Hazardous or toxic waste destruction or containment – Destruction or containment of radioactive waste – Chemical conversion to a stable solid for disposal
Reexamination Certificate
2007-09-18
2007-09-18
Johnson, Edward M. (Department: 1754)
Hazardous or toxic waste destruction or containment
Destruction or containment of radioactive waste
Chemical conversion to a stable solid for disposal
Reexamination Certificate
active
10366225
ABSTRACT:
A method (and concomitant kit) for treating a surface to reduce subsequent137Cs nuclide desorption comprising contacting the surface with a first cation-containing solution, the cation being one or more of Cs+, Rb+, Ag+, Tl+, K+, and NH4+, and contacting the surface with a second cation-containing solution, the cation being one or more of Cs+, Rb+, Ag+, Tl+, K+, and NH4+, thereby reducing amounts of radioactive cesium embedded in clays found on the surface.
REFERENCES:
patent: 4469628 (1984-09-01), Simmons et al.
patent: 4671898 (1987-06-01), Hultgren
patent: 5322644 (1994-06-01), Dunn et al.
Bennett, P.C., et al., “In-Service Analysis of Cask Contamination Weeping,”Sandia National Laboratories, 9thAnnual Symposium on the Packaging and Transportion of RadioactiveMaterials, pp. 247-254 (Jun. 1989).
Bennett, P.C., et al., “Scoping Experimental Analysis of Factors Affecting Cask Cntamination Weeping,”SAND90-2249 TTC-1014, (1990), no month.
Carlson, M., “Physico-Chemical Investigation of Surface Contamination on Nuclear Fuel Containers,”Exam project, Dept of Analytical Chem and Nucl Chem, UppsalaU, Spring Term 2000, no month.
Dzyombak, D.A., et al., “Surface Complexation Modeling—Hydrous Ferric Oxide,”Textbook: John Wiley & Sons, pp. 68-69 (1990), no month.
Fletcher, P., et al., “The Chemical Modelling of Clay/Electrolyte Interactions for Montmorillonite,”Clay Minerals, vol. 24, pp. 375-391 (1989), no month.
Jawarani, D., et al., “Critical Discussion of Relevant Physical Issues Surrounding the Weeping of Nuclear-Waste Casks,”J of Nuclear Materials, vol. 206, pp. 57=67 (1993), no month.
Tamura, T., “Sorption Phenomena Significant in Radioactive-Waste Disposal,”Underground Waste Management and Environmental Implications, Memoir No. 18, Amer Assn Petr Geo. (1972) pp. 318-330, no month.
Brady Patrick V.
Krumhansl James L.
McConnell Paul
Teter David M.
Johnson Edward M.
Sandia Corporation
Watson Robert D.
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