| 活性炭纤维电吸附去除Cr(Ⅵ)的研究 |
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| 引用本文： | 王秀丽,盛义平,李争.活性炭纤维电吸附去除Cr(Ⅵ)的研究[J].燕山大学学报,2008,32(6). |
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| 作者姓名： | 王秀丽 盛义平 李争 |
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| 作者单位： | 燕山大学,环境与化学工程学院,河北,秦皇岛,066004 |
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| 摘 要： | 研究了活性炭纤维(ACF)吸附含铬模拟废水.实验结果表明,吸附平衡时间为60 min,最佳pH为2～4,最佳Cr(Ⅵ)初始浓度为25 mg/L,Cr(Ⅵ)含量与ACF的最佳比值为12.4 mgCr(Ⅵ)/g ACF.ACF对Cr(Ⅵ)的吸附符合Freundlich等温式.在最佳操作条件下,Cr(Ⅵ)的去除率可达98.72%.电吸附能够提高ACF对总铬的吸附率.循环电吸附/电脱附实验表明,电脱附能够明显提高总铬的脱附率,并且随着再生次数的增加,吸附率和脱附率降低的并不明显,所以在酸性条件下对ACF进行电脱附再生具有可行性.
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| 关 键 词： | 含铬废水 吸附 吸附等温线 再生 |
Study on adsorption of chromium by activated carbon fiber |
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| WANG Xiu-li,SHENG Yi-ping,LI Zheng.Study on adsorption of chromium by activated carbon fiber[J].Journal of Yanshan University,2008,32(6). |
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| Authors: | WANG Xiu-li SHENG Yi-ping LI Zheng |
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| Institution: | WANG Xiu-li1,SHENG Yi-ping1,LI Zheng1 (1. College of Environmental , Chemical Engineering,Yanshan University,Qinhuangdao,Hebei 066004,China) |
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| Abstract: | Adsorption of wastewater containing Cr (VI) on activated carbon fiber was studied. The results indicated that its equilibrium time was 60 min, the optimal pH was about 2.0~4.0, the optimal initial concentration of Cr (VI) was 25 mg/L, and the optimal ratio of content of Cr (VI) to mass of ACF was 12.4 mg Cr (VI) /g ACF. The adsorption isotherm of Cr (VI) on ACF follows the Freundlich isotherm model. Under the optimal experiment condition, the ratio of removal of Cr (VI) could achieved 98.72%. The electroche... |
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| Keywords: | ACF |
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