[1]李海华,王魁英,杨小丽,等.水下脉冲放电等离子体系统及其放电特性研究[J].郑州大学学报(工学版),2022,43(03):93-97.[doi:10.13705/j.issn.1671-6833.2022.03.020]
　LI Haihua,WANG Kuiying,YANG Xiaoli,et al.Research on Pulsed Discharge Plasma System Underwater and Its Discharge Characteristics[J].Journal of Zhengzhou University (Engineering Science),2022,43(03):93-97.[doi:10.13705/j.issn.1671-6833.2022.03.020]
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水下脉冲放电等离子体系统及其放电特性研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
43
期数:
2022年03期
页码:
93-97
栏目:
出版日期:
2022-04-10

文章信息/Info

Title:
Research on Pulsed Discharge Plasma System Underwater and Its Discharge Characteristics
作者:
李海华; 王魁英; 杨小丽; 王志琛; 张梦梦
华北水利水电大学环境与市政工程学院;

Author(s):
LI Haihua;  WANG Kuiying;  YANG Xiaoli;  WANG Zhichen;  ZHANG Mengmeng
School of Environmental and Municipal Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450046, China
关键词:
Keywords:
plasma discharge in liquid;  microporous ceramic electrode;  pulse power supply;  water treatment;  advanced oxidation
分类号:
O646. 9
DOI:
10.13705/j.issn.1671-6833.2022.03.020
文献标志码:
A
摘要:
采用 Ar / O2 混合气体作为放电气体,脉冲电源作为驱动电源以提高放电效率,采用微孔陶瓷电极以提高放电生成的活性物质的传质效果。 通过最低激发电压分析和光谱诊断·OH、H2 O2 、O3 等活性物质生成情况,分析不同放电条件下的靛蓝染料降解特性,系统研究了该水下放电系统的放电特性。 实验结果表明:该装置最低可实现 2. 1 kV 的低电压驱动水下大面积均匀放电,氧气占比对放电激发电压的影响最大光谱分析结果未能诊断到·OH 的特征光谱,但是显示有激发态的 H、O 等活性物质生成增加频率和电压有利于·OH、H2 O2 、O3 等活性物质的生成及染料脱色效率的增加增加气体流量有利于H2 O2 、O3 的生成,但是不利于·OH 的生成,整体上对染料脱色效率的影响不大随着氧气占比增加,O3生成量增加,但是·OH、H2 O2 及 最终 的染料脱色效率 先增加后降低。 综合考 虑各因素及成本问题, 系统最佳放电 条件:气体流量 Ar 为 160 mL / min、O2 为 40 mL / min、输出频率为 2 kHz、脉冲电源电压为 5 kV、脉宽为 1 μs,此条件下放电 1 0 min 后对靛蓝 二磺酸钠的 平均脱色 率达到 97. 8%。
Abstract:
In this study, the discharge efficiency and mass transfer effect were improved with the Ar/O2 mixed gas as discharge gas, a pulse power supply as driving power, and a specially designed microporous ceramic electrode.Discharge characteristics underwater were systematically studied by the analysis of the lowest excitation voltage, emission spectrum, active substance generation(such as·OH、H2O2、O3), and Indigo Carmine degradation characteristics.Experimental results showed that this system could achieve a large-area uniform discharge underwater with driving voltage as low as 2.1 kV, the O2 proportion had the greatest effect on the excitation voltage of the discharge.Although the attempt to find the characteristic spectrum of·OH failed, active substances such as H and O in excited state were detected in the spectral analysis results.The increase of frequency and voltage was conducive to the generation of active substances, such as OH, H2O2, O3, and the dye decolorization efficiency.The increase of gas flow was in favor of the H2O2 and O3 generation, but adverse to the·OH generation, and had little effect on the dye decolorization efficiency.As the O2 proportion increased, the generation amount of O3 increased gradually, but the·OH, H2O2 generation, as well as the decolorization efficiency increased firstly and then decreased.Discharge conditions and cost problems were comprehensively considered, the optimum condition of this discharge system was as follow: gas flow 200 sccm(Ar 80%，O2 20%), frequency 2 kHz, voltage 5 kV, pulse width 1 μs.The average decolorization rate of Indigo Carmine reached 97.8% in 10 minutes in this ideal discharge condition.

