雾化介质阻挡放电联合电晕放电对染料溶液脱色研究

A Research on Decolorization of Dye Solution by Combination of Spraying Dielectric Barrier Discharge and Corona Discharge

实验将介质阻挡放电与电晕放电组合在一个反应器内,以靛蓝二磺酸钠溶液为实验废水,将高压电极上通入50Hz交流高压电,在常压空气中形成介质阻挡放电-电晕放电系统,放电产生的低温等离子体及其活性基团作用于染料分子。考察了电源电压、电极间距、处理时间对染料溶液脱色率和能量效率水平的影响,确定反应器工作状态为介质阻挡放电系统电极间距30mm、电晕放电系统电极间距25mm、电源电压20kV。

In this study,dielectric barrier discharge and corona discharge were combined in the same reactor.The test wastewater indigo carmine dye solution was connected with 50HZ high-voltage alternating current,so as to form a dielectric barrier discharge-corona discharge system at normal air pressure.Then the low-temperature plasma produced by discharge and its active groups acted on the dye molecules.Factors to affecting decolorization rate and the level of energy efficiency including the power voltage,electrode spacing and the processing time on the dye solution decolorization were studied.it concluded that the working conditions included the electrode separation of 30mm in dielectric barrier discharge system,the electrode separation of 25mm in corona discharge system and a 20-kV supply voltage.