生物反硝化法净化NO工业废气  

Biological Purification of Nitric-Oxide-Containing Waste Gas by Denitrification

作　　者：徐姣[1] 肖文珍[2] 李绪[1] 时彦卫[1] 张卫江[1] 王田明[3] 

机构地区：[1]天津大学化学工程技术研究所,天津300072 [2]河南油田南阳精蜡厂,南阳473132 [3]天津大学北洋化工设备有限公司,天津300072

出　　处：《天津大学学报》2008年第8期1010-1014,共5页Journal of Tianjin University(Science and Technology)

摘　　要：在生物滴滤塔中进行填料挂膜,利用反硝化菌处理模拟的NO工业废气.实验表明,动态培养驯化挂膜后,可见到杆状的反硝化脱氮菌.当停留时间为80,s,循环液流量为40～60,L/h,进气浓度为300～500,mg/m3时,NO去除率最高可达到98.4%.同时,在液相中只能检测到微量的N O3–.反硝化法是处理含NO废气的可行途径.Biofilter with biofilm carder was used to investigate the process of purifying the simulated nitric-oxide-containing waste gas by denitrifiers. Rod bacillus denitrifiers could be obtained after dynamically cultured and tamed for being carried on the packing materials. Nitric oxide removal efficiency was up to 98.4%, with empty-bed residence time （ EBRT ） 80 s, inlet nitric oxide concentration 300-500 mg/m^3 and circulating liquid flow 90-100 L/h. In addition, only a little NO3^- could be detected in the liquid. The experiment demonstrates that the way of purification of nitric-oxide-containing waste gas by denitrifying is feasible.

关 键 词：反硝化菌 生物滴滤塔 NO废气 生物膜 

分 类 号：X172[环境科学与工程—环境科学]