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Destruction of PCDD/Fs by gliding arc discharges

Yan, J.-h.; Peng, Z.; Lu, S.-y.; Du, C.-m.; Li, X.-d.; Chen, T.; Ni, M.-j.; Cen, K.-f.

Journal of Environmental Sciences 19(11): 1404-1408

2007


ISSN/ISBN: 1001-0742
PMID: 18232239
DOI: 10.1016/s1001-0742(07)60229-0
Accession: 052512242

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.

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