用无声放电同时降解气态混合污染物四氯乙烯/间二甲苯  

Decomposition of Tetrachloroethylene and 1,3-xylene Mixture by Silent Discharge Processes

作　　者：李锻[1] 王洪昌[1] 张娣[1] 吴彦[1] 李杰[1] 李国峰[1] 

机构地区：[1]大连理工大学静电与特种电源研究所,辽宁大连116024

出　　处：《河北大学学报（自然科学版）》2007年第6期615-619,共5页Journal of Hebei University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(50678031)

摘　　要：将四氯乙烯,间二甲苯气态混合物同时引入无声放电反应器,加工频正弦交流高压对混合污染物进行放电分解实验.结果发现:与单一组分污染物的降解特性相比,混合气体中四氯乙烯的降解率变化较大,最大降解率由单独处理时的76%下降到27%,而间二甲苯的降解率基本保持不变,最大降解率可达90%左右;相同条件下,不锈钢棒高压电极对污染物的降解效果要略好于螺纹钢棒电极;3种电极间距对混合气体的降解效果依次为5 mm>7.5 mm>10 mm.AC high voltage power is introduce into dielectric barrier discharge reactor to investigate the decomposition character of tetrachloroethylene and 1,3-xylene mixture. The results indicate that compared with the decomposition characters of single-composition, the highest decomposition rate of tetrachloroethylene changes from 76 % to 27 % and the rate of 1,3-xylene is maintaining about 90 % in the processing of mixture; Better results are attained with stainless steel stick as the high voltage electrodes than screw thread steel stick; Three electrode gaps of the reactor show different decomposition ability as： 5 mm〉7.5 mm〉 10 mm.

关 键 词：气态VOCs混合物去除 无声放电 工频交流高压 

分 类 号：X511[环境科学与工程—环境工程]