千赫兹级介质阻挡放电对亚甲基蓝溶液的降解  

Degradation of methylene blue solution by kilo-hertz dielectric barrier discharge

作　　者：刘伊静 陈兴旺 崔浩栋 SSEKASAMBA Hakim 唐晓亮[1] 邱高[1] LIU Yijing;CHEN Xingwang;CUI Haodong;SSEKASAMBA Hakim;TANG Xiaoliang;QIU Gao(College of Science,Donghua University,Shanghai,China)

机构地区：[1]东华大学理学院,上海

出　　处：《东华大学学报（自然科学版）》2024年第5期168-175,共8页Journal of Donghua University(Natural Science)

基　　金：中央高校基本科研业务费专项资金(2232022A-07)

摘　　要：针对染料废水的色度大、成分复杂、盐度高、浓度高、降解难等特点,采用千赫兹级大气压介质阻挡放电对亚甲基蓝溶液模拟的染料废水进行处理,研究不同放电条件对亚甲基蓝降解率的影响。使用电流、电压波形图和等离子体发射光谱对介质阻挡放电进行诊断;通过吸光度计算降解率,分析不同放电间隙、针尖形状、放电气氛环境下的亚甲基蓝降解情况。结果表明,0.44 cm放电间隙、斜口针尖、更细的针管可以提高亚甲基蓝降解率,无须另外通入气体、直接以空气为放电气氛的选择更为高效和经济。千赫兹级介质阻挡放电可有效应用于亚甲基蓝溶液的降解,在处理染料废水方面有着广阔的应用前景。In view of the characteristics of dye wastewater,such as large chroma,complex composition,high salinity,high concentration,and difficult degradation,a kilo-hertz atmospheric pressure dielectric barrier discharge was used to treat the simulated dye wastewater of methylene blue solution,and the effect of different discharge conditions on the degradation rate of methylene blue was studied.The current,voltage waveform and plasma emission spectrum were used to diagnose dielectric barrier discharge.The degradation rate of methylene blue was calculated by absorbance,and the degradation of methylene blue under different discharge gap,tip shape and discharge atmosphere was analyzed.The results show that the degradation rate of methylene blue can be improved with 0.44 cm discharge gap,bevel tip and thinner needle tube,and it is more efficient and economical to use air as the discharge atmosphere without additional gas.The kilo-hertz dielectric barrier discharge can be effectively applied to the degradation of methylene blue solution,and has a broad application prospect in the treatment of dye wastewater.

关 键 词：低温等离子体 介质阻挡放电 千赫兹级 亚甲基蓝 降解 

分 类 号：O539[理学—等离子体物理]