| Hydrous manganese dioxide adsorbing humic acid： controlling trihalomethane formation |
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| 引用本文： | 刘锐平 Nan Jun Li Xing Yang Yanling Xia Shengji Li Guibai.Hydrous manganese dioxide adsorbing humic acid： controlling trihalomethane formation[J].高技术通讯(英文版),2006,12(1):77-81. |
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| 作者姓名： | 刘锐平 Nan Jun Li Xing Yang Yanling Xia Shengji Li Guibai |
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| 作者单位： | [1]School of Municipal ＆ Environmental Engineering, Harbin Institute of Technology, Harbin 150090, P.R. China [2]College of Civil Engineering ＆ Architecture, Beijing University of Technology, Beijing 100022, P.R. China |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | Effectiveness of hydrous manganese dioxide (δMnO2) adsorbing humic acid under different conditions and its subsequent effects on trihalomethane (THMs) formation have been studied. Humicacid removal increases with higher pH and residual TOC decreases from 3.63 mg/L to 1.68 mg/L with pH increasing from 5.5 to 8.5 at 3.0 mg/L δMnO2; δMnO2 exhibits good potential of removing humic acid and the adsorbing potential as high as 1 mg TOC/mg δMnO2 is achieved; the fractional reduction of humic acid with higher molecular weight is about 30% higher than that with lower molecular weight. δMnO2 adsorption obviously reduces subsequent THMs formation; more significant THMs formation reduction is observed for humic acid with higher molecular weight. δMnO2 adsorption is an important factor that contributes to humic acid removal and THMs formation reduction in permanganate pre-oxidation process.
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| 关 键 词： | 腐殖酸 吸附 δMnO2 分子量 三卤甲烷 |
| 收稿时间： | 2004-09-30 |
Hydrous manganese dioxide adsorbing humic acid: controlling trihalomethane formation |
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| Liu Ruiping,Nan Jun,Li Xing,Yang Yanling,Xia Shengji,Li Guibai.Hydrous manganese dioxide adsorbing humic acid: controlling trihalomethane formation[J].High Technology Letters,2006,12(1):77-81. |
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| Authors: | Liu Ruiping Nan Jun Li Xing Yang Yanling Xia Shengji Li Guibai |
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| Abstract: | Effectiveness of hydrous manganese dioxide (δMnO2) adsorbing humic acid under different conditions and its subsequent effects on trihalomethane (THMs) formation have been studied. Humicacid removal increases with higher pH and residual TOC decreases from 3.63 mg/L to 1.68 mg/L with pH increasing from 5.5 to 8.5 at 3.0 mg/L δMnO2; δMnO2 exhibits good potential of removing humic acid and the adsorbing potential as high as 1 mg TOC/mg δMnO2 is achieved; the fractional reduction of humic acid with higher molecular weight is about 30% higher than that with lower molecular weight. δMnO2 adsorption obviously reduces subsequent THMs formation; more significant THMs formation reduction is observed for humic acid with higher molecular weight. δMnO2 adsorption is an important factor that contributes to humic acid removal and THMs formation reduction in permanganate pre-oxidation process. |
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| Keywords: | δMnO2 adsorption humic acid THMs formation molecular weight |
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