%0 Journal Article
%T Nitrification Performance and Microbial Community Analysis in Carbon Membrane-Aerated Biofilm Reactor<br>炭膜曝气生物膜反应器硝化作用及其微生物群落结构分析
%A LIU Hui-jun
%A YANG Feng-lin
%A ZHANG Han-min
%A HU Shao-wei
%A SUN Cui
%A <br>刘惠军
%A 杨凤林
%A 张捍民
%A 胡绍伟
%A 孙翠
%J 环境科学
%D 2007
%I 
%X A carbon membrane-aerated biofilm reactor was developed to treat nitrogenous inorganic wastewater. Influent NH; -N concentrations and HRT were changed to investigate nitrification performance of reactor,oxygen utilization and NH4+ -N's removal loading. Biofilm's surface characteristics and dominant bacteria of nitrifier were analyzed. The results show that under the conditions of intra-membrane pressure of 0.017 MPa, influent NH4+ -N of 50 mg/L and HRT of 8 h NH4+ -N removal efficiency reaches 96% and effluent average nitrite is 17 mg/L, which benefits short-cut nitrification to a certain extent. The bacteria within biofilm consume all oxygen supplied through carbon membrane. The maximum specific removal rate of NH4+ -N is 9.7 g/(m2 x d), which is limited by the amount of bacteria grown onto carbon membrane's surface. Fluorescent in situ hybridization analysis indicates that within the biofilm Nitrosomonas and Nitrosospira are main ammonia-oxidizing bacteria and occupy about 19% and 21% of the total bacteria number, respectively. The Nitrobacter are not observed and Nitrospira are dominant nitrite-oxidizing bacteria, the fraction of which is 20% of total bacteria.
%K carbon membrane-aerated biofilm reactor(CMABR)
%K oxygen utilization
%K removal rate of NH~ _4-N
%K fluorescent in situ hybridization(FISH)
%K community analysis<br>炭膜曝气生物膜反应器
%K 氧的利用
%K 氨氮去除速率
%K 荧光原位杂交（FISH）
%K 群落结构分析
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=B78FAFA6EA51A301&yid=A732AF04DDA03BB3&vid=D3E34374A0D77D7F&iid=9CF7A0430CBB2DFD&sid=A4F4D28C1A7C14B6&eid=D80F1BE4CEC3C1BF&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=16