| 针-板式介质阻挡放电降解土壤中对硝基苯酚研究 |
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| 引用本文： | 鲁娜,张雪,李杰,王铁成,娄静,吴彦. 针-板式介质阻挡放电降解土壤中对硝基苯酚研究[J]. 环境科学与技术, 2012, 0(10): 50-52,57 |
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| 作者姓名： | 鲁娜 张雪 李杰 王铁成 娄静 吴彦 |
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| 作者单位： | 大连理工大学环境学院工业生态与环境工程教育部重点实验室;大连理工大学静电与特种电源研究所 |
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| 基金项目： | 国家自然科学基金项目(40901150) |
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| 摘 要： | 采用针-板式介质阻挡放电(DBD)产生低温等离子体降解土壤中对硝基苯酚(PNP),考察了放电电压、载气气量、土壤含水率以及土壤pH值对土壤中PNP降解效果的影响。结果表明:针-板式DBD对土壤中PNP有良好的降解效果。在PNP初始浓度400mg/kg,放电电压18 kV条件下,放电处理60 min,PNP降解率达到87.3%。增加放电电压和含水率均能提高降解率。不通入载气,也有较好的降解效果。碱性条件有利于PNP降解。
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| 关 键 词： | 介质阻挡放电(DBD) 土壤 对硝基苯酚 降解 |
Degradation of p-Nitrophenol in Soil Using Needle-Plate Dielectric Barrier Discharge |
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| LU Na,ZHANG Xue,LI Jie,WANG Tie-cheng,LOU Jing,WU Yan. Degradation of p-Nitrophenol in Soil Using Needle-Plate Dielectric Barrier Discharge[J]. Environmental Science and Technology, 2012, 0(10): 50-52,57 |
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| Authors: | LU Na ZHANG Xue LI Jie WANG Tie-cheng LOU Jing WU Yan |
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| Affiliation: | 1,2(1.Key Laboratory of Industrial Ecology and Environmental Engineering of Ministry of Education,School of Environment; 2.Institute of Electrostatics and Special Power,Dalian University of Technology,Dalian 116024,China) |
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| Abstract: | Non-thermal plasma produced by needle-plate dielectric barrier discharge(DBD) was developed to investigate the degradation of p-nitrophenol(PNP) in soil.Effects of discharge voltage,air flow rate,soil moisture content and soil pH on PNP degradation were evaluated.Experimental results showed that the needle-plate DBD system has a favorable removal efficiency for PNP.About 87.3% of PNP could be removed after 60min DBD decomposition with initial concentration 400 mg/kg and discharge voltage 18 kV.Increasing the discharge voltage and soil moisture content could both improve the degradation efficiency and a better PNP degradation was obtained without air flow rate.Alkaline soil was favorable for PNP removal. |
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| Keywords: | dielectric barrier discharge(DBD) soil p-nitrophenol(PNP) degradation |
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