中文摘要：

采用臭氧氧化法对某厂染料废水生化出水进行深度处理，考察了废水初始pH值和臭氧气泡大小对废水处理效果的影响，研究了臭氧微气泡对气液传质的影响。结果表明，在pH2．5～11范围内，废水初始pH值越大，处理效果越好；加载微孔膜片后，臭氧气泡粒径变小，增大了臭氧的传质比表面积，延长了臭氧气泡在反应柱内的停留时间，强化了传质效果，处理废水的臭氧利用率可增大10％～30％，强化了臭氧氧化作用。加载5μm孔径的膜片相比无膜片的情况，COD去除率提高了近30％，TOC去除率提高了16％。

英文摘要：

The biochemical treatment effluent of dye-making wastewater from a factory was treated using ozone oxidation method in this work. Influences of initial pH and ozone bubble size on the wastewater tertiary treatment were studied. The relation of ozone micro-bubble size and gas-liquid mass transfer was also investigated. The experimental results indicated that COD removals increased with the increment of initial pH. The size of ozone bubbles decreased as mieroporous membrane was installed at the bottom of the reactor, which increased the specific interracial area of ozone and the retention time of ozone bubbles. Thus mass transfer was improved and the utilization ratio of ozone was increased by 10% - 30% , strengthening the oxidation effect of ozone. The installation of membrane with pore size of 5 μm resulted in COD and TOC increasing of 30% and 16% , respectively.