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纳秒脉冲放电处理有机染料废水的实验研究

仇聪颖 管显涛 刘振 朱安娜 闫克平

仇聪颖, 管显涛, 刘振, 等. 纳秒脉冲放电处理有机染料废水的实验研究[J]. 强激光与粒子束, 2020, 32: 025010. doi: 10.11884/HPLPB202032.190390
引用本文: 仇聪颖, 管显涛, 刘振, 等. 纳秒脉冲放电处理有机染料废水的实验研究[J]. 强激光与粒子束, 2020, 32: 025010. doi: 10.11884/HPLPB202032.190390
Qiu Congying, Guan Xiantao, Liu Zhen, et al. Degradation of organic dyes by nanosecond pulsed discharge plasma[J]. High Power Laser and Particle Beams, 2020, 32: 025010. doi: 10.11884/HPLPB202032.190390
Citation: Qiu Congying, Guan Xiantao, Liu Zhen, et al. Degradation of organic dyes by nanosecond pulsed discharge plasma[J]. High Power Laser and Particle Beams, 2020, 32: 025010. doi: 10.11884/HPLPB202032.190390

纳秒脉冲放电处理有机染料废水的实验研究

doi: 10.11884/HPLPB202032.190390
基金项目: 国家重点研发项目(2017YFC0307403)
详细信息
    作者简介:

    仇聪颖(1994—),男,硕士研究生,研究方向为等离子体水处理应用;21728028@zju.edu.cn

    通讯作者:

    刘 振(1978—),男,副教授,研究方向为脉冲功率和等离子体的应用;zliu@zju.edu.cn

  • 中图分类号: X791

Degradation of organic dyes by nanosecond pulsed discharge plasma

  • 摘要: 随着印染行业的快速发展,印染废水的排放与日俱增。由于废水中的有机物具有成分复杂、难以降解的特点,若未经有效处理直接排放,会对生态环境造成严重的污染和危害。试验设计了一种多针-网式反应器循环处理有机组分为酸性红73(AR73)的模拟废水,其采用自行设计的基于TLT(Transmission Line Transformer)的高压重频纳秒脉冲电源驱动。电源可以产生峰值电压为50 kV,脉宽40 ns,上升沿20 ns的纳秒脉冲信号,工作频率可达500 Hz。试验考察了峰值电压、放电频率、染料初始质量浓度及作用时间等因素对AR73降解效果的影响。为评价处理效果,采用紫外分光光度法分别测量了废水中剩余染料浓度、过氧化氢浓度等指标。结果表明,在初始浓度30 mg/L,循环流量3.4 L/min,放电间距30 mm,峰值电压44.26 kV,放电频率200 Hz条件下处理30 min,AR73降解率可以达到83.20%,单次脉冲注入能量为11.73 mJ,过氧化氢浓度为47.36 μmol/L,反应器脱色能效(G50)可以达到31.07 g·kW−1·h−1。增大放电电压可以进一步提高AR73降解率,溶液中活性物质浓度提高,但是能量效率有所下降。
  • 图  1  电晕放电试验装置示意图

    Figure  1.  Schematic diagram of the corona discharge reactor experimental setup

    图  2  水处理反应器结构示意图

    Figure  2.  Schematic diagram of the reactor for water treatment

    图  3  酸性红73标准曲线

    Figure  3.  Standard curve of AR73

    图  4  电压与电流波形

    Figure  4.  Typical waveforms of output voltage and current

    图  5  放电图片

    Figure  5.  Typical photograph of the corona discharge

    图  6  不同交流输入下储能电容电压和放电峰值电压

    Figure  6.  Charging voltage and peak voltage with different AC input

    图  7  不同放电电压下酸性红73降解率随时间的变化曲线

    Figure  7.  Evolution of AR73 degradation efficiency with treatment time under various discharge voltages

    图  8  不同放电电压下过氧化氢浓度随时间的变化曲线

    Figure  8.  Evolution of H2O2 concentration with treatment time under various discharge voltages

    图  9  不同放电电压下AR73降解率随能量密度变化曲线

    Figure  9.  Effects of Esi on degradation of AR73 under various discharge voltages

    图  10  不同放电频率下酸性红73降解率随时间的变化曲线

    Figure  10.  Evolution of AR73 degradation efficiency with treatment time under various discharge frequencies

    图  11  不同频率下的单次脉冲能量

    Figure  11.  Relation between energy per pulse and with discharge frequency

    图  12  不同放电频率下过氧化氢浓度随时间的变化曲线

    Figure  12.  Evolution of H2O2 concentration with treatment time under various discharge frequencies

    图  13  不同放电频率下AR73降解率随能量密度变化曲线

    Figure  13.  Effects of Esi on degradation of AR73 under various discharge frequencies

    图  14  不同初始质量浓度下酸性红73降解率随时间的变化曲线

    Figure  14.  Effects of initial concentration on the degradation of AR73 with treatment time

    图  15  不同初始质量浓度下能量效率随时间的变化曲线

    Figure  15.  Effects of initial concentration on the energy efficiency with treatment time

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出版历程
  • 收稿日期:  2019-09-30
  • 修回日期:  2019-11-01
  • 刊出日期:  2019-12-26

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