分段进气生物膜滴滤塔的废气净化效率  

Purification Efficiencies of Trickling Biofilter With Waste Gas Subsection-Inlets

作　　者：陈蓉[1] 廖强[1] 朱恂[1] 

机构地区：[1]重庆大学工程热物理研究所,重庆400030

出　　处：《重庆大学学报（自然科学版）》2004年第4期78-81,共4页Journal of Chongqing University

基　　金：国家自然科学基金项目(50006015);重庆市科技攻关项目(2001-6681);重庆市应用基础研究项目(2001-6877)

摘　　要：采用毛细管模型对分段进气生物膜滴滤塔净化有机废气的效率进行了分析,获得了分段进气单一出气和分段进气分段出气两种方式下生物膜滴滤塔降解有机废气的效率。通过计算发现:同传统单进单出的方式相比,对于分段进气单一出气,分段数越多,效率越低;对于分段进气多段出气,分段数对净化效率的影响很小,而采用这种分段进出气方式可有效地减少填料床的堵塞现象,提高生物膜滴滤塔的实际净化效率。The purification efficiency of trickling biofilter with waste gas subsection-inlet is numerically computed based on the capillary model. The studied trickling biofilters involve the one with several subsection-inlets but only one exit and another with several subsection-inlets and exits. The purification efficiency of the trickling biofilter with several subsection-inlets and one exit is lower than the traditional trickling biofilter with one inlet and exit under the same operational conditions. As the number of subsection-inlet increases, the purification efficiency decreases. For the trickling biofilter with several subsection-inlets and one exit, the number of subsection-inlet has very little influence on the purification efficiency that is very close to the purification efficiency of the trickling biofilter with one inlet and exit.

关 键 词：生物膜滴滤塔 毛细管模型 分段进气 降解效率 

分 类 号：TK121[动力工程及工程热物理—工程热物理]