Abstract:

An experimental study on the treatment of citric acid wastewater has been done,by using ozone oxidation method. The effects of wastewater treating time and ozone consumption on COD_Cr and chroma have been discussed. The results show that when the ozone consumption is 30 mg/L and the reaction time is 5 min,the COD_Cr removal rate is 18.4% and decoloration rate is up to 73.3%. Ozone has excellent decoloration ability and can improve the biodegradation of the wastewater. It provides warrant for further biochemical treatment.

Key words: ozone, oxidation, citric acid wastewater, decoloration

摘要：

通过实验研究臭氧氧化法处理柠檬酸废水,探讨了废水的处理时间、臭氧的消耗量对COD_Cr和色度去除的影响,得到了最佳工艺参数。实验结果表明,当臭氧消耗量在30mg/L,反应时间为5min时,废水的COD_Cr去除率为18.4%,色度去除率达73.3%。臭氧具有优良的脱色能力,同时提高了废水的可生化性,为进一步的生化处理提供了保证。

关键词: 臭氧, 氧化, 柠檬酸废水, 脱色

CLC Number: 

• X703.1