中文摘要：

利用电化学-臭氧耦合氧化体系降解了水中的对氯苯酚,从动力学角度探讨了耦合氧化体系降解有机物的协同作用机制.结果表明,电化学与臭氧耦合氧化体系降解4-CP具有明显的协同效果,900 s后,该耦合氧化体系对4-CP和COD的去除率分别为92.7%和64.9%;而单独电解与单独臭氧氧化对上述两者去除率的之和仅有69.7%和30.1%.氧还原产物H2O2浓度和光电流的测试结果表明,电化学-臭氧耦合氧化体系的协同机制包括两部分：即臭氧在阴极表面得到电子生成臭氧负离子;溶解氧在阴极表面发生还原反应生成H2O2.以上2个因素均能有效地促进体系.OH的形成.

英文摘要：

The oxidation system of electrolysis coupled ozonation（electrolysis-ozonation） was used to degrade 4-chlorophenol（4-CP）,and its mechanism was discussed on the basis of kinetic analysis.The experimental results indicated the electrolysis-ozonation system had a significant synergistic effect during degradation of 4-CP.For example,the electrolysis-ozonation had the 4-CP removal rate of 92.7% and the COD removal rate of 64.9% in 900 s,respectively;while electrolysis alone plus ozonation alone only had the 4-CP removal rate of 69.7% and the COD removal rate of 30.1% under the same conditions.The results of H2 O2 concentration analysis and photocurrent test showed that the synergistic mechanism of electrolysis-ozonation included two factors： ① production of.O 3-at the cathode;② H2 O2 generation resulting from reduction of dissolved oxygen.The above two factors led to generation of.OH in system effectively.