TcO2 oxidative dissolution by birnessite under anaerobic conditions: a solid–solid redox reaction impacting the environmental mobility of Tc-99

• Published in: Environmental science--processes & impacts Vol. 23; no. 6; pp. 844 - 854
• Main Authors: Stanberry, Jordan, Szlamkowicz, Ilana, Purdy, Lauren R, Anagnostopoulos, Vasileios
• Format: Journal Article
• Language: English
• Published: Cambridge Royal Society of Chemistry 24.06.2021
• Subjects: Anaerobic conditions; birnessite; Calcium; Calcium ions; Cations; Contamination; Dissolution; Divalent cations; Immobilization; Liability; Manganese; Minerals; Mobility; Oxidation; Oxidizing agents; Oxygen; pH effects; Redox reactions; Remediation; sorption; Technetium

Remediation efforts for the abatement of Tc-99 contamination in the environment have traditionally focused on the reduction of soluble pertechnetate (Tc(vii)O4−) to insoluble, and less mobile, technetium(iv) oxide (TcO2). Effectiveness of the reductive immobilization of Tc-99 depends on the suscepti...