针-板放电等离子体反应器结构参数对甲基橙脱色反应速率常数的影响  

Effects of Structure Parameters of Needle-Plate Discharge Plasma Reactor on Reaction Rate Constant of Methyl Orange Decolorization

作　　者：张延宗[1] 张哲玮[1] 邓仕槐[1] 张静[1] 代东决[1] 

机构地区：[1]四川农业大学资源与环境学院,四川雅安625014

出　　处：《化工环保》2011年第6期477-481,共5页Environmental Protection of Chemical Industry

基　　金：四川省科技厅应用基础研究项目(2010JY0040)

摘　　要：采用针-板放电等离子体反应器处理模拟甲基橙(MO)废水,研究了反应器结构参数对MO脱色反应速率常数的影响。实验得出最佳反应器结构参数:阳极为5根不锈钢针并联,针间距为17 mm,针电极长度为2 mm,电极间距为10 mm,O2流量为0.18 m3/h,阴极丝网目数为20目,在阳极上部设置5层间距为15 mm的不锈钢丝介质阻挡网。反应器在最佳结构参数下可使初始质量浓度为60 mg/L的MO模拟废水迅速脱色,处理12 min时脱色率已达97%;处理30 min时COD去除率达到41%。The needle-plate discharge plasma reactor was used to treat methyl-orange （MO）- containing wastewater. The effects of reactor structure parameters on the decolorization reaction rate constant of MO were studied. The experimental results show that the optimum reactor structure parameters are as follows： The discharge anode consists of 5 stainless steel needles in parallel connection with 17 mm of needle space and 2 mm of needle length, the electrode gap is 10 mm, the O2 flow is 0.18 m3/h; The cathode is a 20 mesh stainless steel wire meshwork; The dielectric barrier net is set up above the anode using 5-layer stainless steel wire with 15 mm of layer distance. Under these conditions, the simulated MO wastewater with 60 mg/L of initial mass concentration can be decolorized rapidly. The decolorization rate is 97% after treating for 12 min, and the COD removal rate is 41% after treating for 30 min.

关 键 词：针-板放电 等离子体反应器 结构参数 甲基橙 脱色 动力学 废水处理 

分 类 号：X703[环境科学与工程—环境工程]