电絮凝-催化氧化法去除染料工业废水COD的研究

Research on removal of COD in dyestuffs wastewater by electrolytic flocculation-catalytic oxidation method

我们对电絮凝 -催化氧化法处理染料工业废水COD进行了研究。实验结果表明 ,此方法对废水的COD具有良好的去除效果 ,并确定了相应的处理条件 :电解电压 4V ,电解时间 1.5h ,H2 O2 为 0 .6 % ,MO(含 75 %以上的TiO2 )为 2 .5g/L。平均COD去除率达到 77.5 %。电絮凝 -催化氧化法具有能耗低、操作简便等特点 。

Treatment of dyestuffs wastewater by electrolytic flocculation-catalytic oxidation method was studied. The results indicate that COD removal effect of dyestuffs wastewater is very good, and the optimum conditions of treatment are obtained:U=4V, t=1.5h, H 2O 2=0.6%, MO(including 75% TiO 2)= 2.5g/L. The removal rates of COD in wastewater can reach 77.5%. The method has some characteristics, including low energy consumption, easy operation. It lays a foundation for further deep treatment.