%0 Journal Article
%T Simultaneous Nitrogen and Phosphorous Removal Under Low DO in a Hybrid Biological Reactor<br>复合生物反应器低溶解氧同步脱氮除磷
%A WANG Jian-long
%A WANG Shu-ying
%A PENG Yong-zhen
%A GAO Yong-qing
%A SUN Zhi-rong
%A <br>王建龙
%A 王淑莹
%A 彭永臻
%A 高永青
%A 孙治荣
%J 环境科学
%D 2008
%I 
%X Study was conducted by use of the mixed organism of activated sludge and suspended biofilm coexisting in a hybrid biological reactor (HBR) system for simultaneous nitrogen and phosphorous removal. The experimental results showed that, DO and COD/TN were the main factors affected the effluent , the maximum phosphorous releasing rate (the rate that PO43--P concentration at releasing end to the initial PO43--P concentration) was 249%, TN removal efficiency was 80.0%, PO43--P removal efficiency was 92.2% by controlling the aeration rate (Qair) at 0.07m3/h, TN and PO43--P removal efficiency will be decreased, whenever aeration rate increasing or decreasing. With the increasing of COD/TN, the TN and PO43--P removal efficiency was increased, TN removal efficiency was increased from 70.3% to 84.9% , PO43--P removal efficiency was increased from 82.2% to 96.0%, when COD/TN was increased from 3.2 to 10.5. The SVI of the activated sludg was less than 90ml/g during the experiments. It was found during the research process that high phosphorus and nitrogen removal efficiency can be simultaneous achieved without anaerobic and anoxic phase , which was conventionally considered as a key phase for phosphorus and nitrogen removal.
%K hybrid biological reactor
%K nitrogen removal: phosphorous removal
%K DO<br>复合生物反应器
%K 脱氮
%K 除磷
%K 溶解氧
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=8D0AEDB5AEB0B1A9178C25319EE6D2EB&yid=67289AFF6305E306&vid=771469D9D58C34FF&iid=38B194292C032A66&sid=04FC77FB58A9B53A&eid=00520952CD4BF212&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=14