O3-H2O2氧化法处理印染废水

采用O₃-H₂O₂氧化法对印染废水进行氧化处理，比较了O₃氧化法和O₃-H₂O₂氧化法对印染废水的处理效果，考察了初始废水pH、H₂O₂加入量、O₃流量和反应时间对废水的色度去除率和COD去除率的影响。实验结果表明：O₃-H₂O₂氧化法对废水的COD和色度的去除效果比O₃氧化法更好；在初始废水pH为11、H₂O₂加入量为13mmol/L、O₃流量为6g/h、反应时间为60min的最佳工艺条件下，处理后废水COD为61.50mg/L，COD去除率为95.73%，废水色度为5倍，色度去除率为99.75%，TOC为37.84mg/L，TOC去除率为85.10%，BOD₅为22.76mg/L，BOD₅去除率为90.20%，BOD₅/COD为0.37。

Treatment of Dyeing Wastewater by O3-H2O2 Oxidation Process

Dyeing wastewater was treated by O₃-H₂O₂ oxidation process. The treatment effects of O₃ oxidation process and O₃-H₂O₂ oxidation process were compared with each other,and the factors affecting the removal rates of chroma and COD were studied. The experimental results show that：The effect of O₃-H₂O₂ oxidation process on removal of chroma and COD is better than that of O₃ oxidation process；Under the optimum process conditions of initial wastewater pH 11,H₂O₂ dosage 13 mmol/L,O₃ flow 6 g/h and reaction time 60 min,the COD is 61.50 mg/L with 95.73% of removal rate,the chroma is 5 times with 99.75% of removal rate,the TOC is 37.84 mg/L with 85.10% of removal rate,the BOD₅ is 22.76 mg/L with 90.20% of removal rate,and the BOD₅/COD is 0.37.