参考文献/References:

[1] CHEN Y D, LI Y, ZHANG X M, et al. Degradation of aqueous rhodamine B with gaseous streamer corona plasma [ J ] . IEEE transactions on plasma science, 2015, 43(3) : 828-835.

 [2] 商克峰, 王肖静, 鲁娜, 等. 介质阻挡放电脱色酸 性橙Ⅱ废水的动力学及脱色物化效应[ J] . 高电压 技术, 2018, 44(9) : 3009-3015.
 [3] SHAO T, WANG R X, ZHANG C, et al. Atmospheric-pressure pulsed discharges and plasmas: mechanism, characteristics and applications[ J] . High voltage, 2018, 3(1) : 14-20.
 [4] YEHIA S A, ZARIF M E, BITA B I, et al. Development and optimization of single filament plasma jets for wastewater decontamination[ J] . Plasma chemistry and plasma processing, 2020, 40(6) : 1485-1505. 
[5] LI S P, CHEN H, WANG X P, et al. Catalytic degradation of clothianidin with graphene / TiO2 using a dielectric barrier discharge ( DBD) plasma system [ J] . Environmental science and pollution research, 2020, 27(23) : 29599-29611.
 [6] NAVANEETHA PANDIYARAJ K, VASU D, PADMANABHAN P A, et al. Evaluation of influence of cold atmospheric pressure argon plasma operating parameters on degradation of aqueous solution of Reactive Blue 198 ( RB - 198) [ J] . Plasma science and technology, 2020, 22(5) : 116-127.
 [7] 刘亚韪, 周子凯, 王森, 等. 大气压空气针-水结构 脉冲气-液放电 特 性 研 究 [ J] . 强 激 光 与 粒 子 束, 2021, 33(6) : 74-81.
 [8] 孙楚, 李绍峰, WILLIAMS C, 等. 钛盐光度法测定 O3 / H2O2 高级氧化系统中的过氧化氢[ J] . 化学工 程师, 2011, 25(6) : 27-31, 37. 
[9] 吴建林, 袁莉, 毛学锋, 等. 用水杨酸为捕获剂测 定辉光放电等离子体中产生的羟基自由基[ J] . 西 北师范 大 学 学 报 ( 自 然 科 学 版 ) , 2007, 43 ( 3 ) : 53-56. 
[10] 宋飞龙, 金迪, 贾敏, 等. 大气压氩气环境下体积 介质阻挡放电光谱特性[ J] . 光谱学与光谱分析, 2018, 38(6) : 1675-1679.
 [11] 齐海成, 张每英. 脉冲重复频率对纳秒脉冲介质阻 挡放电的影响[ J] . 渤海大学学报( 自然科学版) , 2020, 41(4) : 346-350. 
[12] 李勇, 沈怀荣. 放电频率对放电气体活性粒子浓度 演化的 影 响 [ J] . 装 备 学 院 学 报, 2013, 24 ( 5) : 83-86. 
[13] 姜慧, 邵涛, 车学科, 等. 纳秒脉冲表面放电等离 子体影响因素的实验研究[ J] . 高电压技术, 2012, 38(7) : 1704-1710.
 [14] 叶齐政, 万辉, 李劲, 等. 流量对气液混合两相体 电流体 放 电 的 影 响 [ J ] . 高 电 压 技 术, 2002, 28 (9) : 42-43. 
[15] 高磊, 唐飞, 王晓浩, 等. 气流量对介质阻挡放电 离子源 电 离 效 率 的 影 响 [ J] . 传 感 器 与 微 系 统, 2007, 26(12) : 44-46. 
[16] ITO M, TAKAHASHI T, TAKITOU S, et al. Enhancement of liquid treatment efficiency by microwave plasma under flow-induced reduced pressure[J]. Japanese journal of applied physics, 2017, 56(2): 026201.
 [17] PAN J, TAN Z Y, LIU Y D, et al. Effects of oxygen concentration on atmospheric-pressure pulsed dielectric barrier discharges in argon / oxygen mixture[ J] . Physics of plasmas, 2015, 22(9) : 093515.

更新日期/Last Update: 2022-05-02