Electrochemical Decontamination of Painted and Heavily Corroded Metals

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The radioactive metal wastes that are generated from nuclear fuel plants and radiochemical laboratories are mainly contaminated by the surface deposition of radioactive isotopes. There are presently several techniques used in removing surface contamination involving physical and chemical processes. However, there has been very little research done in the area of soiled, heavily oxidized, and painted metals. Researchers at Los Alamos National Laboratory have been developing electrochemical procedures for the decontamination of bare and painted metal objects. These methods have been found to be effective on highly corroded as well as relatively new metals. This study has been successful in ... continued below

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Marczak, S.; Anderson, J. & Dziewinski, J. September 8, 1998.

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Description

The radioactive metal wastes that are generated from nuclear fuel plants and radiochemical laboratories are mainly contaminated by the surface deposition of radioactive isotopes. There are presently several techniques used in removing surface contamination involving physical and chemical processes. However, there has been very little research done in the area of soiled, heavily oxidized, and painted metals. Researchers at Los Alamos National Laboratory have been developing electrochemical procedures for the decontamination of bare and painted metal objects. These methods have been found to be effective on highly corroded as well as relatively new metals. This study has been successful in decontaminating projectiles and shrapnel excavated during environmental restoration projects after 40+ years of exposure to the elements. Heavily corroded augers used in sampling activities throughout the area were also successfully decontaminated. This process has demonstrated its effectiveness and offers several advantages over the present metal decontamination practices of media blasting and chemical solvents. These advantages include the addition of no toxic or hazardous chemicals, low operating temperature and pressure, and easily scaleable equipment. It is in their future plans to use this process in the decontamination of gloveboxes destined for disposal as TRU waste.

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Medium: P; Size: vp.

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INIS; OSTI as DE00760117

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  • 4th International Symposium and Exhibition on Environmental Contamination in Central and Eastern Europe, Warsaw (PL), 1998

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  • Report No.: LA-UR-98-3989
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 760117
  • Archival Resource Key: ark:/67531/metadc719341

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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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  • September 8, 1998

Added to The UNT Digital Library

  • Sept. 29, 2015, 5:31 a.m.

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  • April 21, 2016, 9:10 p.m.

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Marczak, S.; Anderson, J. & Dziewinski, J. Electrochemical Decontamination of Painted and Heavily Corroded Metals, article, September 8, 1998; New Mexico. (digital.library.unt.edu/ark:/67531/metadc719341/: accessed April 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.