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《Environmental Science & Technology》 2012-12
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Removal Mechanism of CS_2 Odorous Gas with Dielectric Barrier Discharge

LI Dong-ni1,LU Jun2,WANG Xiao-hui1,HUANG Qin1,ZHU Cheng-zhu1(1.School of Resource and Environmental Engineering; 2.Centre of Analysis and Measurement,Hefei University of Technology,Hefei 230009,China)  
Removal of simulated CS2 gas was investigated with dielectric barrier discharge(DBD) technology.Influence of additive gases including air and N2,plasma power,and initial concentration of CS2 and discharge time on decomposition efficiency of CS2 was preliminary discussed.Results showed that the order of extra gases influencing degradation efficiency of CS2 as airN2.When input power was 63 W,initial mass concentration was 300 mg/m3 and residence time was 5.34 s,removal efficiency of CS2 reached 36.9% in N2 and 62.5% in air respectively.The degradation products was SO2,COS,CO and CO2 in presence of air,while the products were mainly elemental sulfur,small amounts of CO and CO2 in presence of N2.Degradation mechanisms of CS2 by DBD with additive gases of air and N2 were different,mainly collective action of high energy electrons and UV light in presence of N2,and O2 could promote CS2 deeply oxidized in presence of air.
【Fund】: 江苏省环境科学与工程重点实验室开放课题(ZD071202)
【CateGory Index】: X512
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