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环境科学学报(英文版) 2007
Destruction of PCDD/Fs by gliding arc dischargesKeywords: PCDD/Fs,destruction,gliding arc discharges,multistage reactor,Destruction,discharges,multistage,reactor,structure,upgrade,removal efficiency,gliding arc,degradation mechanism,flue gas,result,effective technology,destruction,catalysis,experiment,synthesized,pentachlorophenol,atmospheric,condition,PCDFs Abstract: PCDD/Fs have been become a serious issue because of their lexicological effects and associated adverse health implications. In this study, the gliding arc plasma was tested for treatment of polychlorinated dibenzo-p-dioxins (PCDDs) and pol ychlorinated dibenzofurans (PCDFs), which was synthesized from pentachlorophenol in atmospheric condition at 350℃ with or without the catalysis of CuCh-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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