, Volume 5, Issue 2, pp 85-89
Date: 05 Oct 2006

Iodine sequestration using delafossites and layered hydroxides

Rent the article at a discount

Rent now

* Final gross prices may vary according to local VAT.

Get Access

Abstract

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 (<35 mL/g). In contrast, the composition of the layered hydroxides significantly affects their ability to sorb I. Cu/Al and Cu/Cr layered hydroxide samples exhibit K d’s greater than 1000 mL/g for both I and IO3 .