| 不溶性腐殖酸吸附对硝基苯胺的动力学研究 |
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| 引用本文： | 吴应琴,周敏,马明广,张媛,陈慧. 不溶性腐殖酸吸附对硝基苯胺的动力学研究[J]. 水处理技术, 2007, 33(2): 14-17 |
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| 作者姓名： | 吴应琴 周敏 马明广 张媛 陈慧 |
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| 作者单位： | 西北师范大学化学化工学院,甘肃,兰州,730070;西北师范大学化学化工学院,甘肃,兰州,730070;西北师范大学化学化工学院,甘肃,兰州,730070;西北师范大学化学化工学院,甘肃,兰州,730070;西北师范大学化学化工学院,甘肃,兰州,730070 |
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| 基金项目： | 甘肃省自然科学基金;甘肃省教育厅科研项目 |
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| 摘 要： | 通过吸附动力学研究了不溶性腐殖酸吸附水中对硝基苯胺的机理。探讨了离子强度、共存有机物对对硝基苯胺的吸附行为的影响。结果表明，不溶性腐殖酸吸附对硝基苯胺的动力学曲线符合Elovich方程：吸附速率随对硝基苯胺初始浓度的增加而增加；吸附过程可用双速率扩散理论来解释；离子强度对对硝基苯胺的吸附影响不大，但共存有机物与对硝基苯胺存在竞争吸附。
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| 关 键 词： | 不溶性腐殖酸 对硝基苯胺 吸附动力学 离子强度 竞争吸附 |
| 文章编号： | 1000-3770（2007）02-014-04 |
| 修稿时间： | 2006-02-15 |
ADSORPTION KINETICS OF P-NITROANILINE ON THE INSOLUBILIZED HUMIC ACID |
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| WU Ying-qin,ZHOU Min,MA Ming-guang,ZHANG Yuan,Chen Hui. ADSORPTION KINETICS OF P-NITROANILINE ON THE INSOLUBILIZED HUMIC ACID[J]. Technology of Water Treatment, 2007, 33(2): 14-17 |
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| Authors: | WU Ying-qin ZHOU Min MA Ming-guang ZHANG Yuan Chen Hui |
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| Affiliation: | College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China |
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| Abstract: | The mechanism of p-nitroaniline adsorption on insolubilized humic acid in water was studied by the theory of adsorption kinetics. The effect of ionic strength and the coexisting organic compounds on adsorption of p-nitroaniline were also investigated. It was found that the kinetic adsorption of p-nitroaniline on insolubilized humic acid could be described by Elovinch equation. The rate of adsorption of p-nitroaniline on insolubilized humic acid increased with the initial concentration of p-nitroaniline increasing. The mechanism of p-nitroaniline adsorption could be interpreted with the dual-rate diffusive model. Furthermore, it Was showed that the ionic strength had little effects on the adsorptive capacity; but with the addition of coexisting organic compounds, the adsorptive capacity of p-nitroaniline on insolubilized humic acid decreased. |
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| Keywords: | insolubilized humic acid p-nitroaniline kinetics of adsorption ionic strength competitive adsorption |
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