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US 12,555,696 B2Granted
Methods for removing iodate from aqueous solutions
AssigneeThe Catholic University of America
InventorsIan L. Pegg, Miguel Penafiel
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Abstract
Methods and materials are described for the removal of iodate from aqueous solutions. The methods comprise reduction of the iodate to iodide and subsequent or concurrent removal of the iodide by sorption, ion exchange, or precipitation. These methods are effective for the removal of radioactive iodine from radioactive and nuclear wastes.
Claims13
A system comprising:
- a substrate to which a thiol group containing compound is attached to the substrate;
- and
- an aqueous solution,
- wherein the substrate is disposed in the aqueous solution, the aqueous solution being reactable with the substrate,
- wherein the aqueous solution comprises a radioactive iodine species, wherein the aqueous solution has a pH range of 2 to 10.5, and
- wherein the thiol group containing compound is at least one selected from the group consisting of L-cysteine enantiomer, DL-cysteine racemic mixture, thioglutathione or at least one thioglycolate selected from the group consisting of sodium thioglycolate and thioglycolic acid.
3 more elements
Dependencies are inferred from the claim text.