Recovery of Cs-137 from electric arc furnace dust by lixiviation
Fabiola Monroy-Guzmán, Ricardo Soria Juárez, María Dolores Tenorio Castilleros
Case Studies in Chemical and Environmental Engineering · 2022
doi:10.1016/j.cscee.2022.100234 (opens in a new tab)
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Abstract
An orphan radioactive source of Cs-137 was inadvertently melted in an electric arc furnace, generating large volumes of electric arc furnace dusts contaminated with Cs-137 ( 137 Cs-EAFD). This work proposes the Cs-137 recovery from 137 Cs-EAFD by applying a leaching process and the Cs-137 reuse to prepare 137 Cs/ 137m Ba generators, not commercially available. The Cs-137 recovery efficiencies from 137 Cs-EAFD depended mainly on the chemical composition of the EAFD and the type of leachates. Oxide- and hydroxide-based minerals in the EAFD favor the adsorption of Cs-137 in basic medium. Cs-137 recovered is quantitatively adsorbed on cation-exchange resins.
Abstract licence: CC BY-NC-ND
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