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| 表面改性活性炭对水中头孢拉定的吸附性能 | |
| 引用本文： | 孙瑞杰, 梅小乐, 胡翔. 表面改性活性炭对水中头孢拉定的吸附性能[J]. 环境工程学报, 2015, 9(11): 5255-5260. doi: 10.12030/j.cjee.20151120 |
| 作者姓名： | 孙瑞杰 梅小乐 胡翔 |
| 作者单位： | 1.北京化工大学化学工程学院, 北京 100029; 2.内蒙古农业大学水利与土木建筑工程学院, 呼和浩特 010018 |
| 基金项目： | 国家自然科学基金资助项目(51178022,51278022) |
| 摘 要： | 为了研究改性前后活性炭对水中低浓度头孢拉定的吸附效果,探讨了投加量、初始浓度、温度、pH值和时间对吸附去除率的影响。结果表明,经Fe(NO3)3溶液改性后,活性炭对头孢拉定的吸附能力得到加强;经Fe(NO3)3溶液浸渍改性获得的活性炭对头孢拉定的吸附,能很好地与Langmuir型等温方程拟合,线性相关数达0.98以上;吸附过程符合二级反应动力学描述,线性相关数达0.998以上。 |
| 关 键 词： | 表面改性活性炭 吸附 头孢拉定 反应动力学 |
| 收稿时间： | 2014-09-06 |
Adsorption of cefradine from aqueous solution by surface modified activated carbon |
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| Sun Ruijie, Mei Xiaole, Hu Xiang. Adsorption of cefradine from aqueous solution by surface modified activated carbon[J]. Chinese Journal of Environmental Engineering, 2015, 9(11): 5255-5260. doi: 10.12030/j.cjee.20151120 | |
| Authors: | Sun Ruijie Mei Xiaole Hu Xiang |
| Affiliation: | 1.College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China; 2.College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China |
| Abstract: | In this study, the effect of surface modified activated carbon on its adsorption of cefradine at low concentration was discussed, meanwhile, various factors were studied, including dosage, initial concentration, temperature, solution pH and adsorption time. The results showed that adsorption capacity of activated carbon treated by the Fe(NO3)3 solution was enhanced, and the adsorption isotherm had a close agreement with Langmuir equation, and the linear correlation coefficient was above 0.98. The second-order reaction kinetics was successfully used to describe the adsorption process, and the linear correlation coefficient was above 0.998. |
| Keywords: | surface modified activated carbon adsorption cefradine reaction kinetics |
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