Status and progress in sludge washing: A pivotal pretreatment method Metadata

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Title

  • Main Title Status and progress in sludge washing: A pivotal pretreatment method

Creator

  • Author: Barton, W. B.
    Creator Type: Personal
  • Author: MacLean, G. T.
    Creator Type: Personal
  • Author: Meng, C. D.
    Creator Type: Personal
  • Author: Winkler, C. M.
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization
    Contributor Info: USDOE, Washington, DC (United States)

Publisher

  • Name: Westinghouse Hanford Company
    Place of Publication: Richland, Washington
    Additional Info: Westinghouse Hanford Co., Richland, WA (United States)

Date

  • Creation: 1995-01-01

Language

  • English

Description

  • Content Description: Separation of the bulk soluble chemical salts from the insoluble metal hydroxides and radionuclides is central to the strategy of disposing Hanford tank waste. Sludge washing and caustic leaching have been selected as the primary methods for processing the 230 million L (61,000,000 gal) of Hanford tank waste. These processes are very similar to those selected for processing waste at the West Valley Site in New York and the Savannah River Site in South Carolina. The purpose of sludge washing is to dissolve and remove the soluble salts in the waste. Leaching of the insoluble solids with caustic will be used to dissolve aluminum hydroxide and chromium hydroxide, and convert insoluble bismuth phosphate to soluble phosphate. The waste will be separated into a high-level solids fraction and a liquid fraction that can be disposed of as low-level waste after cesium removal. The washing and leaching operations involve batchwise mixing, settling, and decanting within the existing underground storage tanks.
  • Physical Description: 14 p.

Subject

  • Keyword: Low-Level Radioactive Wastes
  • Keyword: Sludges
  • Keyword: Radioisotopes
  • Keyword: Chromium Hydroxides
  • Keyword: Aluminium Hydroxides
  • Keyword: Underground Storage
  • Keyword: Washing
  • STI Subject Categories: 05 Nuclear Fuels
  • Keyword: Salts
  • Keyword: Tanks
  • Keyword: Waste Retrieval
  • Keyword: Cesium
  • Keyword: Purex Process
  • Keyword: Hanford Reservation
  • Keyword: Leaching

Source

  • Conference: Waste management `95, Tucson, AZ (United States), 26 Feb - 2 Mar 1995

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article

Format

  • Text

Identifier

  • Other: DE95006768
  • Report No.: WHC-SA--2696
  • Report No.: CONF-950216--62
  • Grant Number: AC06-87RL10930
  • Office of Scientific & Technical Information Report Number: 27826
  • Archival Resource Key: ark:/67531/metadc669231

Note

  • Display Note: INIS; OSTI as DE95006768
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