| 引用本文: | 李海英,冯慕华,李玲,柯凡,李文朝.微曝气生态浮床净化入湖河口污染河水原位模型实验.湖泊科学,2009,21(6):782-788. DOI:10.18307/2009.0605 |
| LI Haiying,FENG Muhua,LI Ling,KE Fan,LI Wenchao.In-situ model experiment on purification of polluted river water into lake based on micro-aerated ecological floating bed. J. Lake Sci.2009,21(6):782-788. DOI:10.18307/2009.0605 |
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| 摘要: |
| 针对污染河水黑臭缺氧、NH4+-N含量高等问题,研发了一种"漂浮载体悬挂弹性生物膜填料+水生植物并辅以人工微曝气系统"的微曝气生态浮床系统.通过原位模型实验,研究了其在大清河入湖河口对污染河水的净化效果,当水力负荷为1500mm/d时,对TN和NH4+-N的平均去除率分别为81.1%、91.3%,对TP的平均去除率为72.7%,对PO43--N的平均去除率为92.5%,对有机物亦有较强的去除能力;处理1m3水需要的曝气费用约为0.007元.微曝气生态浮床系统整体运行稳定、去除效率高、能耗低,适合流水环境,可直接在污染河道和入湖河口区对污染河水进行自流净化. |
| 关键词: 微曝气生态浮床 污染河水 模型试验 净化效果 |
| DOI：10.18307/2009.0605 |
| 分类号: |
| 基金项目:国家高技术研究发展计划项目(863计划)(2005AA60101004和2006AA06Z325)资助 |
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| In-situ model experiment on purification of polluted river water into lake based on micro-aerated ecological floating bed |
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LI Haiying1,2, FENG Muhua1, LI Ling1, KE Fan1, LI Wenchao1
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1.State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, P.R.China;2.Graduate School of the Chinese Academy of Sciences, Beijing 100049, P.R.China
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| Abstract: |
| Aiming at the problem of black-odor, oxygen deficiency and ammonia-nitrogen pollution of polluted rivers, a new type ofecological floating bed—micro-aerated ecological floating bed was developed, which combined biofilm packing, floating aquaticmacrophyte and auxiliary aeration device. The purification efficiency of the polluted river water was studied by the model experimentin the outlet of Daqing River. The results showed when the hydraulic loading was 1500mm/d, the mean removal efficiencies of totalnitrogen, ammonia nitrogen, total phosphorus and phosphate were 81.1%, 91.3%, 72.7% and 92.5%, respectively. Additionally, thefloating bed showed better removal effect on organic matters. The cost of micro-aerated system to treat 1m3 of polluted river waterwas only 0.007 Yuan. The micro-aerated ecological floating bed ran steadily, had a high efficiency of pollutants removal and lowenergy consumption. It was suitable for the environment of flowing water, which could be used in polluted river and estuary. |
| Key words: Micro-aerated ecological floating bed polluted river water model experiment removal efficiency |
