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SUPERABSORBING GEL FOR ACTINIDE, LANTHANIDE, AND FISSION PRODUCT DECONTAMINATION
SUPERABSORBING GEL FOR ACTINIDE, LANTHANIDE, AND FISSION PRODUCT DECONTAMINATION
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机译:用于丙烯酸,镧系元素和裂变产物去污的超吸收凝胶
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摘要
The present invention provides an aqueous gel composition for removing actinide ions, lanthanide ions, fission product ions, or a combination thereof from a porous surface contaminated therewith. The composition comprises a polymer mixture comprising a gel forming cross-linked polymer and a linear polymer. The linear polymer is present at a concentration that is less than the concentration of the cross-linked polymer. The polymer mixture is at least about 95% hydrated with an aqueous solution comprising about 0.1 to about 3 percent by weight (wt%) of a multi-dentate organic acid chelating agent, and about 0.02 to about 0.6 molar (M) carbonate salt, to form a gel. When applied to a porous surface contaminated with actinide ions, lanthanide ions, and/or other fission product ions, the aqueous gel absorbs contaminating ions from the surface.
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