Savannah River Nuclear Solutions, LLC

Battelle Savannah River Alliance, LLC

Savannah River National Solutions, LLC

Lucas M Angelette

Xin Xiao

Henry T Sessions

Paul R Beaumont

David W Babineau

Heather Mentzer

James E Klein

Robert L Rabun, Iii

Jared L Clark

John Kvartek

Methods and systems directed to the separation of tritium from an aqueous stream are described. The separation method is a multistage method that includes a purification stage during which tritium of a tritium-contaminated aqueous stream is adsorbed onto a cooled and wet separation phase, a regeneration stage during which the adsorbed tritium is exchanged with hydrogen in a gaseous stream to regenerate the separation phase and provide a gaseous stream with a high tritium concentration, and a third stage during which the tritium of the gaseous stream is separated from the gaseous stream as a gaseous tritium product.

Low temperature decontamination of tritiated water

Work area cleanup systems and methods are described for removing tritium from the atmosphere of a work area such as inert gas gloveboxes. Systems utilize a multi-column approach with parallel processing. Tritium of a tritium-contaminated stream is converted into tritiated water and adsorbed onto the separation phase of a first column as a second, parallel column can be simultaneously regenerated. The gaseous stream that exits the column during the regeneration phase can carry a high tritium concentration. The system can also include and a separation stage during which the tritium of the gaseous regeneration stream can be separated from the remainder of the regeneration product.

Tritium cleanup system and method

Methods and systems for the separation of isotopes from an aqueous stream are described as can be utilized in one embodiment to remove and recover tritium from contaminated water. Methods include counter-current flow of an aqueous stream on either side of a separation membrane. The separation membrane includes an isotope selective layer (e.g., graphene) and an ion conductive supporting layer (e.g., Nafion&#xae;). An electronic driving force encourages passage of isotopes selectively across the membrane to enrich the flow in the isotopes.

Isotope separation methods and systems

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Augusta, GA, United States of America

Lucas M Angelette