Potential In Situ Remediation of 129-I and 99-Tc in Groundwater Associated with the F-Area Seepage Basins

Physical Characterization and Reactivity of the Uranyl Peroxide [UO2(η2-O2)(H2O)2]·2H2O: Implications for Storage of Spent Nuclear Fuels

“…129 I is a long-lived fission product (t 1/2 = 1.57 × 10 7 years) that directly affects metabolic processes and is a cause for serious environmental and toxicological concern. Moreover, 129 I contamination at the Savannah River 62 and Hanford 63 sites in the U.S. has been measured, and remediation techniques are required. 64 In the terrestrial environment iodide, iodine and iodate are the common oxidation states as well as organic iodine.…”

Groundwater Radioiodine: Prevalence, Biogeochemistry, and Potential Remedial Approaches

“…With a Henry's Law constant of 3 moles/L-atm (Parsley, 1970;Sander, 1999), the I 2 should be easily transferred from the dissolved phase to the vapor phase by air sparging. Denham (2002) suggested this as a possible remedy for 129 I contamination in an acidic water table plume at the Savannah River Site. Subsequent preliminary laboratory experiments showed that sparging dissolved iodide-bearing water with an ozone-air mixture successfully removed iodine from the system (Denham and Looney, 2007).…”

The kinetics of iodide oxidation by the manganese oxide mineral birnessite

“…These radioisotopes are components of nuclear waste and have been introduced into the environment through fallout from nuclear weapons tests and nuclear accidents such as Chernobyl. Release of radioisotopes of iodine into the seepage basins at the Savannah River Site has created a plume of 129 I contaminated groundwater (Denham, 2002). Contamination also exists at the 200-E and 200-W Areas of the Hanford Site (Riley and Zachara, 1992).…”