Benzene Generation Testing for Tank 48H Waste Disposition

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In support for the Aggregation option, researchers performed a series of tests using actual Tank 48H slurries. The tests were designed to examine potential benzene generation issues if the Tank 48H slurry is disposed to Saltstone. Personnel used the archived Tank 48H sample (HTF-E-03-127, collected September 17, 2003) for the experiments. The tests included a series of three experiments (Tests A, B, and F) performed in duplicate, giving a total of six experiments. Test A used Tank 48H slurry mixed with approximately 20:1 with Defense Waste Processing Facility (DWPF) Recycle from Tanks 21H and 22H. Test B used Tank 48H ... continued below

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PETERS, THOMAS November 16, 2004.

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In support for the Aggregation option, researchers performed a series of tests using actual Tank 48H slurries. The tests were designed to examine potential benzene generation issues if the Tank 48H slurry is disposed to Saltstone. Personnel used the archived Tank 48H sample (HTF-E-03-127, collected September 17, 2003) for the experiments. The tests included a series of three experiments (Tests A, B, and F) performed in duplicate, giving a total of six experiments. Test A used Tank 48H slurry mixed with approximately 20:1 with Defense Waste Processing Facility (DWPF) Recycle from Tanks 21H and 22H. Test B used Tank 48H slurry mixed with approximately 2.7:1 with DWPF Recycle from Tanks 21H and 22H, while Test F used Tank 48H slurry as-is. Tests A and B occurred at 45 degrees C, while Test F occurred at 55 degrees C. Over a period of 8 weeks, personnel collected samples for analysis, once per week. Each sample was tested with the in-cell gamma counter. The researchers noted a decline in the cesium activity in solution which is attributed to temperature dependence of the complex slurry equilibrium. Selected samples were sent to ADS for potassium, boron, and cesium analysis. The benzene generation rate was inferred from the TPB destruction which is indirectly measured by the in-growth of cesium, potassium or boron. The results of all the analyses reveal no discernible in-growth of radiocesium, potassium or boron, indicating no significant tetraphenylborate (TPB) decomposition in any of the experiments. From boron measurements, the inferred rate of TPB destruction remained less than 0.325 mg/(L-h) implying a maximum benzene generation rate of less than 0.332 mg/(L-h)

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  • Other Information: PBD: 16 Nov 2004

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  • Report No.: WSRC-TR-2004-00422
  • Grant Number: AC09-96SR18500
  • DOI: 10.2172/836747 | External Link
  • Office of Scientific & Technical Information Report Number: 836747
  • Archival Resource Key: ark:/67531/metadc783593

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  • November 16, 2004

Added to The UNT Digital Library

  • Dec. 3, 2015, 9:30 a.m.

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  • May 4, 2016, 9:31 p.m.

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PETERS, THOMAS. Benzene Generation Testing for Tank 48H Waste Disposition, report, November 16, 2004; South Carolina. (digital.library.unt.edu/ark:/67531/metadc783593/: accessed July 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.