| 改进型曝气生物滤池对生活污水氮去除的影响 |
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| 引用本文： | 伦琳,郑正,张继彪,梁越敢.改进型曝气生物滤池对生活污水氮去除的影响[J].环境工程学报,2010,4(5):1017-1022. |
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| 作者姓名： | 伦琳 郑正 张继彪 梁越敢 |
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| 作者单位： | 1. 污染控制与资源化研究国家重点实验室,南京大学环境学院,南京210093
2. 污染控制与资源化研究国家重点实验室,南京大学环境学院,南京210093;复旦大学环境科学与工程系,上海200433 |
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| 基金项目： | 水利部公益性行业科研专项（200801028） |
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| 摘 要： | 采用下向流中部曝气的运行方式,对生活污水进行了处理,考察了气水比、有机负荷对生物滤池的去除效果及其沿程生化特性。结果表明:水力停留时间为8 h,气水比为10∶1条件下可获得最佳的处理效果,COD、TN和NH4+-N的平均去除率分别为92.5%、48.6%和69.4%。进水有机负荷增加,COD和NH4+-N的去除率下降,TN的去除率可达60.5%。结合理论分析,对脱氮性能进行了探讨。
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| 关 键 词： | 改进型曝气生物滤池 生活污水 气水比 脱碳脱氮 |
| 修稿时间： | 8/8/2009 12:00:00 AM |
Effect of modified biological aerated filter on nitrogen removal of domestic wastewater |
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| Lun Lin,Zheng Zheng,Zhang Jibiao and Liang Yuegan.Effect of modified biological aerated filter on nitrogen removal of domestic wastewater[J].Techniques and Equipment for Environmental Pollution Control,2010,4(5):1017-1022. |
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| Authors: | Lun Lin Zheng Zheng Zhang Jibiao and Liang Yuegan |
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| Abstract: | The aeration system installed in the middle of BAF was used for domestic wastewater treatment.Gas-to-liquid ratios、organic loadings and microbes along the reactor of BAF were investigated.Results indicate that the good performance of BAF can be achieved at hydraulic retention time 8 h,gas-to-liquid ratio 10:1,the average removal rates of COD,TN,NH_4~+-N in optimal stage are 92.5%,48.6%and 69.4%,respectively.Higher organic loadings result in lower efficiencies of COD、NH_4~+-N removal,but the efficiency of TN removal increases to 60.5%.Based on experimental results and theoretical analysis.the mechanism of TN removal was probed. |
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| Keywords: | modified biological aerated filter domestic wastewater gas-to-liquid ratio carbon and nitrogen removal |
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