Inferences About Radionuclide Mobility in Soils Based on the Solid/Liquid Partition Coefficients and Soil Properties |
| |
Authors: | Gustav Sohlenius Peter Saetre Sara Nordén Sara Grolander Steve Sheppard |
| |
Affiliation: | 1. Geological Survey of Sweden, Box 670, 751 28, Uppsala, Sweden 2. Swedish Nuclear Fuel and Waste Management Co. (SKB), Box 250, 101 24, Stockholm, Sweden 3. Facilia AB, Gustavslundsv?gen 151C, 167 51, Bromma, Sweden 4. ECOMatters Inc., Box 430, Pinawa, MB, R0E 1L0, Canada
|
| |
Abstract: | To assist transport modeling in assessments of the radiological impact of a geological repository for radioactive wastes, the mobility of various elements was studied in arable and wetland soils in the Forsmark region, Sweden. Pore water and total element contents were determined for five types of unconsolidated deposits (regolith), spanning a wide range of soil properties with respect to pH and organic matter content. Two soil depths were sampled to capture element mobility in regolith layers affected and unaffected by soil-forming processes. The solid/liquid partition coefficients (K d values) for most elements varied significantly among regolith types. For most elements, the observed variations in K d values could be explained by variations in soil properties. For many elements, mobility increased with decreasing soil pH. The results provide a significant addition of data on radionuclide retention in soils, taking account of soil properties and processes. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|