Abstract
The leaching of Ra-226 from U mill tailings consolidated with cement and cement plus clay and/or peat may be described by a plane source diffusion model or a simultaneous first order reaction and diffusion model. A useful quantitative measure of the effectiveness of the consolidation process is the magnitude of the effective diffusion coefficient relative to that of the unconsolidated tailings material. The lowest effective diffusion coefficient upon consolidation was for consolidation with cement and peat.
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Nathwani, J.S., Phillips, C.R. Leachability of ra-226 from uranium mill tailings consolidated with naturally occurring materials and/or cement. Water Air Soil Pollut 14, 389–402 (1980). https://doi.org/10.1007/BF00291851
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DOI: https://doi.org/10.1007/BF00291851