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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)

查看全文 作  者:Alexander [1]P.Mathews;Kishora [2]K.Panda 高影响力作者 机构地区:[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高影响力机构 出  处:《Chinese Journal of Chemical Engineering》索引2012年第20卷第3期,共9页高影响力期刊 基  金: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:臭氧发生器 动力学分析 反应区 多孔电极 氧化 吸收 有机物 管式反应器
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