| 1,2,4-trichlorobenzene decomposition using non-thermal plasma technology |
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| 作者姓名： | 竹涛 张星 马名烽 王礼锋 薛泽宇 侯益铭 叶泽甫 刘桐珅 |
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| 作者单位： | Institute of Atmospheric Environmental Management and Pollution Control;Shaanxi Key Laboratory of Lacustrine Shale Gas Accumulation and Exploitation（under planning）;Gemeng International Co.;Beijing Municipal Research Institute of Environmental Protection |
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| 基金项目： | the Major Science and Technology Projects of Shanxi Province(No.20181102017);the Hebei Province Central Guidance Local Science and Technology Development Special(No.19943816G);the Open Foundation of Shaanxi Key Laboratory of Lacustrine Shale Gas Accumulation and Exploitation(under planning);the Fundamental Research Funds for the Central Universities(No.2009QH03). |
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| 摘 要： | Non-thermal plasma(NTP)is regarded as a potential application for environmental pollution control due to its ability to remove pollutants.As a major precursor of dioxins,the influence of the parameters of 1,2,4-trichlorobenzene(TCB)decomposition using NTP technology was investigated through a series of experiments,including voltage,frequency,water content,initial concentration,flow rate,and oxygen content.The experimental results show that the energy injected into the NTP system has a positive correlation to voltage and frequency.Oxygen has the greatest influence on TCB decomposition.The optimal reaction condition was at 15 kV,1000 Hz,an initial concentration of 20 mg m^?3,a flow rate of 2 l min^?1,H2O at 4%,and O2 at 0%.Under this condition,the TCB removal efficiency could reach 92%.According to the generated product backstepping,the hydroxyl radical(·OH)plays an important role in TCB decomposition due to its strong oxidation,which participates in the dechlorination and oxidation reactions as free radicals,and the possible decomposition pathway of TCB by NTP is inferred from the identified byproducts.It is of great significance to investigate the influence of the parameters of TCB decomposition using NTP technology in order to provide references for industrial application.
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| 关 键 词： | NON-THERMAL plasma PULSE DISCHARGE influence PARAMETER 1 2 4-TRICHLOROBENZENE DECOMPOSITION removal efficiency |
| 收稿时间： | 2019-09-24 |
| 修稿时间： | 2019-12-12 |
1,2,4-trichlorobenzene decomposition using non-thermal plasma technology |
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| Tao ZHU,Xing ZHANG,Mingfeng MA,Lifeng WANG,Zeyu XUE,Yiming HOU,Zefu YE,Tongshen LIU.1,2,4-trichlorobenzene decomposition using non-thermal plasma technology[J].Plasma Science & Technology,2020,22(3):34011-78. |
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| Authors: | Tao ZHU Xing ZHANG Mingfeng MA Lifeng WANG Zeyu XUE Yiming HOU Zefu YE Tongshen LIU |
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| Affiliation: | (Institute of Atmospheric Environmental Management and Pollution Control,China University of Mining&Technology(Beijing),Beijing 100083,People’s Republic of China;Shaanxi Key Laboratory of Lacustrine Shale Gas Accumulation and Exploitation(under planning),Xi’an 710075,People’s Republic of China;Gemeng International Co.,Ltd,Taiyuan 030002,People’s Republic of China;Beijing Municipal Research Institute of Environmental Protection,Beijing 100037,People’s Republic of China) |
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| Abstract: | Non-thermal plasma (NTP) is regarded as a potential application for environmental pollution control due to its ability to remove pollutants. As a major precursor of dioxins, the influence of the parameters of 1,2,4-trichlorobenzene (TCB) decomposition using NTP technology was investigated through a series of experiments, including voltage, frequency, water content, initial concentration, flow rate, and oxygen content. The experimental results show that the energy injected into the NTP system has a positive correlation to voltage and frequency. Oxygen has the greatest influence on TCB decomposition. The optimal reaction condition was at 15 kV, 1000 Hz, an initial concentration of 20 mg m?3, a flow rate of 2 l min?1, H2O at 4%, and O2 at 0%. Under this condition, the TCB removal efficiency could reach 92%. According to the generated product backstepping, the hydroxyl radical (centerdotOH) plays an important role in TCB decomposition due to its strong oxidation, which participates in the dechlorination and oxidation reactions as free radicals, and the possible decomposition pathway of TCB by NTP is inferred from the identified by-products. It is of great significance to investigate the influence of the parameters of TCB decomposition using NTP technology in order to provide references for industrial application. |
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| Keywords: | non-thermal plasma pulse discharge influence parameter 1 2 4-trichlorobenzene decomposition removal efficiency |
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