Destruction of PCDD/Fs by gliding arc discharges.

Abstract

PCDD/Fs have been become a serious issue because of their toxicological effects and associated adverse health implications. In this study, the gliding arc plasma was tested for treatment of polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs), which was synthesized from pentachlorophenol in atmospheric condition at 350 degrees C with or without the catalysis of CuCl2. From the experiment, we found that the destruction efficiency of PCDD/F homologues after gliding was discharge ranged from 25% to 79%. This result demonstrates that gliding arc plasma is an effective technology to decompose PCDDs/Fs in flue gas. A plausible degradation mechanism for PCDD/Fs by gliding arc was discussed. Finally, a multistage reactor structure of gliding arc was proposed to upgrade removal efficiency for PCDD/Fs.

• Authors: Jian-hua Yan, Zheng Peng, Sheng-yong Lu, Chang-ming Du, Xiao-dong Li, Tong Chen, Ming-jiang Ni, Ke-fa Cen
• Journal: Journal of environmental sciences (China) (J Environ Sci (China)) Vol. 19 Issue 11 Pg. 1404-8 ( 2007) ISSN: 1001-0742 [Print] Netherlands
• PMID: 18232239 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Benzofurans
• Dibenzofurans, Polychlorinated
• Gases
• Ions
• Polychlorinated Dibenzodioxins

Topics

• Benzofurans (chemistry, toxicity)
• Dibenzofurans, Polychlorinated
• Gases
• Incineration (methods)
• Ions
• Polychlorinated Dibenzodioxins (analogs & derivatives, chemistry, toxicity)
• Refuse Disposal (methods)
• Temperature