为了研究混合挥发性有机化合物(volatile organic compounds,VOCs)和单一VOC的降解特性,将气态四氯乙烯/间二甲苯混合物引入线-筒式放电反应器,利用脉冲高压进行降解实验.结果表明:电压28.6 kV时,混合物中四氯乙烯和间二甲苯的降解率比初始体积分数各为0.02%的2种单一物质分别降低33.0%和22.7%,与初始体积分数各为0.04%的2种单一物质相比,混合后四氯乙烯的降解率降低38.3%,而间二甲苯的降解率增加18.6%;混合物中间二甲苯的存在,改变了四氯乙烯的降解趋势;四氯乙烯比间二甲苯易矿化.
A wire-tube reactor initiated by pulsed high voltage was used to remove the volatile organic compounds(VOCs) mixture of tetrachloroethylene and 1,3-xylene to investigate the characteristics of their degradation.The results indicated that at the pulse voltage of 28.6 kV,the degradation efficiencies of tetrachloroethylene and 1,3-xylene in mixture were 33.0% and 22.7% lower than that in single pollutant with initial volume percentage of 0.02%,respectively.As compared with the single pollutant with initial volume percentage of 0.04%,the degradation efficiency of tetrachloroethylene in mixture decreased by 38.3%,while there was an increase of 18.6% for 1,3-xylene degradation.The presence of 1,3-xylene in mixture impacted the degradation characteristics of tetrachloroethylene.The mineralization of tetrachloroethylene was much easier than that of 1,3-xylene.