扩体错流式生物滴滤床净化甲苯废气  

Purification of toluene contained waste gas by enlarged cross-flow bio-trickling filter

作　　者：章小军[1] 李坚[1] 刘佳[1] 彭淑婧[1] 刘春敬[1] 金毓峑[1] 

机构地区：[1]北京工业大学环境与能源工程学院,北京100124

出　　处：《环境污染与防治》2009年第11期62-64,77,共4页Environmental Pollution & Control

摘　　要：采用自行设计制作的扩体错流式生物滴滤床,以甲苯为目标污染物、陶粒为填料、恶臭假单胞菌为菌源进行实验,研究了扩体错流式生物滴滤床的挂膜启动情况、甲苯进口浓度、停留时间对净化效率的影响。结果表明:(1)环境温度为17～23℃,扩体错流式生物滴滤床在10d内完成挂膜启动,比传统生物滴滤床缩短了4d。(2)甲苯净化效率随进口浓度的增加而逐渐下降。当甲苯进口质量浓度为1100mg/m3时,净化效率为95%;当甲苯进口质量浓度维持在1100～1200mg/m3时,随停留时间的缩短,甲苯净化效率下降。(3)当停留时间分别为94、63、48s时,甲苯净化效率分别为87%～92%、70%～74%、60%～62%。The toluene degraded bacterial was inoculated on an enlarged cross-flow bio-trieking filter with Pseudomonas putida as cultured strains. The stat-up process of the filter was studied and effects of inlet concentration and residence time on toluene removal capacity were investigated. The results indicated that given the surrounding temperature of 17 ℃ to 23 ℃ ,the tested filter completed start-up process in 10 d,which was 4 d earlier than that of traditional hio-trickling filter. With inlet concentration of less than t 100 mg/m3 ,95 % of toluene was removed,while the removal efficiency was decreased with increasing of inlet concentration, when the inlet toluene concentration ranged from 1 100 mg/m3 to 1 200 mg/m3 ,the removal efficiency of the filter kept 87%-92% at the residence time of 94 s. Reduce the residence time could decrease the filter treatment efficiency, only 60 %-62 % of was purified at the residence time of 48 s.

关 键 词：扩体错流 生物滴滤 恶臭假单胞菌 甲苯 

分 类 号：X701[环境科学与工程—环境工程] X701.2