Prediction of solid/liquid distribution coefficients of radiocaesium in soils and sediments. Part three: a quantitative test of a KID predictive equation |
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| Institution: | 1. Department of Geology and Earth Environmental Sciences, Chungnam National University, Daejeon 34134, South Korea;2. Ochang Center, Korea Basic Science Institute, Ochang, Chungbuk 28119, South Korea;1. Department of Earth and Environmental Sciences and The Earth and Environmental Science System Research Center, Chonbuk National University, 567 Bekjede-ro, Jeonju Chonbuk 561–756, Republic of Korea;2. Resources Management Division, Korindo Group, Jakarta 12780, Indonesia;3. Department of Earth and Environmental Sciences, Korea University, Seoul 136–701, Republic of Korea;4. Division of Oversea and New Business, Korea Coal Corporation, Wonju 220–170, Republic of Korea;5. Division of Earth and Environmental Sciences, Korea Basic Science Institute, Cheongju 363–883, Republic of Korea |
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| Abstract: | An equation is presented for predicting solid/liquid distribution coefficients of radiocaesium on soils and sediments (freshwater and marine). The equation is based on the value of the radiocaesium interception potential of the illitic frayed edge sites of the system and liquid phase composition (K, NH4 and Na). The predictive potential of the equation is tested for some 130 combinations of soil/sediment and water composition covering a three-order-of-magnitude range in KD137Cs values. On average, experimental KD137Cs values exceed predicted values by a factor of 1.62 ± 0.75. |
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