimetry written by Robert B. Schwartz and published by . This book was released on 1987 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Waste Forms Technology and Performance by : National Research Council
Download or read book Waste Forms Technology and Performance written by National Research Council and published by National Academies Press. This book was released on 2011-09-05 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Department of Energy's Office of Environmental Management (DOE-EM) is responsible for cleaning up radioactive waste and environmental contamination resulting from five decades of nuclear weapons production and testing. A major focus of this program involves the retrieval, processing, and immobilization of waste into stable, solid waste forms for disposal. Waste Forms Technology and Performance, a report requested by DOE-EM, examines requirements for waste form technology and performance in the cleanup program. The report provides information to DOE-EM to support improvements in methods for processing waste and selecting and fabricating waste forms. Waste Forms Technology and Performance places particular emphasis on processing technologies for high-level radioactive waste, DOE's most expensive and arguably most difficult cleanup challenge. The report's key messages are presented in ten findings and one recommendation.
Book Synopsis Pediatric Uroradiology by : R. Fotter
Download or read book Pediatric Uroradiology written by R. Fotter and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 770 pages. Available in PDF, EPUB and Kindle. Book excerpt: The text is specifically devoted to pediatric urogenital radiology. It covers all aspects of the subject in great depth, and contains essential information for the pediatrician, pediatric surgeon, and urologist. It is specifically designed to aid the clinician in decisions on imaging management. The technique and current value of all imaging and interventional procedures are presented, and the diverse problems associated with the changing anatomy, physiology, and pathophysiology of the growing organism are explained. Throughout, additional information is provided on operative options, postoperative complications, and clinical and radiological normal values. This book will prove of great interest to all who are involved in caring for children.
Book Synopsis Nuclear Magnetic Resonance Shift Reagents by : Robert Sievers
Download or read book Nuclear Magnetic Resonance Shift Reagents written by Robert Sievers and published by Elsevier. This book was released on 2012-12-02 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nuclear Magnetic Shift Reagents presents the proceedings of the Symposium on the Chemistry of Nuclear Magnetic Resonance Shift Reagents, held in Dallas, Texas, on April 9–11, 1973. This book discusses the fundamental aspects of shift reagent chemistry as well as the physical and chemical properties of shift reagents. Comprised of 16 chapters, this compilation of papers starts with an overview of the deuterium isotope effect in lanthanide shifts. This text then examines the variations in coordination geometries for chemically equivalent molecules of shift reagent-substrate complexes in the solid state, which illustrate the ease with which changes occur in the coordination sphere of lanthanide complexes. Other chapters discuss the dipolar nature of proton resonance shifts in lanthanide shift reagent systems. This book considers as well the feasibility of using chiral shift reagents. The final chapter deals with the effects of chemical equilibrium and adduct stoichiometry in studies of shift reagent. Chemists, biochemists, and molecular physicists will find this book useful.
Download or read book AACR2-e written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains complete text of the Anglo-American Cataloging Rules, 2d ed., 1998 rev., including all amendments, all appendices, a fully searchable table of contents and index, a tutorial, and Folio Views Infobase.
Book Synopsis Chemical Precipitation Processes for the Treatment of Aqueous Radioactive Waste by :
Download or read book Chemical Precipitation Processes for the Treatment of Aqueous Radioactive Waste written by and published by . This book was released on 1992 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this report is to provide a review of chemical precipitation processes for the treatment of low and intermediate level aqueous waste. It supersedes Technical Reports Series No. 89, Chemical Treatment of Radioactive Wastes, published in 1968. It provides data on the performance of existing plants and on improved processes that are in an advanced state of development.
Book Synopsis Prussian Blue-type Nanoparticles and Nanocomposites by : Yannick Guari
Download or read book Prussian Blue-type Nanoparticles and Nanocomposites written by Yannick Guari and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanochemistry tools aid the design of Prussian blue and its analogue nanoparticles and nanocomposites. The use of such nanomaterials is now widely regarded as an alternative to other inorganic nanomaterials in a variety of scientific applications. This book, after addressing Prussian blue and its analogues in a historical context and their numerous applications over time, compiles and details the latest cutting-edge scientific research on these nanomaterials. It compiles and deatils the latest cutting-edge scientific research on these nanomaterials. The book provides an overview of the methodological concepts of the nanoscale synthesis of Prussian blue and its analogues, as well as the study and understanding of their properties and of the extent and diversity of application fields in relation to the major societal challenges of the 21st century on energy, environment, and health.
Book Synopsis Civil Space Technology Initiative by :
Download or read book Civil Space Technology Initiative written by and published by . This book was released on 1990 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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