Environmental catalysis and materials

Destruction of PCDD/Fs by gliding arc discharges

YAN Jian-hua , PENG Zheng , LU Sheng-yong , DU Chang-ming , LI Xiao-dong , CHEN Tong , NI Ming-jiang , CEN Ke-fa


Received February 07, 2007,Revised June 10, 2007, Accepted , Available online

Volume 19,2007,Pages 1404-1408

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PCDD/Fs have been become a serious issue because of their toxicological e ects 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℃ with or without the catalysis of CuCl2. From the experiment, we found that the destruction e ciency of PCDD/F homologues after gliding was discharge ranged from 25% to 79%. This result demonstrates that gliding arc plasma is an e ective 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 e ciency for PCDD/Fs.

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