| 大孔树脂NKA-II对双酚A的吸附性能 |
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| 引用本文： | 汤茜,温福雪,迟赫.大孔树脂NKA-II对双酚A的吸附性能[J].化工环保,2013,33(1):10-14. |
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| 作者姓名： | 汤茜 温福雪 迟赫 |
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| 作者单位： | 1. 吉林师范大学;环境科学与工程学院，吉林;四平;136000；2. 大连理工大学;化工与环境生命学部，辽宁;大连;116024 |
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| 基金项目： | 吉林省教育厅“十二五”科学技术研究项目(吉教科合字[2011]第417号) |
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| 摘 要： | 研究了大孔树脂NKA-II对双酚A（BPA）的吸附性能，考察了吸附过程的动力学、热力学及树脂的再生性能。BPA溶液呈弱酸性，不需调节pH可直接进行吸附。BPA在大孔树脂NKA-II上的吸附过程可用准二级动力学方程很好地描述。树脂对BPA的吸附是吸热反应，符合Freundlich等温吸附方程，吸附过程属于可自发进行的物理吸附。BPA的吸附过程中同时存在着溶剂的解吸。大孔树脂NKA-II具有良好的重复使用性能，新树脂的平衡吸附量为10.44 mg/g，再生20次后平衡吸附量仍为10.43 mg/g。
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| 关 键 词： | 双酚A NKA-II大孔树脂 动力学 热力学 再生性能 |
| 收稿时间： | 2013-03-14 |
Adsorption Capability of Macroporous Resin NKA-Ⅱ for Biphenol A |
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| Tang Qian
,
Wen Fuxue
,
Chi He.Adsorption Capability of Macroporous Resin NKA-Ⅱ for Biphenol A[J].Environmental Protection of Chemical Industry,2013,33(1):10-14. |
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| Authors: | Tang Qian Wen Fuxue Chi He |
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| Affiliation: | 1.College of Environmental Science and Engineering，Jilin Normal University，Siping Jilin 136000，China；;2.Faculty of Chemical，Environmental and Biological Science and Technology，Dalian University of Technology，Dalian Liaoning 116024，China |
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| Abstract: | The adsorption capability of macroporous resin NKA-II for biphenol A(BPA) was studied. The kinetics and thermodynamics of BPA adsorption and the regeneration performance of the resin were investigated. Since the BPA solution is weak acidic，the adsorption of BPA can be carried out directly without pH adjustment. The adsorption process of BPA on NKA-II can be well described by pseudo-second order model. The adsorption is an endothermic reaction and accords with Freundlich isotherm adsorption equation. The adsorption process is spontaneous physical adsorption. With the adsorption of BPA，the solvent is desorbed simultaneously. The equilibrium adsorption capacity of the new resin is 10.44 mg/g，while that of the 20-time regenerated resin is 10.43 mg/g，it indicates that the macroporous resin NKA-II has a good performance of reusability. |
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| Keywords: | biphenol A macroporous resin NKA-Ⅱ kinetics thermodynamics regeneration performance |
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