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| 多孔电极臭氧发生器氧化废水中有机物的吸收和反应动力学分析(英文) | |
| 引用本文： | Alexander P.Mathews,Kishora K.Panda. 多孔电极臭氧发生器氧化废水中有机物的吸收和反应动力学分析(英文)[J]. 中国化学工程学报, 2012, 20(3): 417-425 |
| 作者姓名： | Alexander P.Mathews Kishora K.Panda |
| 作者单位： | 1. Department of Civil Engineering, Kansas State University, Fiedler Hall, Manhattan, KS 66506, USA;2. HDR Engineering, Inc., 3230 El Camino Real, Suite 200, Irvine, CA 92604, USA |
| 基金项目： | Supported in part by a research grant(BES-0209343) from the U.S.National Science Foundation |
| 摘 要： | A novel electrode design for the in situ generation of ozone in the reaction zone of a tubular reactor is described in this work.The ozone generator uses a porous inner electrode tube in the corona discharge assembly,and the ozone generated around the outer periphery of the porous tube diffuses into the tubular reactor and reacts with the contaminants in the fluid that is being treated.A mathematical model that includes absorption and second order reaction in the film is developed to describe ozonation kinetics of a contaminant dye in the tubular reactor.The model describes the experimental data for dye decolorization,oxidation byproducts,dissolved ozone,and ozone gas concentrations well.Model analysis indicates that the fast dye decolorization reaction occurs partly in the liquid film and partly in the bulk fluid.The model can be used in the selection of appropriate gas-liquid contactors for efficient oxidation of contaminants in effluents. |
| 关 键 词： | ozonation kinetics absorption and reaction ozone generator |
| 收稿时间： | 2012-02-17 |
Analysis of Absorption and Reaction Kinetics in the Oxidation of Organics in Effluents Using a Porous Electrode Ozonator |
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| Alexander P.Mathews, and Kishora K.Panda. Analysis of Absorption and Reaction Kinetics in the Oxidation of Organics in Effluents Using a Porous Electrode Ozonator[J]. Chinese Journal of Chemical Engineering, 2012, 20(3): 417-425 | |
| Authors: | Alexander P.Mathews Kishora K.Panda |
| Affiliation: | 1. Department of Civil Engineering, Kansas State University, Fiedler Hall, Manhattan, KS 66506, USA;2. HDR Engineering, Inc., 3230 El Camino Real, Suite 200, Irvine, CA 92604, USA |
| Abstract: | A novel electrode design for the in situ generation of ozone in the reaction zone of a tubular reactor is described in this work.The ozone generator uses a porous inner electrode tube in the corona discharge assembly,and the ozone generated around the outer periphery of the porous tube diffuses into the tubular reactor and reacts with the contaminants in the fluid that is being treated.A mathematical model that includes absorption and second order reaction in the film is developed to describe ozonation kinetics of a contaminant dye in the tubular reactor.The model describes the experimental data for dye decolorization,oxidation byproducts,dissolved ozone,and ozone gas concentrations well.Model analysis indicates that the fast dye decolorization reaction occurs partly in the liquid film and partly in the bulk fluid.The model can be used in the selection of appropriate gas-liquid contactors for efficient oxidation of contaminants in effluents. |
| Keywords: | ozonation kinetics absorption and reaction ozone generator |
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