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Electrochemical destruction of organics and nitrates in simulated and actual radioactive Hanford tank waste
Author(s) -
M.R. Elmore,
W.E. Lawrence
Publication year - 1996
Language(s) - English
Resource type - Reports
DOI - 10.2172/562855
Subject(s) - hanford site , radioactive waste , waste management , environmental science , radionuclide , high level waste , chemistry , engineering , quantum mechanics , physics
Pacific Northwest National Laboratory has conducted an evaluation of electrochemical processing for use in radioactive tank waste cleanup activities. An electrochemical organic destruction (ECOD) process was evaluated, with the main focus being the destruction of organic compounds (especially organic complexants of radionuclides) in simulated and actual radioactive Hanford tank wastes. A primary reason for destroying the organic species in the complexant concentrate tank waste is to decomplex/defunctionalize species that chelate radionuclides. the separations processes required to remove the radionuclides are much less efficient when chelators are present. A second objective, the destruction of nitrates and nitrites in the wastes, was also assessed. Organic compounds, nitrates, and nitrites may affect waste management and safety considerations, not only at Hanford but at other US Department of Energy sites that maintain high- level waste storage tanks

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