%0 Journal Article
%T N2O Emission and Control in Shortcut Nitrification and Denitrification and Simultaneous Nitrification and Denitrification Biological Nitrogen Removal Systems<br>污水短程硝化反硝化和同步硝化反硝化生物脱氮中N2O释放量及控制策略
%A ZHANG Jing-rong
%A WANG Shu-ying
%A SHANG Hui-lai
%A PENG Yong-zhen
%A <br>张静蓉
%A 王淑莹
%A 尚会来
%A 彭永臻
%J 环境科学
%D 2009
%I 
%X SBR reactors were used to investigate the N2O emission in shortcut nitrification and simultaneous nitrification and denitrification (SND). Shortcut nitrification with nitrosation rate above 90% was realized by real-time control strategy. The N2O emission and variation of nitrosation rate were investigated under 4 DO levels (0.5, 1.0, 1.5, 2.0 mg/L). The results turned out that the optimal DO to maintain high nitrosation rate and minimum N2O emission was 1.5 mg/L and the N2O emission was 0.06 g per ammonium removed. The SBR filled with carbon fiber performed under low DO and pulse feeding. The SND rate was over 79% during the experiment. The N2O emission was studied under DO 0.2, 0.4, 1.0 and 1.5 mg/L. It turned out that the optimal DO was 1.0 mg/L and the N2O emission was 0.021g per ammonium removed. Compared to the shortcut nitrification, the N2O emission of SND was 1/3 of the short-cut nitrification under optimal DO.
%K real domestic wastewater
%K shortcut nitrification and denitrification
%K simultaneous nitrification and denitrification (SND)
%K nitrous oxide (N2O)<br>实际生活污水
%K 短程硝化反硝化
%K 同步硝化反硝化(SND)
%K 一氧化二氮(N2O)
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=8FF97F367F39A08E8505516FC7F441BB&yid=DE12191FBD62783C&vid=340AC2BF8E7AB4FD&iid=59906B3B2830C2C5&sid=4415CA851AC36C0F&eid=EB0728A8B5F8C46A&journal_id=0250-3301&journal_name=环境科学&referenced_num=1&reference_num=20