%0 Journal Article
%T Screening and enrichment of denitrifying phosphorus accumulating bacteria using nitrite as electronic acceptor<br>利用亚硝酸盐为电子受体反硝化聚磷菌的筛选与富集
%A Zhou Kangqun
%A Liu Hui
%A Sun Yanfu
%A Zhou Yipin
%A Liu Jieping
%A <br>周康群
%A 刘晖
%A 孙彦富
%A 周遗品
%A 刘洁萍
%J 环境工程学报
%D 2007
%I 
%X In this paper,according as the denitrifying phosphorus bacteria(DPB) principle,dynamic SBR reactor and static releasing/accumulating phosphorus installation were investigated.The anoxic sludge of A2/O technology was used as inoculum.The screening and enrichment of denitrifying phosphorus accumulating bacteria(DPB) using nitrite as electronic acceptor and its characteristics were studied.The result shows: the DPB using nitrite as electronic acceptor indeed lies in the anoxic sludge of A2/O technology.After anaerobic/aerobic and anaerobic/anoxic stages,the amount of PAO increases from 1400 to 32 000.The ratio of DPB to PAO improves from 14.5% to 81%.The removal rates of phosphate and nitrite rise from 8.65% and 7.55% to 91% and 95.62% respectively;when the DPB using nitrite as electronic acceptor is screened and enriched,the COD concentration of influent in the anoxic stage must be controlled below 10 mg/L.The existence of DPB is not restrained and the system is not disturbed when the system is stable and the nitrite concentration reaches as high as 30 mg/L.At the same time the concentration of phosphate in the effluent is below 1.06 mg/L.
%K A2/O technology
%K nitrite
%K denitrifying phosphorus accumulating
%K denitrifying phosphorus accumulating bacteria<br>A2/O工艺
%K 亚硝酸盐
%K 反硝化聚磷
%K 反硝化聚磷菌
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=92E6F4267FD4CBCB51B1E49E014D8054&jid=3567BD61129AA59043F5DE01F8815DB5&aid=25592F5F5477336C98AC316F8146DEFF&yid=A732AF04DDA03BB3&vid=CA4FD0336C81A37A&iid=5D311CA918CA9A03&sid=6FBD78E3BAB60869&eid=6DE26652A1045643&journal_id=1673-9108&journal_name=环境工程学报&referenced_num=0&reference_num=12