| Foam separation of chromium （VI） from aqueous solution |
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| 引用本文： | 矫彩山,丁岩.Foam separation of chromium （VI） from aqueous solution[J].上海大学学报(英文版),2009,13(3):263-266. |
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| 作者姓名： | 矫彩山 丁岩 |
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| 作者单位： | College;Nuclear;Science;Technology;Harbin;Engineering;University;Material;Chemical;China;National;Analytical;Center; |
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| 摘 要： |
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| 关 键 词： | 泡沫分离 水溶液 除铬 VI 十六烷基三甲基溴化铵 表面活性剂 正交试验 液体饲料 |
Foam separation of chromium (VI) from aqueous solution |
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| Cai-shan Jiao,Yan Ding.Foam separation of chromium (VI) from aqueous solution[J].Journal of Shanghai University(English Edition),2009,13(3):263-266. |
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| Authors: | Cai-shan Jiao Yan Ding |
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| Institution: | (1) College of Nuclear Science and Technology, Harbin Engineering University, Harbin, 150001, P. R. China;(2) College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China;(3) China National Analytical Center, Guangzhou, 510070, P. R. China |
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| Abstract: | Removal of chromium (VI) dissolved in water by intermittent foam separation was implemented with cetyl trimethy-ammonium bromide
as surfactant. The influence of various factors on removal efficiency was systematically studied. The removal efficiency has
a maximum value near pH 4.0; thus, most experiments were carried out at pH 4.0. The orthogonal experiment was conducted to
confirm the optimal operating parameters. The orthogonal experimental results show that when the liquid feed concentration
is 10 mg/L, the pH value of feed solution is 4.00, air flow rates 0.9 L/min, surfactant dosage is 300 mg/L, the maximum removal
efficiency of chromium (VI) reaches 97.80%, and condense multiple reaches 1 711. The kinetic test indicates that the foam
separation of chromium is a first-order process. The equivalent rate constant calculated from the slope is 0.406 4, and the
equivalent rate equation is obtained. |
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| Keywords: | foam separation chromium (VI) surfactant intermittently |
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