| MBR同步硝化反硝化及异养硝化试验研究 |
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| 引用本文： | 林燕,何义亮,李春杰,王崇,孔海南.MBR同步硝化反硝化及异养硝化试验研究[J].环境科学与技术,2006,29(1):7-9,27. |
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| 作者姓名： | 林燕 何义亮 李春杰 王崇 孔海南 |
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| 作者单位： | 上海交通大学环境科学与工程学院,上海,200240 |
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| 摘 要： | 在以限制混合液溶解氧浓度方式运行的M BR反应器中,通过改变进水COD/TKN、混合液DO浓度等工艺参数,研究了对系统中同步硝化反硝化(SND)过程的影响因素。根据试验结果探讨了M BR系统中所实现的SND机理,同时对系统中存在的异养硝化细菌进行了分离培养,并对其硝化特性进行了初步研究分析。试验结果表明:影响系统SND的主要因素是进水COD/TKN和反应器中控制的混合液DO浓度。系统中存在一定量的异养硝化菌。
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| 关 键 词： | SND 异养硝化 MBR 硝化特性 |
| 文章编号： | 1003-6504（2006）01-0007-04 |
| 收稿时间： | 2004-04-03 |
| 修稿时间： | 2004-04-032005-04-14 |
Simultaneous Nitrification and Denitrification and Heterotrophic Nitrification in Membrane Bioreactor |
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| LIN Yan,HE Yi-liang,LI Chun-jie,WANG Chong,KONG Hai-nan.Simultaneous Nitrification and Denitrification and Heterotrophic Nitrification in Membrane Bioreactor[J].Environmental Science and Technology,2006,29(1):7-9,27. |
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| Authors: | LIN Yan HE Yi-liang LI Chun-jie WANG Chong KONG Hai-nan |
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| Abstract: | In this literature, the factors affecting SND in MBR were studied. Performance of membrane bioreactor (MBR) under different levels of COD/TKN (carbon-nitrogen) values and dissolved oxygen (DO) concentrations was evaluated. Bacteria were isolated from the system in which the efficiency of nitrogen removal was up to 80%. Results suggest that bacteria present in the system are able to nitrify via a heterotrophic pathway which is named heterotrophic nitrification. The factors which affect SND in MBR are COD/TKN value, DO concentration and so on. |
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| Keywords: | simultaneous nitrification and denitrification heterotrophic nitrification membrane bioreactor nitrifying |
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