生物滴滤池处理甲苯废气研究  

Removal of toluene waste gas in trickling filters

作　　者：李清雪[1] 王冬云[1] 冯如彬[1] 

机构地区：[1]河北工程学院城建系,河北邯郸056038

出　　处：《河北建筑科技学院学报》2004年第1期1-3,15,共4页Journal of Hebei Institute of Architectural Science & Technology

基　　金：河北省教育厅基金项目(2002146)

摘　　要：本文以甲苯废气作为实验气体,以阶梯环和鲍尔环作为生物滴滤池的填料,探讨了生物滴滤池对含低浓度挥发性有机物(VOC)废气的处理效果、过程及影响因素。实验研究表明:在实验温度为20℃～30℃,进气中甲苯浓度200～1000mg/m3,容积负荷6.2～30.9mg//L.h,停留时间为117s,投配液量40L/h,生物滴滤池对甲苯的去除效率在87～100%。甲苯负荷、停留时间和进气浓度是影响甲苯去除效率的重要因素。A trickling filter was evaluated for the removal of toluene of waste gas which contains low concentration volatile organic compound (VOCs), using Ladder Annulus and Ball Annulus as the biological attachment medium. The results showed that the removal efficiency in 87～100% level were achieved for toluene volumetic loading rates up to 30.9 mg/L. h and 117s the empty-bed residence time (EBRT), the temperature ranged from 25℃ to 30℃, toluene concentration ranged from 100mg/ m^3 to 1000mg/ m^3, the liquid rate was 40L/h. The key influencing factors were toluene volumetic loading rate,empty-bed residence time and influent concentration.

关 键 词：挥发性有机废气(VOCs) 生物滴滤法 甲苯 生物降解 

分 类 号：X703[环境科学与工程—环境工程]