Study on water treatment effect of dispersion discharge plasma based on flowing water film electrode

作     者：Wenzheng Liu Ying Bao Xiaoxia Duan Jian Zhang 刘文正;包颖;段晓霞;张坚

作者机构：School of Electrical EngineeringBeijing Jiaotong UniversityBeijing 100044People's Republic of China School of ScienceBeijing Jiaotong UniversityBeijing 100044People's Republic of China Yangtze Normal UniversityChongqing 408100People's Republic of China 

出 版 物：《Plasma Science and Technology》 (等离子体科学和技术（英文版）)

年 卷 期：2021年第23卷第10期

页      面：168-178页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 07[理学] 08[工学] 070204[理学-等离子体物理] 0702[理学-物理学] 

基　　金：financially supported by National Natural Science Foundation of China(No.51577011) 

主　　题：water film electrode dispersive glow discharge plasma inhomogeneous electric field closed discharge space flowing water treatment 

摘      要：To improve the utilization rate of plasma active species,in this study,a closed non-uniform air gap is formed by a flowing water film electrode and a sawtooth insulating dielectric layer to realize the diffuse glow discharge in the ***,the electric field distribution characteristics of non-uniform air gap in the sawtooth dielectric layer are studied,and the influence of aspect ratio on the characteristics of diffuse discharge plasma is ***,the effects of wire mesh,the inclination angle of the dielectric plate,and liquid inlet velocity on the flow characteristics of the water film electrode are *** results show that the non-uniform electric field distribution formed in the sawtooth groove can effectively inhibit the filamentous discharge,and the 1 mm flowing water film is directly used as the electrode,and high-active plasma is formed directly on the lower surface of the water *** addition,a plasma flowing water treatment device is built to treat the methyl orange solution and observe its decolorization *** experimental results show that after 50 min of treatment,the decolorization rate of the methyl orange solution reaches 96%,which provides a new idea for industrial applications of wastewater treatment.