Hazardous or toxic waste destruction or containment – Destruction or containment of radioactive waste – By fixation in stable solid media
Reexamination Certificate
2005-09-28
2010-06-15
Lorengo, Jerry (Department: 1793)
Hazardous or toxic waste destruction or containment
Destruction or containment of radioactive waste
By fixation in stable solid media
C588S001000, C588S006000, C588S008000, C588S020000, C210S660000, C210S681000, C210S682000, C525S050000, C536S106000
Reexamination Certificate
active
07737320
ABSTRACT:
A method of decontaminating porous surfaces contaminated with water soluble radionuclides by contacting the contaminated porous surfaces with an ionic solution capable of solubilizing radionuclides present in the porous surfaces followed by contacting the solubilized radionuclides with a gel containing a radionuclide chelator to bind the radionuclides to the gel, and physically removing the gel from the porous surfaces. A dry mix is also disclosed of a cross-linked ionic polymer salt, a linear ionic polymer salt, a radionuclide chelator, and a gel formation controller present in the range of from 0% to about 40% by weight of the dry mix, wherein the ionic polymer salts are granular and the non cross-linked ionic polymer salt is present as a minor constituent.
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Finck Martha R.
Kaminski Michael D.
Mertz Carol J.
Lorengo Jerry
Olson & Cepuritits, Ltd.
Smith Jennifer A
UChicago Argonne LLC
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