Modeling of organic pollutant destruction in a stirred tank reactor by ozonation

作     者：CHENG Jiang YANG Zhuo-ru CHEN Huan-qin KUO C.H. ZAPPI E.M. 

作者机构：College of Chemical EngineeringSouth China University of TechnologyGuangzhou 510641China Swalm School of Chemical EngineeringMississippi State UniversityMS 39762StarkvilleUSA 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2001年第13卷第4期

页      面：449-452页

核心收录：

学科分类：083001[工学-环境科学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 

基　　金：TheNationalNaturalScienceFoundationofChina (No .2 0 0 0 6 0 0 6 ) 

主　　题：dichlorophenol destruction ozonation stirred-tank reactor enhancement factor 

摘      要：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.