%0 Journal Article
%T Removal of nitrogen oxides from waste gases by bio-filter and NRB under aerobic conditions<br>生物滤塔和NRB在有氧条件下去除废气中的NOx
%A Ren Xiaoli
%A Zhao Lin
%A Yang Baoqiang
%A Zhao Runzhu
%A <br>任晓莉
%A 赵林
%A 杨宝强
%A 赵润柱
%J 环境工程学报
%D 2011
%I 
%X The mass transfer mechanism of nitrogen oxides under aerobic conditions in biofilter was studied. The results showed that when oxygen content was about 20% and oxidation rate was 80%, only about 12% of NOx which were removed by biofilter were absorbed and decomposed by microorganisms, and 88% of NOx were not timely decomposed by microorganisms, but transferred into liquid phase in the form of NO-2 and NO-3. On the basis of this, the integrated process of biofilter and NRB was put forward to remove NOx from exhaust gases under aerobic conditions, a series of experimental were carried out. The results showed that the removal efficiency of NOx achieved 90.23% for the inlet NOx concentration of 1 488.92 mg/m3 when the residence time was 9.42 s, and the concentration of NO-2and NO-3 at the outlet of NRB was less than 5 mg/m3.
%K 生物滤塔
%K 硝酸盐脱除反应器
%K 去除
%K 氮氧化物
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=92E6F4267FD4CBCB51B1E49E014D8054&jid=3567BD61129AA59043F5DE01F8815DB5&aid=32EDA3EF91E7C7481970F2C631712F9B&yid=9377ED8094509821&vid=94C357A881DFC066&iid=0B39A22176CE99FB&sid=AFB2C35009D5D191&eid=0BD4FAD4A90498AB&journal_id=1673-9108&journal_name=环境工程学报&referenced_num=0&reference_num=0