Abstract: The efficiency of catalytic ozonation on treating refinery wastewater was investigated and a simulated activated sludge process was conducted to determine the biodegradability improvement. The experimental results show that the heterogeneous catalyst of copper loaded activated carbon combined ozonation is effective on degrading the organic pollutants and improving the biodegradability of refinery wastewater. When treating 4 000 mL wastewater, the average COD removal rate of 65.0% is attained while the BOD5/COD rate is improved from 0.13 to 0.28, under the optimal operational conditions of pH 11, ozone flow rate 40 L/h, catalyst quantity 200 cm3 and reaction time 40 min.

Key words: Catalytic ozonation, Copper loaded activated carbon, Refinery wastewater, Biodegradability

摘要： 利用臭氧催化氧化技术，开展降解炼油废水的实验研究。通过模拟活性污泥法验证污水生物降解性能的调控效果。结果表明：利用臭氧非均相催化技术可有效降解炼油废水中有机污染物且生物降解性能显著提高，ＣＯＤ平均去除率达６５．０％，ＢＯＤ５／ＣＯＤ从０．１３提高至０．２８；对于本实验装置，处理４　０００ｍＬ炼油废水最佳反应条件为臭氧流量４０Ｌ／ｈ，催化剂为２００ｃｍ３ 载铜活性炭，ｐＨ＝１１，反应时间40min。

关键词: 臭氧催化氧化 , 载铜活性炭 , 炼油废水 , 生物降解性能