Wet Chemical Oxidation and Stabilization of Mixed and Low Level Organic Wastes

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Mixed acid oxidation is a non-incineration process capable of destroying organic compounds, including papers, plastics, resins, and oils, at moderate temperatures and pressures. The technology, developed at the Savannah River Site, uses a mixture of an oxidant (nitric acid) and a carrier acid (phosphoric acid). The carrier acid acts as a holding medium which allows appreciable amounts of the oxidant to be retained in solution at atmospheric pressure and at the temperatures needed for oxidation. The phosphoric acid also provides the raw materials for making a final waste which contains the metal contaminants from the waste stream. Savannah River has ... continued below

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Pierce, R.A.; Livingston, R.R.; Burge, D.A. & Ramsey, W.G. March 1, 1998.

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Description

Mixed acid oxidation is a non-incineration process capable of destroying organic compounds, including papers, plastics, resins, and oils, at moderate temperatures and pressures. The technology, developed at the Savannah River Site, uses a mixture of an oxidant (nitric acid) and a carrier acid (phosphoric acid). The carrier acid acts as a holding medium which allows appreciable amounts of the oxidant to be retained in solution at atmospheric pressure and at the temperatures needed for oxidation. The phosphoric acid also provides the raw materials for making a final waste which contains the metal contaminants from the waste stream. Savannah River has designed, built, and started up a 40-liter pilot reaction vessel to demonstrate the process and its sub-systems on a larger scale than earlier testing. The unit has been demonstrated and has provided important data on the operation of the oxidation and acid recovery systems. Specific results will be presented on oxidation conditions, acid recovery efficiency, chloride removal, metal retention, and process monitoring. Additional studies have been conducted with a smaller vessel in a radioactive hood. Testing with plutonium-bearing waste simulants was performed to make preliminary predictions about the behavior of plutonium in the process. Samples of the remaining phosphoric acid from these tests has been converted to two separate final forms for analysis. Results will be presented on plutonium fractionation during the oxidation process and waste form stability.

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10 p.

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INIS; OSTI as DE98052113

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  • Waste management `98, Tucson, AZ (United States), 1-5 Mar 1998

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  • Other: DE98052113
  • Report No.: WSRC-MS--97-00829-Rev.1
  • Report No.: CONF-980307--
  • Grant Number: AC09-96SR18500
  • Office of Scientific & Technical Information Report Number: 605642
  • Archival Resource Key: ark:/67531/metadc689729

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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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  • March 1, 1998

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  • Aug. 14, 2015, 8:43 a.m.

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  • Feb. 9, 2016, 7:34 p.m.

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Pierce, R.A.; Livingston, R.R.; Burge, D.A. & Ramsey, W.G. Wet Chemical Oxidation and Stabilization of Mixed and Low Level Organic Wastes, article, March 1, 1998; Aiken, South Carolina. (digital.library.unt.edu/ark:/67531/metadc689729/: accessed December 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.