摘要
将城市生活污水处理厂活性污泥中的反硝化细菌培养挂膜到填料塔中，进行从模拟废气中脱除ＮＯｘ的效果性能实验研究．该生物膜填料塔能有效地脱除废气中的ＮＯｘ，ＮＯ２的去除率可达９９％以上，ＮＯ的去除率可达９０％左右．该法最适宜的温度为３０～４５℃，进口ＮＯ浓度（５０～５００ｍｇ／ｍ３）对其去除率几乎没有影响，随着废气流量的增加。
A biological column with denitrifying bacteria from activated sludge in urban domestic sewage treatment plant was set up to study removal of NOx from waste gas.It was shown that biological column can be used to reduce NOx to the elemental nitrogen.The NO2 removal efficiency was more than 99% and the NO removal efficiency was about 90%.The optimum temperature of denitrifying bacteria was 3045.The initial NO concentration(50mg/m3500mg/m3)had little effect on the removal efficiency.The NO removal efficiency was decreasing with increasing flow of waste gas.
出处
《环境科学》
EI
CAS
CSCD
北大核心
1999年第3期34-37,共4页
Environmental Science
基金
四川省应用基础项目
