湿式氧化法处理活性红2BF的研究

采用湿式氧化法处理偶氮染料活性红2BF,考察了反应温度、反应时间、氧分压、KBrO3投加量以及pH等因素对降解效果的影响.结果表明,染料质量浓度为400 mg/L时,在温度为160℃、氧分压为0.8 MPa、n(KBrO3)∶n(活性红2BF)=0.5∶1、pH 4、反应时间为6 h的最佳条件下,活性红2BF由红色变为无色,TOC去除率为52%.

Study on the treatment of dye wastewater by wet air oxidation

Azo dye Reactive Red 2BF was degraded using method of wet air oxidation,the impact of which including temperature,reaction time,oxygen partial pressure,KBrO3 dosage and pH value was investigated.When temperature 160 ℃,oxygen partial pressure 0.8 MPa,pH 4,n(KBrO3)∶n(Reactive Red 2BF)=0.5∶1 was used for degradation,the red color of 2BF(400 mg/L) was degraded to colorless after reaction for 6 h,and the TOC removal rate was 52%.