微生物法脱除锅炉废气中氮氧化物的研究  

Removal of nitrogen oxides in exhaust boiler gas by microbiological method

作　　者：张卫江[1] 吴彬[1] 徐姣[1] 

机构地区：[1]天津大学化工学院,天津300072

出　　处：《现代化工》2015年第3期81-83,共3页Modern Chemical Industry

摘　　要：在有氧条件下,研究了生物滤池(bio-filter,BF)、生物滴滤塔(bio-trickling filter,BTF)等不同设备中好氧反硝化菌对NOx气体的脱除效果以及不同操作条件下的运行情况,并对NOx的脱除机理进行了探索。实验表明:滴滤塔中NOx的脱除效果略微优于滤池中的脱除效果。实验后期,设计了1个新型滤池与滴滤塔结合的设备,在O2体积分数为11%,NOx进气质量浓度为2 500 mg/m3,EBRT为45 s时,NOx的脱除率达到92.5%。The removal efficiency of NOx by aerobic denitrification bacteria in bio-fiher and bio-trickling filter is described. The removal mechanism of NOx is explored. The result shows that the BTF is more proper than the BF. The new device, the combination of the BF and BTF, is used to determine the removal efficiency of NOx when oxygen content, inlet NOx concentration and EBRT are 11% ,2500 mg/m^3 and 45 seconds, respectively. The removal efficiency of NOx is up to 92. 5%.

关 键 词：生物滤池 生物滴滤塔 好氧反硝化菌 新型装置 

分 类 号：O613.61[理学—无机化学]