Applications of direct chemical oxidation to demilitarization

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Research is reported concerning an aqueous process for oxidative destruction of solid- and liquid organic wastes, including ongoing work relevant to demilitarization This process uses acidified ammonium- or sodium peroxydisulfate and operates at ambient pressure and at temperatures of 80- 100 C The oxidant may be regenerated by electrolysis of the sulfate by- product at Pt anodes at roughly 80% coulombic efficiency, even in the presence of inorganic contaminants (e g , nitrate, phosphate or chloride) found in the original waste and entrained in the recycle stream Integral rate constants have been determined for the oxidation of diverse organic compounds ... continued below

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Cooper, J.F., LLNL June 1, 1998.

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Description

Research is reported concerning an aqueous process for oxidative destruction of solid- and liquid organic wastes, including ongoing work relevant to demilitarization This process uses acidified ammonium- or sodium peroxydisulfate and operates at ambient pressure and at temperatures of 80- 100 C The oxidant may be regenerated by electrolysis of the sulfate by- product at Pt anodes at roughly 80% coulombic efficiency, even in the presence of inorganic contaminants (e g , nitrate, phosphate or chloride) found in the original waste and entrained in the recycle stream Integral rate constants have been determined for the oxidation of diverse organic compounds at low concentrations (50 ppm, C), with rate constants (based on equivalents) of 0 004-O 02 miri Higher concentrations generally react at a 2-4X higher rate. The process has been carried through full- scale laboratory tests and initial pilot plant tests on chlorinated solvents, using a hydrolysis pretreatment Integral rate data indicate throughput rates of about 200 kg- C/m3-day The process may benefit the demilitarization efforts in various specialized applications destruction of solvents; destruction of trace propellants and explosives in shell casings remaining after bulk removal, destruction of red and pink waters, in situ remediation of soils at open pit burning/detonation sites; and as a regenerative filter for offgas carrying toxic or explosive substances.

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12 p.; Other: FDE: PDF; PL:

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OSTI as DE98058771

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  • 1998 global demilitarization symposium and exhibition, Coeur d`Alene, ID (United States), 11-14 May 1998

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  • Other: DE98058771
  • Report No.: UCRL-JC--130803
  • Report No.: CONF-980593--
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 310921
  • Archival Resource Key: ark:/67531/metadc685616

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  • June 1, 1998

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  • July 25, 2015, 2:20 a.m.

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  • Feb. 23, 2016, 1:05 p.m.

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Cooper, J.F., LLNL. Applications of direct chemical oxidation to demilitarization, article, June 1, 1998; California. (digital.library.unt.edu/ark:/67531/metadc685616/: accessed August 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.