Testing of low-temperature stabilization alternatives for salt containing mixed wastes -- Approach and results to date

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Description

Through its annual process of identifying technology deficiencies associated with waste treatment, the Department of Energy`s (DOE) Mixed Waste Focus Area (MWFA) determined that the former DOE weapons complex lacks efficient mixed waste stabilization technologies for salt containing wastes. These wastes were generated as sludge and solid effluents from various primary nuclear processes involving acids and metal finishing; and well over 10,000 cubic meters exist at 6 sites. In addition, future volumes of these problematic wastes will be produced as other mixed waste treatment methods such as incineration and melting are deployed. The current method used to stabilize salt waste ... continued below

Physical Description

11 p.

Creation Information

Maio, V.; Loomis, G.; Spence, R.D.; Smith, G.; Biyani, R.K. & Wagh, A. May 1, 1998.

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This report 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. More information about this report can be viewed below.

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  • Maio, V.
  • Loomis, G. Lockheed Martin Idaho Technologies Co., Idaho Falls, ID (United States)
  • Spence, R.D. Oak Ridge National Lab., TN (United States)
  • Smith, G. Pacific Northwest National Lab., Richland, WA (United States)
  • Biyani, R.K. SGN Eurisys Services Corp., Richland, WA (United States)
  • Wagh, A. Argonne National Lab., IL (United States)

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Description

Through its annual process of identifying technology deficiencies associated with waste treatment, the Department of Energy`s (DOE) Mixed Waste Focus Area (MWFA) determined that the former DOE weapons complex lacks efficient mixed waste stabilization technologies for salt containing wastes. These wastes were generated as sludge and solid effluents from various primary nuclear processes involving acids and metal finishing; and well over 10,000 cubic meters exist at 6 sites. In addition, future volumes of these problematic wastes will be produced as other mixed waste treatment methods such as incineration and melting are deployed. The current method used to stabilize salt waste for compliant disposal is grouting with Portland cement. This method is inefficient since the highly soluble and reactive chloride, nitrate, and sulfate salts interfere with the hydration and setting processes associated with grouting. The inefficiency results from having to use low waste loadings to ensure a durable and leach resistant final waste form. The following five alternatives were selected for MWFA development funding in FY97 and FY98: phosphate bonded ceramics; sol-gel process; polysiloxane; polyester resin; and enhanced concrete. Comparable evaluations were planned for the stabilization development efforts. Under these evaluations each technology stabilized the same type of salt waste surrogates. Final waste form performance data such as compressive strength, waste loading, and leachability could then be equally compared. Selected preliminary test results are provided in this paper.

Physical Description

11 p.

Notes

INIS; OSTI as DE98005732

Source

  • SPECTRUM `98: nuclear and hazardous waste management international topical meeting, Denver, CO (United States), 13-18 Sep 1998

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  • Other: DE98005732
  • Report No.: ORNL/CP--98259
  • Report No.: CONF-980905--
  • Grant Number: AC05-96OR22464
  • DOI: 10.2172/671934 | External Link
  • Office of Scientific & Technical Information Report Number: 671934
  • Archival Resource Key: ark:/67531/metadc709019

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • May 1, 1998

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

Description Last Updated

  • June 14, 2016, 5:15 p.m.

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Maio, V.; Loomis, G.; Spence, R.D.; Smith, G.; Biyani, R.K. & Wagh, A. Testing of low-temperature stabilization alternatives for salt containing mixed wastes -- Approach and results to date, report, May 1, 1998; Tennessee. (digital.library.unt.edu/ark:/67531/metadc709019/: accessed September 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.