Processes for the control of /sup 14/CO/sub 2/ during reprocessing

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The fixation of /sup 14/CO/sub 2/ may be required at some future time because of the significant fractional contribution of /sup 14/C, via the ingestion pathway, to the total population dose from the nuclear fuel cycle, even though the actual quantity of this dose is very small when compared to natural background. The work described here was done in support of fuel reprocessing development, of both graphite fuel (HTGRs) and metal-clad fuel (LWRs and LMFBRs), and was directed to the control of /sup 14/CO/sub 2/ released during reprocessing operations. However, portions of this work are also applicable to the control ... continued below

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Pages: 28

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Notz, K.J.; Holladay, D.W.; Forsberg, C.W. & Haag, G.L. January 1, 1980.

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The fixation of /sup 14/CO/sub 2/ may be required at some future time because of the significant fractional contribution of /sup 14/C, via the ingestion pathway, to the total population dose from the nuclear fuel cycle, even though the actual quantity of this dose is very small when compared to natural background. The work described here was done in support of fuel reprocessing development, of both graphite fuel (HTGRs) and metal-clad fuel (LWRs and LMFBRs), and was directed to the control of /sup 14/CO/sub 2/ released during reprocessing operations. However, portions of this work are also applicable to the control of /sup 14/CO/sub 2/ released during reactor operation. The work described falls in three major areas: (1) The application of liquid-slurry fixation with Ca(OH)/sub 2/, which converts the CO/sub 2/ to CaCO/sub 3/, carried out after treatment of the CO/sub 2/-containing stream to remove other gaseous radioactive components, mainly /sup 85/Kr. This approach is primarily for application to HTGR fuel reprocessing. (2) The above process for CO/sub 2/ fixation, but used ahead of Kr removal, and followed by a molecular sieve process to take out the /sup 85/Kr. This approach was developed for use with HTGR reprocessing, but certain aspects also have application to metal-clad fuel reprocessing and to reactor operation. (3) The use of solid Ba(OH)/sub 2/ hydrate reacting directly with the gaseous phase. This process is generally applicable to both reprocessing and to reactor operation.

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Pages: 28

Notes

Dep. NTIS, PC A03/MF A01.

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  • International symposium on management of gaseous wastes from nuclear facilities, Vienna, Austria, 18 Feb 1980

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  • Report No.: CONF-800211-2(Draft)
  • Grant Number: W-7405-ENG-26
  • Office of Scientific & Technical Information Report Number: 5608137
  • Archival Resource Key: ark:/67531/metadc1093723

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Office of Scientific & Technical Information Technical Reports

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  • January 1, 1980

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  • Feb. 10, 2018, 10:06 p.m.

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  • April 17, 2018, 12:27 p.m.

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Notz, K.J.; Holladay, D.W.; Forsberg, C.W. & Haag, G.L. Processes for the control of /sup 14/CO/sub 2/ during reprocessing, article, January 1, 1980; Tennessee. (digital.library.unt.edu/ark:/67531/metadc1093723/: accessed November 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.