Direct chemical oxidation: applications to hazardous waste treatment in demilitarization

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Several applications of Direct Chemical Oxidation (DCO) relevant to the demilitarization of munitions are reported and evaluated here. The role of low levels of transition metal catalysts on rate of oxidation of organics by peroxydisulfate was investigated, because such materials are normally present in demilitarization wastes and could conceivably alter the rate or effectiveness of DCO. It was found that the presence of transition metal ions of Fe, Co, Cu, and Mn had little or no accelerating effect. Silver alone substantially increased oxidation rate, except where segregated as AgCl by free chloride. The destruction of trace explosives on metal substrates ... continued below

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Balazs, G B; Cooper, J F & Lewis, P May 1, 1999.

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Description

Several applications of Direct Chemical Oxidation (DCO) relevant to the demilitarization of munitions are reported and evaluated here. The role of low levels of transition metal catalysts on rate of oxidation of organics by peroxydisulfate was investigated, because such materials are normally present in demilitarization wastes and could conceivably alter the rate or effectiveness of DCO. It was found that the presence of transition metal ions of Fe, Co, Cu, and Mn had little or no accelerating effect. Silver alone substantially increased oxidation rate, except where segregated as AgCl by free chloride. The destruction of trace explosives on metal substrates (mild steel, copper and brass) was found to be effective in basic media, where the peroxydisulfate prevented corrosion of the base metal (anodic chemical passivation) without impeding oxidation of the organic explosive. A method of detection of completeness of reaction (based on mass- spectroscopic detection of the intermediate oxidation product, formaldehyde) was proposed. Rate data on the destruction of 2,4,6-trinitrotoluene by acidified ammonium peroxydisulfate is reported. Appended to the report is a comprehensive bibliography on DCO.

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2.0 Megabytes pages

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  • Other Information: PBD: 1 May 1999

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  • Report No.: UCRL-ID-134365
  • Report No.: YN0100000
  • Grant Number: W-7405-ENG-48
  • DOI: 10.2172/12180 | External Link
  • Office of Scientific & Technical Information Report Number: 12180
  • Archival Resource Key: ark:/67531/metadc628519

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  • May 1, 1999

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  • June 16, 2015, 7:43 a.m.

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  • May 6, 2016, 2:22 p.m.

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Balazs, G B; Cooper, J F & Lewis, P. Direct chemical oxidation: applications to hazardous waste treatment in demilitarization, report, May 1, 1999; California. (digital.library.unt.edu/ark:/67531/metadc628519/: accessed September 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.