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- W43281991 abstract "Experiments were conducted to test the effectiveness of a vibratory grinder (Roto-Finish - Spiratron ST-1) for the separation of transuranic elements such as plutonium from contaminated soil. Four scrubbing solutions were tested to add varying degrees of chemical action to the physical action of the attrition grinder. The scrub solutions were: water, aqueous NaOH - pH 12.5 (high pH solution), 2% HNO/sub 3/, 0.2% HF, 5 wt % Calgon, 2 vol % pine oil (weak acid plus surfactant), and 2N HCl (strong acid). All four scrub solutions reduced the greater than 35 mesh portion of the test soil from approximately 7000 dpm/g /sup 239/Pu to approximately 30 dpm/g or less. The weak acid/surfactant and the strong acid solutions produced the best decontamination. The high pH, weak acid/surfactant, and strong acid solutions all appeared to increase the rate of decontamination as compared to water only. These experiments decontaminated 85% of the Rocky Flats soil tested to levels which could meet EPA screening levels for unrestricted use." @default.
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- W43281991 date "1982-08-13" @default.
- W43281991 modified "2023-09-24" @default.
- W43281991 title "Separation of transuranic radionuclides from soil by vibratory grinding" @default.
- W43281991 hasPublicationYear "1982" @default.
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