| Adsorption of β-naphthalenesulfonic acid/sulfuric acid from their solution by weakly basic resin: equilibrium |
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| 作者姓名： | LI Chang-hai SHI Peng-fei |
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| 作者单位： | [1]DepartmentofChemicalEngineering,ChangchunUniversityofTechnology,Changchun130012,China [2]DepartmentofAppliedChemistry,HarbinInstituteofTechnology,Harbin150001,China |
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| 基金项目： | TheNaturalScienceFoundationofJilinProvince(No .990 337) |
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| 摘 要： | Experiments for single and bisolute competitive adsorption were carried out to investigate the adsorption behavior of β-naphthalenesulfonic acid(NSA) and sulfuric acid (H2SO4) from their solution at 25℃ onto weakly basic resin D301R. Adsorption affinity of sulfuric acid on D301R was found to be much higher than that of NSA. The data of single-solute adsorption were fitted to the Langmuir model and the Freundlich adsorption model. The ideal adsorbed solution theory(lAST) coupled with the single-solute adsorption models were used to predict the bisolute competitive adsorption equilibria. The lAST coupled with the Langmuir and the Freundlich model for sulfuric acid and NSA, respectively, yields the favorable representation of the bisolute competitive adsorption behavior.
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| 关 键 词： | β-萘硫酸 硫酸 弱数字 溶液吸收 IAST 废水处理 |
Adsorption of beta-naphthalenesulfonic acid/sulfuric acid from their solution by weakly basic resin: equilibrium |
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| LI Chang-hai,SHI Peng-fei.Adsorption of beta-naphthalenesulfonic acid/sulfuric acid from their solution by weakly basic resin: equilibrium[J].Journal of Environmental Sciences,2005,17(4):646-649. |
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| Authors: | LI Chang-hai and SHI Peng-fei |
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| Institution: | Department of Chemical Engineering, Changchun University of Technology, Changchun 130012, China. lichanghai2000@sina.com |
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| Abstract: | Experiments for single and bisolute competitive adsorption were carried out to investigate the adsorption behavior of beta-naphthalenesulfonic acid (NSA) and sulfuric acid (H2SO4) from their solution at 25 degrees C onto weakly basic resin D301R. Adsorption affinity of sulfuric acid on D301R was found to be much higher than that of NSA. The data of single-solute adsorption were fitted to the Langmuir model and the Freundlich adsorption model. The ideal adsorbed solution theory (IAST) coupled with the single-solute adsorption models were used to predict the bisolute competitive adsorption equilibria. The IAST coupled with the Langmuir and the Freundlich model for sulfuric acid and NSA, respectively, yields the favorable representation of the bisolute competitive adsorption behavior. |
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