| 溶解氧对同步硝化反硝化脱氮影响研究 |
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| 引用本文： | 李贤胜,施永生,王琳.溶解氧对同步硝化反硝化脱氮影响研究[J].给水排水,2009,35(Z2). |
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| 作者姓名： | 李贤胜 施永生 王琳 |
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| 作者单位： | 昆明理工大学建筑工程学院,昆明,650224 |
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| 基金项目： | 昆明理工大学校青年基金 |
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| 摘 要： | 以实际生活污水为处理对象,利用生物膜内所具有的A/O环境,针对DO浓度对生物膜法同步脱氮效果影响进行试验研究.研究结果表明,在DO为2.5 mg/L时SND脱氮效果达最佳,TN去除率近70%;DO浓度过高或过低都不利于生物膜内部DO浓度梯度的形成,合理控制DO浓度,对生物膜法同步脱氮尤为重要.
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| 关 键 词： | 同步硝化反硝化 生物膜法 溶解氧 |
Effect of dissolved oxygen on simultaneous nitrification and denitrification |
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| Li Xiansheng,Shi Yongsheng,Wang Lin.Effect of dissolved oxygen on simultaneous nitrification and denitrification[J].Water & Wastewater Engineering,2009,35(Z2). |
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| Authors: | Li Xiansheng Shi Yongsheng Wang Lin |
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| Abstract: | In this paper, the raw wastewater is domestic wastewater. Take advantage of the bifilm has anaerobic/aerobic conditions. The effect of dissolved oxygen on simultaneous nitrification and denitrification(SND)was investigated. The results showed that: DO=2.5 mg/L was the best condition for SND, the TN removal rate was nearly 70%; Because the DO concentration which is too high or too low is not conductive to formation of DO concentration gradient, proper control of DO concentration is very important for SND in biofilm reactor. |
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| Keywords: | Simultaneous nitrification and denitrification Biofilm reactor Dissolved oxygen |
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