Volume 46, Number 6, 2011ICRER 2011 – International Conference on Radioecology & Environmental Radioactivity: Environment & Nuclear Renaissance
|Page(s)||S487 - S490|
|Section||Mechanisms and Models|
|Published online||09 January 2012|
Estimation of speciation and distribution of long-lived radionuclides in soils after irrigation with contaminated well water
1 University of Bremen, Dept. of Physics, Bremen, Germany
2 BfS (Federal Office for Radiation Protection), Salzgitter, Germany
In this study it is shown how the behaviour of radionuclides in agricultural soils can be quantitatively estimated. The sorption of those nuclides onto soil particle surfaces is a key process which every predictive model has to take into account. This has been accomplished by implementing a component additivity (CA-) model into the well known geochemical code PHREEQC that includes the most important sorbents clay, amorphous iron oxide and organic matter. For uranium and cesium it is shown that model calculations are in excellent agreement with experimental data.
© Owned by the authors, published by EDP Sciences, 2011
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