Nuclear waste repository designs require implementation of backfill buffer materials for containment of radionuclides. Technetium, a fission product environmentally mobile as TcO4-, is of concern given the long-lived nature of 99Tc. Commercially available functionalized clays have previously been investigated for the immobilization of Tc under conditions found at the Hanford Site (Washington State, U.S.A). The current work focuses on intercalation of clay with metal, alkylammonium and thiol compounds for the design of potential backfill buffer materials for Tc sequestration. The comparison of synthesized materials and commercially available products will be discussed.

Comparative study of clay materials for the sequestration of technetium

ACS Fall 2021

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.