Reactivity of Peroxynitrite: Implications for Hanford Waste Management and Remediation

This project provides information relevant to: (i) the extent of radiation-induced accumulation of peroxynitrite in the Hanford waste and its roles in waste chemistry and (ii) the potential applications of peroxynitrite in remediation technologies. These studies include: (1) Determinations of the peroxynitrite formation pathways and their radiation yields. (2) Time-resolved mechanistic investigation of the direct radiation effects in solid nitrates and their concentrated solutions. (3) Evaluation of using peroxynitrite for oxidative removal of chromium for more efficient vitrification