摘要
将CO_(2)和Ar的混合气体作为气液相等离子体的放电气氛,对水体中的难降解有机污染物四溴双酚S(TBBPS)进行处理。研究等离子体放电过程中CO_(2)转化、活性物质生成、气液相传质和TBBPS降解间的内在机理。研究表明,当放电功率为37 W,CO_(2)/Ar为1/5时,此时的CO_(2)转化率最高,为17.76%;TBBPS的降解率也最高,为94.24%。此外,通过对活性物质进行淬灭实验发现,·OH和^(1)O_(2)对能够快速有效处理四溴双酚S。利用液相色谱-质谱技术进行中间产物的分析,揭示了四溴双酚S在等离子体作用下的降解机理。
In this experiment,a gas mixture of CO_(2)and Ar was used as a gas-liquid-phase plasma discharge atmosphere for the treatment of 4,4'-sulfonylbis(TBBPS),a difficult-to-degrade organic pollutant in water.The intrinsic mechanisms between CO_(2)conversion,active substance generation,gas-liquid phase mass transfer and TBBPS degradation during plasma discharge were investigated.Results indicated that at a discharge power of 37 W with a CO_(2)/Ar ratio of 1∶5,both the highest CO_(2)conversion rate(17.76%)and TBBPS degradation rate(94.24%)were achieved.In addition,the quenching experiments of the active substances revealed that the pair of·OH and ^(1)O_(2)could degrade TBBPS quickly and effectively,and the analysis of the intermediate products using liquid chromatography-mass spectrometry techniques revealed the degradation mechanism of TBBPS under plasma action.
作者
程凯
王广佳
林保国
吴用
Cheng Kai;Wang Guangjia;Lin Baoguo;Wu Yong(Anhui Kexin Environmental Protection Co.Ltd.,Hefei 230031,Anhui,China;Jiangsu Water Pollution Prevention and Control Equipment Technology Development Co.,Ltd.,Wuxi 214200,Jiangsu,China;School of Resources and Environmental Engineering,Hefei University of Technology,Hefei 230009,Anhui,China)
出处
《绿色科技》
2025年第14期144-151,共8页
Journal of Green Science and Technology
关键词
等离子体
有机物降解
污染水处理
plasma
organic matter degradation
polluted water treatment
