| 悬浮填料与好氧颗粒污泥脱氮对比试验研究 |
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| 引用本文： | 邓风,许欣,张雯. 悬浮填料与好氧颗粒污泥脱氮对比试验研究[J]. 环境科学与技术, 2009, 32(8) |
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| 作者姓名： | 邓风 许欣 张雯 |
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| 作者单位： | 河海大学环境科学与工程学院,江苏,南京,210098;南京工业大学环境学院,江苏,南京,210009;南京工业大学环境学院,江苏,南京,210009 |
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| 摘 要： | 常温连续流条件下,分别在两个反应器中投加悬浮填料和接种好氧颗粒污泥,通过控制工艺条件,两个反应器中均实现了同步硝化反硝化(SND)。改变进水溶解氧DO浓度、碳氮比(C/N)、有机负荷和NH4+-N负荷,分析比较了两个反应器脱氮的重要工艺条件。试验结果表明,在相同的工艺条件下,悬浮填料脱氮最佳DO浓度为1.0mg/L左右,最佳C/N为12;好氧颗粒污泥脱氮最佳DO浓度为1.5mg/L,最佳C/N为5。提高进水有机负荷,两个反应器COD去除率均稳定在较高的水平。NH4+-N浓度升高时,反应器脱氮效率均降低,好氧颗粒污泥比悬浮填料更耐冲击负荷。
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| 关 键 词： | 连续流 悬浮填料 好氧颗粒污泥 脱氮 |
Nitrogen Removal with Suspended Carrier and Aerobic Granule |
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| DENG Feng,XU Xin,ZHANG Wen. Nitrogen Removal with Suspended Carrier and Aerobic Granule[J]. Environmental Science and Technology, 2009, 32(8) |
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| Authors: | DENG Feng XU Xin ZHANG Wen |
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| Affiliation: | 1.School of Environment Science and Engineering;Hohai University;Nanjing 210098;China;2.School of Environment;Nanjing University of Technology;Nanjing 210009;China |
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| Abstract: | Effect on nitrogen removal in a suspended carrier reactor and an aerobic granule reactor with continuous flow was discussed.Under the temperature 23～24℃,simultaneous nitrification and denitrification occurred in two reactors.Influence of some operation parameters including DO concentration,ratio of C/N,COD and NH4+-N concentration was analyzed.Results showed for the suspended carrier,the optimum value of DO concentration was about 1.0mg/L and ratio of C/N was 12 while for the aerobic granule,the optimum value of DO concentration was about 1.5mg/L and ratio of C/N was 5.Organic carbon concentration had little effect on COD removal.Improving NH4+-N concentration could lower nitrogen removal efficiency.Aerobic granule was appropriate to treat wastewater with high NH4+-N concentration. |
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| Keywords: | continuous flow suspended carrier aerobic granular sludge nitrogen removal |
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