Download or read book REMOVAL OF CESIUM FROM REDOX ALKALINE SUPERNATANT WASTES BY ION EXCHANGE written by and published by . This book was released on 1964 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ion Exchange Pretreatment of Alkaline Radwaste for Cesium Removal written by and published by . This book was released on 1994 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: A cation exchange resin has been tested for its ability to remove the Cs ion from simulants of highly alkaline liquid nuclear wastes found at the Savannah River Site, Oak Ridge, and Hanford. The resin is a condensation polymer of the K salt of resorcinol and formaldehyde. It removes milli- and micromolar amounts of Cs from solutions that contain as high as 11 molar Na. Small column tests indicate that approximately 200 column volumes of SRS simulant and 205 column volumes of OR Tank 25 supernatant simulant can be processed before the resin requires regeneration. For these two wastes, a carousel arrangement of two columns in series and a third in reserve can be used effectively in a process. Hanford 101-AW simulant generates a less sharp breakthrough profile with this resin, though an operation using a maximum of three columns in series with another column off-line for regeneration would be effective if the resin beds are allowed to reach about 90% breakthrough before taking them out of service. Parameters that effect the performance of the resin with a particular feed solution are the concentrations of the two primary ions of interest, Cs+ and Na+, as well as the concentrations of K+ and OH−. A further ramification of the hydroxide ion concentration is its role in assisting oxidation of the resin, thereby destroying its usefulness in cesium removal. Although the performance of the resin is unaffected at doses of 1 E+8 rad ionizing radiation, it shows noticeable degradation after storage for 100 hours in alkaline solutions, generating quinone and ketone groups, as determined from C-13 NMR and by an increase in total organic C content of the contacting solution. Gases detected from the radiolysis of the resin/simulant mixture are CO2 from the resin, N2O from nitrate in the simulant, and H2 possibly from resin and simulant. Oxygen depletion in the mixture results from radiolysis and chemical degradation.
Download or read book Ion Exchange Recovery of Cesium from Alkaline Supernatant Waste written by R. P. Popovich and published by . This book was released on 1964 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ION EXCHANGE SEPARATION OF CESIUM FROM ALKALINE WASTE SUPERNATANT SOLUTIONS written by and published by . This book was released on 1963 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Cesium separation from Purex alkaline supernatant waste by ion exchange with inorganic zeolites or phenolic resins was investigated. High cesium loadings were obtained with AW-400, a synthetic zeolite manufactured by the Linde Company. A disadvantage of the AW-400 is the poor quality of the binder; efforts are being made to obtain a more suitable binder. Optimum loading conditions appear to be a flow rate of one to two column volumes of actual waste per hour, with 20-50 mesh exchanger at a temperature of 25 deg C.A scrub or sodium removal step can be accomplished with several solutions; dilute ammonium carbonate solutions are preferred for aged alkaline supernatant wastes. Cesium is eluted with a solution of ammonium carbonate and ammonium hydroxide. Exchangers that are most selective for cesium and have the highest loadings also require the greatest elution volumes. Ammonium carbonate can be volatilized by heating, leaving a cesium solution that is very satisfactory for subsequent packaging operations. Under practical conditions a Cs/Na DF of 103 and cesium recovery of> 99% can be obtained. (auth).
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1973 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reactor Fuel Processing written by and published by . This book was released on 1965 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radioactive Waste Management written by U.S. Atomic Energy Commission and published by . This book was released on 1973 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book TID written by and published by . This book was released on 1966 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1964 with total page 1528 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific Basis for Nuclear Waste Management written by Clyde J. Northrup and published by Springer. This book was released on 2013-12-19 with total page 932 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Symposium on the Scientific Basis for Nuclear Waste Manage ment was held in the fall of 1979 in Boston, Massachusetts and was one of a number of symposia included in the Annual Meeting of the Materials Research Society. The thrust of this annual Symposium is unique in the area of waste management. Recognizing that this is an area of great complexity which requires contributions from scien tists with many different backgrounds some of which are not normally associated with nuclear energy, the Materials Research Society pro vides a forum for discussions of a wide range of materials behavior and transport phenomena. As can be seen from the list of references in each paper, the authors draw heavily on contributions associated with professional societies in addition to the Materials Research Society, and this annual meeting encourages the cross-fertilization between disciplines that are essential to an adequate treatment of the problems associated with nuclear waste management. The proceed ings of the first Symposium that was held in 1978 was designated as Volume 1 in this series. The third Symposium is scheduled for 1980. The scope of the 1979 Symposium was guided by the Steering Committee: R. L. Schwoebel, Sandia Laboratories, USA (Chairman) W. Carbiener, Battelle Memorial Institute, Columbus, USA D. Ferguson, Oak Ridge National Laboratory, USA W. Heimerl, DWK, Mol, Belgium W. Lutze, Hahn Meitner Institut, Berlin, W. Germany J. D. Mather, Institute of Geological Sciences, Harwell, UK G. Oertel, Department of Energy, USA R.
Download or read book Industrial Radioactive Waste Disposal written by United States. Congress. Joint Committee on Atomic Energy. Special Subcommittee on Radiation and published by . This book was released on 1959 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: Considers problems of radioactive waste disposal and the precautions, safeguards, and standards to ensure safe handling of these wastes. Includes numerous nongovernmental reports on the sources and types of radioactive wastes. Focuses on the problems of dumping radioactive wastes into the Atlantic Ocean and Gulf of Mexico.
Download or read book Radioactive Waste Processing and Disposal written by and published by . This book was released on 1966 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Assessment of Commercially Available Ion Exchange Materials for Cesium Removal from Highly Alkaline Wastes written by Kriston P. Brooks and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Initial Evaluation of Two Organic Resins and Their Ion Exchange Column Performance for the Recovery of Cesium from Hanford Alkaline Wastes written by Lane A. Bray and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of a Continuous Ion Exchange Process for the Removal and Recovery of High purity Cesium from Alkaline Waste written by I. R. Higgins and published by . This book was released on 1958 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engineering Separations Unit Operations for Nuclear Processing written by Reid Peterson and published by CRC Press. This book was released on 2019-11-15 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt: Engineering Separations Unit Operations for Nuclear Processing provides insight into the fundamentals of separations in nuclear materials processing not covered in typical texts. This book integrates fuel cycle and waste processing into a single, coherent approach, demonstrating that the principles from one field can and should be applied to the other. It provides historical perspectives on nuclear materials processing, current assessment and challenges, and how past challenges were overcome. It also provides understanding of the engineering principles associated with handling nuclear materials. This book is aimed at researchers, graduate students, and professionals in the fields of chemical engineering, mechanical engineering, nuclear engineering, and materials engineering.
Download or read book Hearings and Reports on Atomic Energy written by United States. Congress. Joint Committee on Atomic Energy and published by . This book was released on 1959 with total page 754 pages. Available in PDF, EPUB and Kindle. Book excerpt:
