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首页> 外文期刊>Water, Air, and Soil Pollution >The Kinetic Study of Cesium, Strontium, and Rubidium Radionuclide's Adsorption from Synthetic and Natural Wastes via the Mag-molecular Process
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The Kinetic Study of Cesium, Strontium, and Rubidium Radionuclide's Adsorption from Synthetic and Natural Wastes via the Mag-molecular Process

机译：铯，锶和Rub放射性核素通过分子过程从合成废物和天然废物中吸附的动力学研究

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摘要

In this study, the adsorption kinetic of cesium, strontium, and rubidium radionuclides was investigated using ferritin magnetic molecules. Kinetic investigation of synthetic and natural wastes was carried out and the results were compared. Pseudo first-order, pseudo second-order, Elovich, double-exponential, and intraparticle diffusion models were the kinetic models used in the fitting of experimental data. The kinetic study of synthetic waste revealed that the double-exponential model demonstrated excellent fitting. Coefficient of determination resulting from fitting of cesium, strontium, and rubidium radionuclide's adsorption results via the double-exponential model are 0.9938, 0.9905, and 0.9863, respectively. In the experiments conducted on natural wastes, too, all of the five kinetic models were investigated. Results indicated that the double-exponential model matched greatly with the experimental data, and cesium, strontium, and rubidium radionuclide's coefficients of determination were 0.9742, 0.9613, and 0.9442, respectively. Comparison of the results of natural and synthetic wastes showed that matching with the model and recovery of target elements were more prominent in experiments with synthetic waste (unicomponent) rather than natural waste (multicomponent).
机译：在这项研究中，使用铁蛋白磁性分子研究了铯，锶和rub放射性核素的吸附动力学。对合成和天然废物进行了动力学研究，并对结果进行了比较。伪一阶，伪二阶，Elovich，双指数和粒子内扩散模型是用于拟合实验数据的动力学模型。合成废物的动力学研究表明，双指数模型显示出极好的拟合性。铯，锶和rub放射性核素通过双指数模型拟合得到的测定系数分别为0.9938、0.9905和0.9863。在对自然废物进行的实验中，也对所有五个动力学模型进行了研究。结果表明，双指数模型与实验数据非常吻合，铯，锶和rub放射性核素的测定系数分别为0.9742、0.9613和0.9442。天然废物和合成废物结果的比较表明，在合成废物（单组分）而不是天然废物（多组分）的实验中，与模型的匹配和目标元素的回收更为突出。

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