| Dowex50W-X树脂吸附硫酸溶液中的锶 |
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| 作者姓名： | Meisam Hafizi Hossein Abolghasemi Morteza Moradi Saeed Alamdar Milani |
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| 作者单位： | 1. School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran;2. Science and Technology Research Institute, Tehran, Iran |
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| 摘 要： | In this study,strontium adsorption from sulfuric acid solution by different Dowex 50W-X ion exchange resins was investigated.Among these resins,Dowex 50W-X8 resin showed the maximum sorption of strontium from the aqueous solutions.The effect of pH,contact time,mass of resin,temperature,and concentration of interfering ions on strontium adsorption were evaluated to determine the optimum conditions of strontium sorption process.The kinetic models of sorption were analyzed using pseudo-first and pseudo-second order models.The results indicated that the pseudo-second order kinetic model was more appropriate than the other one.Moreover,the data obtained in this study were fitted into several sorption isotherm models and it was found that the Langmuir sorption isotherm shows the best fitting to the experimental data.
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| 关 键 词： | strontium adsorption ion exchange Dowex 50W kinetic model resin sorption isotherm model |
| 收稿时间： | 2010-7-9 |
| 修稿时间： | 2010-7-9
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Strontium adsorption from sulfuric acid solution by Dowex 50W-X resins |
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| Meisam Hafizi,Hossein Abolghasemi,Morteza Moradi,Saeed Alamdar Milani.Strontium adsorption from sulfuric acid solution by Dowex 50W-X resins[J].Chinese Journal of Chemical Engineering,2011,19(2):267-272. |
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| Authors: | M Hafizi H Abolghasemi M Moradi S Alamdar Milani |
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| Affiliation: | 1. School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran;2. Science and Technology Research Institute, Tehran, Iran |
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| Abstract: | In this study, strontium adsorption from sulfuric acid solution by different Dowex 50W-X ion exchange resins was investigated. Among these resins, Dowex 50W-X8 resin showed the maximum sorption of strontium from the aqueous solutions. The effect of pH, contact time, mass of resin, temperature, and concentration of interfering ions on strontium adsorption were evaluated to determine the optimum conditions of strontium sorption process. The kinetic models of sorption were analyzed using pseudo-first and pseudo-second order models. The results indicated that the pseudo-second order kinetic model was more appropriate than the other one. Moreover, the data obtained in this study were fitted into several sorption isotherm models and it was found that the Langmuir sorption isotherm shows the best fitting to the experimental data. |
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| Keywords: | strontium adsorption ion exchange Dowex 50W kinetic model resin sorption isotherm model |
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