Numerical analysis for characterizing the sorption/desorption of cesium in crushed granite |
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| Authors: | Chuan-Pin Lee Yin-Ming Kuo Shih-Chin Tsai Yuan-Yaw Wei Shi-Ping Teng Chun-Nan Hsu |
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| Affiliation: | (1) Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, 30013, Taiwan;(2) Department of Civil Engineering, Purdue University, West Lafayette, Indiana 47907, USA;(3) Nuclear Science and Technology Development Center, National Tsing Hua University, Hsinchu, 30013, Taiwan;(4) Department of Engineering and System Science, National Tsing Hua University, Hsinchu, 30013, Taiwan |
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| Abstract: | The reactive mechanism of cesium in crushed granite was demonstrated in this study through a numerical analysis or a model of the results of sorption/desorption kinetic tests. To employ such numerical analysis, this study applied batch kinetic tests with different solid to liquid ratios (1: 20 and 1: 30) for the characterization of sorption/desorption reaction of Cs and the calibration/validation of hypothesized reactive models. Based on the least square errors (LSE) between numerical analysis and results of batch tests, the two-site sorption models, which are corresponding to two decay constants (λ 1 and λ 2), might be more adequate than one-site sorption models in characterizing Cs sorption/desorption. Moreover, a two-site Langmuir kinetic model has been found to be capable of appropriately describing Cs sorption/desorption under test conditions. |
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