高压脉冲放电降解高浓度甲基橙溶液的过程强化研究  

Enhancement study of high concentration methyl-orange degradation via pulsed high-voltage discharge

作　　者：毛倩 李建华 MAO Qian;LI Jian-hua(Jincheng Institute of Technology,Jincheng 048000,China;Coal Chemical R&D Center of kailuan Group,Tangshan 063611,China)

机构地区：[1]晋城职业技术学院,山西晋城048000 [2]开滦集团煤化工研发中心,河北唐山063611

出　　处：《环境生态学》2019年第6期63-68,共6页Environmental Ecology

摘　　要：利用针-板式高压脉冲反应器,降解甲基橙溶液,通过研究放电频率、气源、甲基橙浓度等对甲基橙褪色率(DR)的影响,结果发现在甲基橙浓度大于100 mg/L时,反应器不能正常放电。分别采用紫外光催化技术和外加铁盐的方法对高压放电等离子技术进行强化,实现了对高浓度甲基橙溶液的降解。在甲基橙浓度为100 mg/L时,放电36 min,甲基橙的褪色率分别为48. 14%(紫外光催化)、63. 53%(Fe3+)和68. 53%(Fe2+)。Needle-plate pulsed high-voltage reactor was used to discolour the methyl-orange solution.The effects of frequency,gas source and concentration of methyl-red solution on the discolourization rate( DR) were investigated systematically.Results show that the pulsed high-voltage reactor can not work when the concentration of methyl-orange solution is above 100 mg/L. In order to discolour methylorange solution with higher concentration,photocatalytic technology and addition of iron salts were respectivley employed to enhance the pulsed high-voltage plasma technology. By this way,methyl-orange solution with a concentration of 100 mg/L was successfully discoloured by the pulsed high-voltage plasma technology,in which the discolourization rate is up to 48. 14%( UV-catal.),63. 53%( Fe3+) and 68. 53%( Fe2+) respectivley.

关 键 词：高压脉冲 放电等离子体 氧化锌 光催化 废水处理 

分 类 号：X703[环境科学与工程—环境工程]