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Recommendations for the Disposal of Chemical Agents and Munitions (1994) / Chapter Skim
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Appendix D: Supercritical Water Oxidation and Wet Air Oxidation
Pages 154-158

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From page 154...
... Wet air oxidation has been in commercial use for more than 20 years. There are more than 200 plants in operation worldwide, working on a variety Of feedstocks: spent caustics, sludge from municipal and industnal wastewater, pulp and paper waste, metallurgical processing waste streams, etc.
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From page 155...
... The data illustrate why wet air oxidation leaves a large fraction of the organic carbon remoter ing as small molecules such as methyl alcohol; the higher temperature of supercritical water oxidation ensures a much higher level of destruction. For example Half-Life of Methanol 3,500-psi Pressure Temperature (°C)
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From page 156...
... CH3O\ ~0 HO O D _ _ _ _ \ pa/ CH3O -CH3 HO -CH3 DAMP Methylphosphonic ACid The acid product however was more resistant to attack; 10 percent of theoretical oxygen demand remained In a test at 520°C, 7 seconds residence time. Small scale pilot plant tests have recently been earned out on GB and VX, under supercntical water oxidation conditions (ARPA, 1993~.
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From page 157...
... also dissolved excessively in acidic chloride solution. A platinum liner was chosen for the pilot reactor used at the Illinois Institute of Technology Research Institute for the GB and VX tests (ARPA, 19931.
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From page 158...
... . Corrosion is expected to be a severe problem with both technologies, requiting control by suitable choice of material and/or control of pH.
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Key Terms

  • water oxidation
  • wet air
  • air oxidation
  • oxidation conditions
  • reaction rates

  • residence times
  • chemical agents
  • salts formed
  • aqueous phase
  • reaction rate

  • organic carbon
  • acetic acid
  • rate constants
  • pilot plant
  • illinois institute

  • organic material
  • oxidation leaves
  • technology research
  • processes operate
  • oxidize organic

  • destruction removal
  • metallurgical processing
  • platinum liner
  • pilot reactor
  • acidic reaction

  • methyl alcohol
  • chemical agent
  • supercritical fluid
  • dilute form
  • particularly useful


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