on reactions. Because the derived enhancement factor is an implicit expression , it is inconvenient in application to simulating the degradation rates of organic pollutants in an ozonation reactor. In this paper a simple explicit expression of the enhancement factor (Cheng , 2000) relating to the Danckwerts surface renewal model in ozone absorption with a first order ozone self2decomposition and a second order ozonation or a series of parallel ozonation reactions ( ajA + Bj →pj Pj , j = 1 ,2 ⋯n) has been applied to predict the DCP destruction rate by ozonation in a semi2batch stirred tank reactor. 1 Mathematical model 1. 1 Destruction of one single organic pollutant in aqueous solution by ozonation When ozone is bubbled into a semi-batch stirred tank containing one organic pollutant solution , both gas and liquid phases can be assumed well mixed. The mass balance for ozone in the gas phase can be expressed as (Qiu , 1999) : where cA , G , cA , G,0 , cA , i and cA ,L represent the concentration of ozone in the gas bulk , in the influent stream of the reactor ,at the gas2liquid interface and in the liquid bulk respectively. H , uG , εG are the liquid height in the reactor , the velocity of gas phase and the gas holdup fraction , respectively , and t is the absorption time. kL as is the overall volumetric ozone physical mass transfer coefficient ( kL is the physical mass transfer coefficient , as is the specific interfacial a
（人工翻译）在由臭氧搅拌反应器中有机污染物的破坏模型.rar（文献资料翻译）
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