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Modeling of organic pollutant destruction in a stirred-tank reactor by ozonation
作者姓名:CHENG Jiang  YANG Zhuo-ru  CHEN Huan-qin  KUO C.H.  ZAPPI E.M
作者单位:1. College of Chemical Engineering,South China University of Technology,Guangzhou 510641,China; 2. Swalm School of Chemical Engineering,Mississippi State University,MS
基金项目:TheNationalNaturalScienceFoundationofChina (No .2 0 0 0 6 0 0 6 )
摘    要:IntroductionBecauseofthehighoxidationpotentialofozone(O3) ,ozonationhasbeenregardedasapromisingmethodfordrinkingandwastewatertreatment.AwiderangeoforganicpollutantsinwatercanbedegradedbyO3,O3combinedwithH2 O2 orUVlight,whichareknownasAdvancedChemicalOxidati…

关 键 词:dichlorophenol  destruction    ozonation    stirred-tank  reactor    enhancement  factor
收稿时间:2000/8/12 0:00:00
修稿时间:2000/12/10 0:00:00

Modeling of organic pollutant destruction in a stirred tank reactor by ozonation
CHENG Jiang,YANG Zhuo-ru,CHEN Huan-qin,KUO C.H.,ZAPPI E.M.Modeling of organic pollutant destruction in a stirred-tank reactor by ozonation[J].Journal of Environmental Sciences,2001,13(4):449-452.
Authors:CHENG Jiang  YANG Zhuo-ru  CHEN Huan-qin  Kuo CH  ZAPPI EM
Institution:1. College of Chemical Engineering, South China University of Technology,
2. Swalm School of Chemical Engineering, Mississippi State University,
Abstract:Destruction of organic contaminants in water by ozonation is a gas liquid process which involves ozone mass transfer and fast irreversible chemical reactions. Ozonation reactor design and process optimizing require the modeling of the gas liquid interactions within the reactor. In this paper a theoretical model combining the fluid dynamic and reaction kinetic parameters is proposed for predicting the destruction rates of organic pollutants in a semi batch stirred tank reactor by ozonation. A simple expression for the enhancement factor as our previous work has been applied to evaluate the chemical mass transfer coefficient in ozone absorption. 2,4 dichlorophenol (2,4 DCP) and 2,6 DCP or their mixture are chosen as the model compounds for simulating, and the predicted DCP concentrations are compared with some measured data.
Keywords:dichlorophenol destruction  ozonation  stirred  tank  reactor  enhancement factor
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