中文摘要：

对臭氧及催化臭氧氧化降解2，4-滴丙酸（DCPP）的效率进行了研究，并利用竞争动力学法算得了DCPP与臭氧及羟基自由基的反应速率常数，参比有机物为硝基苯（NB）．结果表明，DCPP与臭氧的反应速率常数k03-DCPr．为（0．733±0．163）L·mol^-1·s^-1，与羟基自由基的kOH-DCPP为2．367×10^9L·mol^-1·s^-1．在单独臭氧和Mn（II）催化臭氧化降解DCPP过程中，基于上述结果计算所得的速率常数与实际所测的表观反应速率常数具有较好的吻合度．以上结果对臭氧化处理含DCPP废水具有很好的理论指导意义．

英文摘要：

Dichlorprop （DCPP） was degraded by both ozonation and Mn （II） catalytic ozonation, and the kinetics of both processes is discussed. The rate constants of DCPP reaction with ozone and OH radicals calculated by a competitive kinetics model, in which nitrobenzene （NB） was selected as the reference organic compound, were （0. 733 ± 0. 163 ） L·mol^-1·s^-1 and 2. 367 × 10^9 L·mol^-1·s^-1, respectively. The experimental apparent rate constants under kinetic control agree very well with the calculated ones. These results are of significance for ozonation of wastewater containing DCPP.