Use of the TRUEX process for the pretreatment of neutralized cladding removal waste (NCRW) sludge -- Results of FY 1990 studies

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The goal of this process is to separate the transuranic elements from the bulk components so that the bulk components can be disposed of as low-level waste with only a small transuranic-containing fraction requiring geologic disposal. The pretreatment process examined here is the one indicated to be most promising in the initial studies. It involves dissolving the unwashed sludge in nitric acid and then using the TRUEX solvent extraction process to remove the transuranic elements from the bulk components of the waste. The areas identified in this work that need additional information are gradual precipitate formation as dissolved sludge solutions ... continued below

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Pages: (54 p)

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Swanson, J.L. September 1, 1991.

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Description

The goal of this process is to separate the transuranic elements from the bulk components so that the bulk components can be disposed of as low-level waste with only a small transuranic-containing fraction requiring geologic disposal. The pretreatment process examined here is the one indicated to be most promising in the initial studies. It involves dissolving the unwashed sludge in nitric acid and then using the TRUEX solvent extraction process to remove the transuranic elements from the bulk components of the waste. The areas identified in this work that need additional information are gradual precipitate formation as dissolved sludge solutions age, and formation of solid material when the dissolved sludge solution is contacted with the solvent used in the TRUEX process. 5 refs., 71 figs., 10 tabs.

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Pages: (54 p)

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OSTI; NTIS; INIS; GPO Dep.

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  • Other: DE92000353
  • Report No.: PNL-7780
  • Grant Number: AC06-76RL01830
  • DOI: 10.2172/5178926 | External Link
  • Office of Scientific & Technical Information Report Number: 5178926
  • Archival Resource Key: ark:/67531/metadc1059498

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  • September 1, 1991

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  • Jan. 22, 2018, 7:23 a.m.

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  • Jan. 31, 2018, 1:01 p.m.

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Swanson, J.L. Use of the TRUEX process for the pretreatment of neutralized cladding removal waste (NCRW) sludge -- Results of FY 1990 studies, report, September 1, 1991; Richland, Washington. (digital.library.unt.edu/ark:/67531/metadc1059498/: accessed September 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.