电化学联用技术降解活性蓝19染料的研究

摘要

采用活性炭纤维（ACF）阴极电芬顿和Ti／RuO2－IrO2（DSA）阳极间接氧化联用技术（EF－IE）对活性蓝19（RB19）染料废水进行降解研究，考察了不同反应条件对EF－IE联用技术处理RB19染料废水降解过程动力学的影响，并采用响应面优化法对运行条件进行优化。结果显示，当采用ACF＋DSA时，RB19降解效果最好，降解过程符合准一级反应动力学模型；实验最佳条件是Fe2＋浓度0．92 mmol／L，Cl －浓度12．14 mmol／L，电流密度19．38 mA／cm2。 EI－IE联用技术是处理RB19的一种有效方法，通过响应面模型的研究，可以对EI－IE联用技术是处理RB19的结果进行预测。%Using activated carbon fiber ( ACF ) cathode Fenton and Ti/RuO2-IrO2 anode indirect oxidation (DSA) detection (EF-IE) of reactive blue 19 (RB19) dye wastewater degradation was studied , the different reac-tion conditions on the EF-IE detection processing RB 19 dye wastewater degradation to the influence of process dy-namics, was examined and the response surface optimization method is used to optimize the operating conditions . Results show that when using ACF +DSA, RB19 degradation effect is best , exact degradation process conforms to the first order reaction kinetics model; Experimental concentrations of Fe 2 +0.92 mM is the best condition , con-centration of Cl -12.14 mM, current density of 19.38 mA/cm2 .EI-IE coupling technique is an effective way to deal with RB19 , through the study , the response surface model of EI-IE coupling technique is to predict the results of processing RB19.