Compositions – Radioactive compositions
Patent
1987-06-02
1989-04-04
Terapane, John F.
Compositions
Radioactive compositions
106 89, 106 97, 106118, G21F 916, C04B 702, C04B 202, C04B 734
Patent
active
H00006254
ABSTRACT:
A composition and related process for disposal of hazardous waste streams containing fluoride in cement-based materials is disclosed. The presence of fluoride in waste materials acts as a set retarder and as a result, prevents cement-based grouts from setting. This problem is overcome by the present invention wherein calcium hydroxide is incorporated into the dry-solid portion of the grout mix. The calcium hydroxide renders the fluoride insoluble, allowing the grout to set up and immobilize all hazardous constituents of concern.
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Radioactive Waste Technology, the American Society of Mechanical Engineers, New York, 1986, Chapter 8 (pp. 317-330, 347-349.)
Stinton, D. P., et al., "Characterization of Hydrofracture Grouts for Rdionuclide Migration", Oakridge National Laboratory, Jul. '83.
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Moore, J. G., et al., "Strontium Leachability of Hydrofracture Grouts for Sludge-Slurries", Oakridge National Laboratory, May '86.
Moore, J. G., "Development of Cementitious Grouts for the Incorporation of Radioactive Wastes, Part I: Leach Studies", Oakridge National Laboratory, Apr. 1975.
Moore, J. G., "Development of Cementitious Grouts for the Incorporation of Radioactive Wastes, Part II: Continuation of Cesium and Strontium Leach Studies", Oakridge National Laboratory, Sep. 1976.
Tallent, O. K. et al., "Fixation of Waste Materials in Grouts, Part I: Empirical Correlations of Formulation Data", Oakridge National Laboratory, publication No. TM-9680/PI, Mar. 1986.
American Society for Testing and Materials 1984 Annual Book of ASTM Standards, vol. 04.01, publication C305-82, "Standard Method for Mechanical Mixing of Hydraulic Cement Pastes and Mortars of Plastic Consistency", pp. 255-258.
American Society for Testing and Materials, 1984 Annual Book of ASTM Standards, vol. 04.02, publication C192081, "Standard Methods of Making and Curing Concrete Test Specimens in the Laboratory", pp. 141-150.
McDaniel Earl W.
Sams Terry L.
Tallent Othar K.
Hamel Stephen D.
Hightower Judson R.
Terapane John F.
The United States of America as represented by the United States
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