活性炭纤维电极电解法处理墨绿B染料废水

Electrochemical Degradation of Wastewater Containing Greenish Black B on Activated Carbon Fiber Electrode

将铁丝缠绕在活性炭纤维(简称ACF)上制成电极,并在阴极鼓入空气,用电解生成的Fenton试剂处理墨绿B染料模拟废水.研究了电压、pH值、温度、空气流量、支持电解质的浓度等因素对染料脱色率的影响.结果表明,pH值越低,温度越高,处理效果越好,气流量的改变对于处理效果影响不大.室温时处理浓度为50mg·L-1的活性染料墨绿B,在实验电压为11V,中性条件下,无水硫酸钠的浓度为20g·L-1,通入空气流量为60L·min-1时,处理60min,色度去除率达到95%左右.55℃时,电解30min色度去除率就达到96%,60min时达到100%.

The treatment of wastewater containing greenish black B on Fe/ACF electrode with E-Fenton reagent was studied. It was shown that the treatment efficiency was better at lower pH value and higher temperature. Under the following conditions： room temperature, voltage is 11 V, pH value is 7, concentration of Na2 SO4 is 20 g · L^-1, atmosphere flow is 60 L · min ^-1, concentration of greenish black B is 50 mg · L^-1, reaction time is 60 min, the chromaticity removal rate of the dye in the experiment is over 95 %. At 55 ℃, the removal rate is 96 % at 30 min and 100 % at 60 min.