生物滴滤器净化苯废气研究  

Study on Purification of Gaseous Benzene with Biotrickling Filter

作　　者：王晨昊 羌宁[2] 

机构地区：[1]第九设计研究院环境工程设计研究所,上海200063 [2]同济大学环境科学与工程学院污染控制与资源化国家重点实验室,上海200092

出　　处：《四川环境》2006年第5期1-3,14,共4页Sichuan Environment

摘　　要：采用不锈钢丝网作为生物滴滤器的载体材料，用经以苯为唯一碳源驯化而得的微生物菌种，进行苯废气的净化实验。结果表明：在实验的负荷范围内，生物滴滤器的消除能力随负荷的增加而增加，但净化效率总体上随负荷的升高而下降。在相同的进气苯浓度下，随着停留时间的增加，消除能力和净化效率迅速提高，停留时间为33．9s时，净化效率达98％。在30～40mg／L·h的负荷水平下的净化效率随循环液流量的变化而变化，实验中最佳的液体流量为0．8L／h。进口浓度对生物滴滤器的净化效率和所需的填料层高度有较大的影响。A biotrickling filter packed with wire roesh was used to reroove benzene froro a waste gas stream. The experiroental results showed that the elimination capacity was improved with the increase of loading but the removal efficiency descended at the range of experiment loading.At the same inlet concentration, the elimination capacity and the removal efficiency were iroproved rapidly with the increase of retention time, and the removal efficiency achieved 98% at the retetion tiroe of 33.9 s.In the loading range of 30 - 40 mg/L·h, the removal efficiency varied with the flowrate of recycled liquid, and the optimum capacity was 0.8 L/h.The removal efficiency and the required height of a biotrickling filter were rouch affected by the inlet concentration.

关 键 词：气体生物滴滤器 苯废气净化 影响因素 

分 类 号：X701[环境科学与工程—环境工程]