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首页> 外文会议>2011 International Conference on Computer Distributed Control and Intelligent Environmental Monitoring >Fast Start-Up of A2N Denitrifying Phosphorus and Nitrogen Removal System
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Fast Start-Up of A2N Denitrifying Phosphorus and Nitrogen Removal System

机译：A2N脱氮除磷脱氮系统快速启动

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摘要

Using municipal wastewater, the fast start-up of A2Ntwo-sludge nitrification and denitrification phosphorus and nitrogen removal system was studied. In the SBR reactor, the nitrification bio film was first cultured with continuous aeration, and then the nitrosobacteria was screened with the help of intermittent aeration. On the 43th day bio film enriched with nitrification bacteria could be got, in another SBR reactor, adopting the first anaerobic / aerobic and then anaerobic / anoxic way to culture the denitrifying phosphorus removal bacteria which using nitrite as electron acceptor, on the 58th day, target species could be obtained, followed by joint operation of two reactors. By debugging, A2N two-sludge system can be successful start up on the 20th. The COD of effluent was 20 ~ 25mg / L, concentration of NH4+ was 5 ~ 7mg/ L, and the concentration of PO43- was 0.3 ~ 0.5mg / L, the removal rates reached 90% to 93%, 95% to 97%, 94% to96%, respectively.
机译：研究了A2NTWO污泥硝化和脱氮磷和氮去除系统的快速启动。在SBR反应器中，首先用连续通气培养硝化生物膜，然后在间歇曝气的帮助下筛选亚硝基菌。在第43天的生物薄膜中富含硝化细菌可以得到，在另一个SBR反应器中，采用第一种厌氧/有氧，然后厌氧/缺氧方法培养反硝化磷去除细菌，在第58天，可以获得靶物种，然后进行两个反应器的联合操作。通过调试，A2N双污泥系统可以成功启动20日。流出物的鳕鱼是20〜25mg / L，NH 4 +浓度为5〜7mg / L，PO43-浓度为0.3〜0.5mg / L，去除率达到90％至93％，95％至97％分别为94％至96％。

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