Microwave calcination for plutonium immobilization and residue stabilization

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In the late 1980`s development was begun on a process using microwave energy to vitrify low level mixed waste sludge and transuranic mixed waste sludge generated in Building 374 at Rocky Flats. This process was shown to produce a dense, highly durable waste form. With the cessation of weapons production at Rocky Flats, the emphasis has changed from treatment of low level and TRU wastes to stabilizaiton of plutonium oxide and residues. This equipment is versatile and can be used as a heat source to calcine, react or vitrify many types of residues and oxides. It has natural economies in ... continued below

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12 p.

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Harris, M.J.; Rising, T.L.; Roushey, W.J. & Sprenger, G.S. December 1, 1995.

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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 12 times . More information about this article can be viewed below.

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Description

In the late 1980`s development was begun on a process using microwave energy to vitrify low level mixed waste sludge and transuranic mixed waste sludge generated in Building 374 at Rocky Flats. This process was shown to produce a dense, highly durable waste form. With the cessation of weapons production at Rocky Flats, the emphasis has changed from treatment of low level and TRU wastes to stabilizaiton of plutonium oxide and residues. This equipment is versatile and can be used as a heat source to calcine, react or vitrify many types of residues and oxides. It has natural economies in that it heats only the material to be treated, significantly reducing cycle times over conventional furnaces. It is inexpensive to operate in that most of the working components remain outside of any necessary contamination enclosure and therefore can easily be maintained. Limited testing has been successfully performed on cerium oxide (as a surrogate for plutonium oxide), surrogate electrorefining salts, surrogate residue sludge and residue ash. Future plans also include tests on ion exchange resins. In an attempt to further the usefullness of this technology, a mobile, self-contained microwave melting system is currently under development and expected to be operational at Rocky Flats Enviromental Technology Site by the 4th quarter of FY96.

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12 p.

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INIS; OSTI as DE96003497

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  • Plutonium stabilization and immobilization workshop, Washington, DC (United States), 12-14 Dec 1995

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  • Other: DE96003497
  • Report No.: RFP--5030
  • Report No.: CONF-951259--1
  • Grant Number: AC34-90RF62349
  • Office of Scientific & Technical Information Report Number: 172471
  • Archival Resource Key: ark:/67531/metadc669517

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  • December 1, 1995

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  • June 29, 2015, 9:42 p.m.

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  • Dec. 2, 2015, 6:47 p.m.

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Harris, M.J.; Rising, T.L.; Roushey, W.J. & Sprenger, G.S. Microwave calcination for plutonium immobilization and residue stabilization, article, December 1, 1995; United States. (digital.library.unt.edu/ark:/67531/metadc669517/: accessed September 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.