Iodine sequestration using delafossites and layered hydroxides

The objective of this document is to report on the early success for sequestering 129I. Sorption coefficients (K d) for I− and IO3 − onto delafossites, spinels and layered metal hydroxides were measured and compared for their applicability to sequester 129I. The studies were performed using a dilute fluid composition representative of groundwater indigenous to the Yucca mountain area. Delafossites generally exhibited relatively poor sorption coefficients