Journal of Guangdong University of Technology ›› 2011, Vol. 28 ›› Issue (3): 15-17.

• Comprehensive Studies • Previous Articles     Next Articles

Factors Affecting H2O2 Formation over Gas Phase Pulsed Discharge in Water

  

  1. Institute of Electrostatics and Special Power, 2. School of Environmental Science and Technology, 3. Key Laboratory of Industrial Ecology and Environmental Technology of Education, Dalian University of Technology, Dalian 116024，China
  • Online:2010-10-06 Published:2010-10-06

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Abstract: Low temperature plasma technology can be used to treat the refractory biodegradable organic compound. There are many strong oxidizing active species (such as H2O2, ·OH, O3) in the plasma channel when voltage discharge is high. A needleplate reactor was used to investigate the generation of H2O2 in the pulsed discharge system. The effects of different experimental conditions on H2O2 generation, such as discharge voltage, gas flow rate, electrode gap and pH value, were studied. Experimental results show that as discharge voltage increases, the concentration of H2O2 in water increases; when the gas flow rate is 1.6 L/min, the concentration of H2O2 is the highest in water. The electric intensity increases as the electrodes gap decreases, and thus the东concentration of H2O2 increases.

Key words: gas phase pulse discharge; needleplate electrode; H2O2

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