考察了混凝-臭氧催化氧化-曝气生物滤池组合工艺对某工业园区污水厂沉砂池出水COD的去除效果。结果表明，当进水COD质量浓度在92.8~1 365 mg/L波动时，出水COD质量浓度平均降至57.5 mg/L，平均去除率为81.8%。臭氧催化氧化和曝气生物滤池单元对COD的平均去除率分别为35.9%和56.7%。在进一步优化工艺参数基础上，本组合工艺处理工业园区污水可以实现稳定达标排放。

COD removal performance of coagulation-catalytic ozonation-biological aerated filter (BAF) combining process in treating the effluent of grit chamber in the wastewater treatment plant at a certain industrial park is investigated.The results reveal that the average COD concentration in effluent by the combining process drops to 57.5 mg·L^-1 as the COD concentration in the influent is in the range of 92.8-1 365 mg·L^-1,representing an average COD removal rate of 81.8%.In comparison,the removal rates by the catalytic ozonation and BAF are 35.9% and 56.7%,respectively.Based on further optimizing the technological parameters,the stable up-to-standard discharge of the wastewater from industrial parks can be realized by the combining process.

史振宇(1985-),男,学士,工程师,研究方向为工业水处理,13488619567@163.com