3种催化剂催化氧化处理活性艳红废水研究

Research on Treatment of Reactive Brilliant Red Dye Wastewater by Chlorine Dioxide Catalytic Oxidation with Three Different Catalysts

研究了3种不同催化剂处理活性艳红废水的工艺条件。结果表明,二氧化氯+1#催化剂催化氧化处理活性艳红X-3B染料废水时,最佳pH值为8左右,二氧化氯投加量为600 mg/L废水,反应60 min后,COD去除率可达80.5%,药剂费为3.59元/kgCOD。二氧化氯+2#催化剂催化氧化处理活性艳红X-3B染料废水时,最佳pH值为10左右,二氧化氯投加量为1 000 mg/L废水,反应60 min后,COD去除率可达80.0%,药剂费为6.02元/kgCOD。二氧化氯+3#催化剂催化氧化处理活性艳红X-3B染料废水时,最佳pH值为10左右,二氧化氯投加量为1 000 mg/L废水,反应90 min后,COD去除率可达83.4%,药剂费为6.00元/kgCOD。对于活性艳红废水,1#催化剂的处理效果好且费用最低。

The ClO2 catalytic oxidation system with three different catalysts were studied for treating reactive brilliant dye wastewater. The results showed that, for No. 1 catalyst by adjusting the pH to 8 and adding 600 mgClO2/L wastewater, an active time of 60 minutes is the most effective and economical. The COD removal rate was 80.5 %, and the cost was 3.59 yuan/ kgCOD. For No. 2 catalyst by adjusting the pH to 10 and adding 1 000 mgClO2/L wastewater, an active time of 60 minutes was the most effective and economical. The COD removal rate was 80.0%, and the cost was 6.02 yuan/kgCOD. For No. 3 catalyst by adjusting the pH to 10 and adding 1 000 mgClO2/L wastewater, an active time of 90 minutes was the most effective and economical. The COD removal rate was 83.4%, and the cost was 6.00yuan/kgCOD. The No. 1 catalyst was effective and economical for treating reactive brilliant red wastewater.