摘要：

作为纺织印染大国,如何实现印染废水中水回用是中国面临的重要课题。作者分别采用臭氧氧化法和超声波-活性炭法对已生化处理的印染废水深度处理。结果表明:臭氧氧化法可去除印染废水中75%的COD,使出水COD降至60 mg/L,超声波-活性炭联合法可去除印染废水中89.6%的COD,使出水COD降至25 mg/L,两种处理方法出水均能满足中水回用要求;通过比较,超声波-活性炭联合法优于臭氧氧化法。

关键词: 印染废水, 中水回用, 臭氧氧化, 超声波, 活性炭

Abstract:

As a large country having textile dyeing and printing industry，how to realize the recycle of regenerated water of printing and dyeing wastewater is an important research subject to China. Ozone oxidation and ultrasonicactivated carbon processes have been used respectively for the advanced treatment of the biochemically treated printing and dyeing wastewater. The results of experiment show that the removal rate of ozone oxidation process can reach 75% and COD of effluent decreases to 60 mg/L. The removal rate of COD of the ultrasonic-activated carbon combined process can reach 89.6% and COD of effluent decreases to 25 mg/L. Both of them can meet the requirements of regenerated water recycle. According to the comparison，the ultrasonic-activated carbon combined process is better than ozone oxidation process.

Key words: printing and dyeing wastewater, regenerated water recycling, ozone oxidation, ultrasonic, activated carbon

中图分类号: 

• X703.1