Degradation of aqueous phenol by high voltage pulsed corona

被引：0
|
作者：
Gao X. [1 ]
Qin P. [1 ]
Wu Z.-L. [2 ]
Luo Z.-Y. [1 ]
Cen K.-F. [1 ]
机构：
[1] State Key Laboratory of Clean Energy Utilization, Zhejiang University
[2] Department of Environmental Engineering, Zhejiang Gongshang University
来源：
Zhejiang Daxue Xuebao(Gongxue Ban)/Journal of Zhejiang University (Engineering Science) | 2010年 / 44卷 / 02期
关键词：
Aqueous discharge; Degradation; Phenol; Pulsed corona;
D O I：
10.3785/j.issn.1008-973X.2010.02.018
中图分类号：
学科分类号：
摘要：
The experiment of aqueous phenol degradation was conducted using high voltage pulsed corona discharge in a needle-cylindrical reactor. The influences of Fe2+ addition, pulsed voltage peak value, pulsed frequency, additional gas and pH value on the degradation of phenol were investigated. Results showed that phenol degradation rate firstly increased but then decreased with the increase of Fe2+ addition. The optimal concentration of Fe2+ was 0.015 mmol/L. The degradation rate of phenol improved with the increase of the pulsed voltage, the pulsed frequency, the flow of the additional gas and the pH value. 40 kV peak pulsed voltage, 180 Hz pulsed frequency, 6 L/min additional oxygen gas were the best economical reactive conditions, and the phenol degradation rate reached 84.8%. Alkaline environment was beneficial to the degradation of phenol. The species of additional gases greatly influenced the phenol degradation. The degradation rates of phenol from high to low were with additional gas of Ar, O2and N2. The degradation rate of aqueous phenol reached 98.1% with additional gas of Ar.
引用
收藏
页码：310 / 314
页数：4
相关论文
共 16 条
  • [1] Bian W.-J., Zhou M.-H., Lei L.-C., Degradation of o-CP by pulsed high voltage discharge in water, Journal of Chemical Industry and Engineering (China), 56, 1, pp. 152-156, (2005)
  • [2] Boev S., Yavoravsky N., Electro pulse water treatment, pp. 181-184, (1999)
  • [3] Abou-Ghazala A., Katsuki S., Bacterial decontamination of water by means of pulsed-corona discharges, IEEE Transactions on Plasma Science, 30, 4, pp. 1449-1453, (2002)
  • [4] He Z.-G., Liu J.-S., Cai W.-M., The important role of the hydroxyls ion in phenol removal using pulsed corona discharge, Journal of Electrostatics, 63, pp. 371-386, (2005)
  • [5] Huang H.H., Lu M.C., Chen J.N., Et al., Catalytic decomposition of hydrogen peroxide and 4-chlorophenol in the presence of modified activated carbons, Chemosphere, 51, pp. 935-943, (2003)
  • [6] Locke B.R., Sato M., Sunka P., Et al., Electro-hydraulic discharge and non-thermal plasma for water treatment, Industrial and Engineering Chemistry Research, 45, pp. 882-905, (2006)
  • [7] Shi F.-L., Yang S.-D., Ma J., Et al., Catalyzed oxidation of phenol in pulsed high voltage discharge process, Industrial Water Treatment, 25, 11, pp. 40-43, (2005)
  • [8] Neyens E., Baeyens J., A review of classic Fenton's per oxidation as an advanced oxidation technique, Journal of Hazardous Materials, B98, pp. 33-55, (2003)
  • [9] Mayank S., Bruce R.L., Degradation of chemical warfare agent stimulants using gas-liquid streamer discharge, Journal of Hazardous Materials, B137, pp. 1025-1034, (2003)
  • [10] Samaranayake W.J.M., Miyahara Y., Namihira T., Pulsed streamer discharge characteristics of ozone production in dry air, IEEE Transaction on Dielectrics and Electrical Insulation, 7, 2, pp. 254-260, (2000)
12