Strategy for Addressing Composition Uncertainties in a Hanford High-level Waste Vitrification Plant
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Published: 1996
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Published: 1996
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DOWNLOAD EBOOKAuthor: M. F. Bryan
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Published: 1996
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Published: 1988
Total Pages: 480
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DOWNLOAD EBOOKAuthor: M. F. Bryan
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Published: 1996
Total Pages: 25
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DOWNLOAD EBOOKAuthor: M. F. Bryan
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Published: 1996
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DOWNLOAD EBOOKAuthor: Wallace W. Shulz
Publisher: Springer Science & Business Media
Published: 2013-11-11
Total Pages: 513
ISBN-13: 1489915435
DOWNLOAD EBOOKRadioactive wastes resulting from over 40 years of production of nuclear weapons in the U. S. are currently stored in 273 underground tanks at the U. S. Department of Energy Hanford site, Idaho National Engineering and Environmental Laboratory, Oak Ridge Reservation, and Savannah River site. Combined, tanks at these sjtes contain approximately 94,000,000 gallons of waste in a variety of forms including liquid, concrete-like salt cake, and various sludges. More than 730,000,000 curies of several radioactive isotopes are present in the underground tanks. Certainly, one of the greatest challenges facing the U. S. Department of Energy is how to characterize, retrieve, treat, and immobilize the great variety of tank wastes in a safe, timely, and cost-effective manner. For several years now, the U. S. Department of Energy has initiated and sponsored scientific and engineering studies, tests, and demonstrations to develop the myriad of technologies required to dispose of the radioactive tank wastes. In recent times, much of the Department of Energy R&D activities concerning tank wastes have been closely coordinated and organized through the Tanks Focus Area (IF A); responsibility for technical operations of the TF A has been assigned to the Pacific Northwest National Laboratory.
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Published: 1996
Total Pages: 952
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Published: 1994-10
Total Pages: 294
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DOWNLOAD EBOOKAuthor: American Statistical Association. Section on Physical and Engineering Sciences
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Published: 1995
Total Pages: 722
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Published: 1993
Total Pages: 12
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DOWNLOAD EBOOKThe Hanford Waste Vitrification Plant (HWVP) is being built to process the high-level and TRU waste into canistered glass logs for disposal in a national repository. Testing programs have been established within the Project to verify process technology using simulated waste. A parallel testing program with actual radioactive waste is being performed to confirm the validity of using simulates and glass property models for waste form qualification and process testing. The first feed type to be processed by and the first to be tested on a laboratory-scale is pretreated neutralized current acid waste (NCAW). The NCAW is a neutralized high-level waste stream generated from the reprocessing of irradiated nuclear fuel in the Plutonium and Uranium Extraction (PUREX) Plant at Hanford. As part of the fuel reprocessing, the high-level waste generated in PUREX was denitrated with sugar to form current acid waste (CAW). Sodium hydroxide and sodium nitrite were added to the CAW to minimize corrosion in the tanks, thus yielding neutralized CAW. The NCAW contains small amounts of plutonium, fission products from the irradiated fuel, stainless steel corrosion products, and iron and sulfate from the ferrous sulfamate reductant used in the PUREX process. This paper will discuss the results and status of the laboratory-scale radioactive testing.