| 孔径对微孔曝气充氧性能的影响 |
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| 引用本文： | 庄健,王洪臣,齐鲁,刘国华,李小冬,龙海涛.孔径对微孔曝气充氧性能的影响[J].环境工程学报,2014,8(5):1723-1726. |
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| 作者姓名： | 庄健 王洪臣 齐鲁 刘国华 李小冬 龙海涛 |
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| 作者单位： | 中国人民大学环境学院, 北京 100872;中国人民大学环境学院, 北京 100872;中国人民大学环境学院, 北京 100872;中国人民大学环境学院, 北京 100872;中国人民大学环境学院, 北京 100872;中国人民大学环境学院, 北京 100872 |
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| 基金项目： | 国家“863”高技术研究发展计划项目（2009AA063804）；国家“水体污染控制与治理”科技重大专项（2011ZX07316-001） |
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| 摘 要： | 孔径是微孔曝气产品最重要的参数之一,研究孔径对微孔曝气氧传质的影响对于提高微孔曝气器充氧性能有重要意义。本研究在1.5 m水深条件下对不同大小孔径的钟罩型塑料微孔曝气器充氧性能进行评价。结果发现,在实验条件下,微孔曝气器的阻力损失RL、标准氧总转移系数KLas、标准氧转移速率SOTR,标准氧转移效率SOTE及理论动力效率E随孔径增大而显著减小。
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| 关 键 词： | 微孔曝气器 孔径 充氧性能 阻力损失 |
| 收稿时间： | 4/8/2013 12:00:00 AM |
Effects of pore diameter on oxygenation performance in fine pore aeration |
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| Zhuang Jian,Wang Hongchen,Qi Lu,Liu Guohu,Li Xiaodong and Long Haitao.Effects of pore diameter on oxygenation performance in fine pore aeration[J].Techniques and Equipment for Environmental Pollution Control,2014,8(5):1723-1726. |
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| Authors: | Zhuang Jian Wang Hongchen Qi Lu Liu Guohu Li Xiaodong and Long Haitao |
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| Institution: | School of Environment and Natural Resources, Renmin University of China, Beijing 100872, China;School of Environment and Natural Resources, Renmin University of China, Beijing 100872, China;School of Environment and Natural Resources, Renmin University of China, Beijing 100872, China;School of Environment and Natural Resources, Renmin University of China, Beijing 100872, China;School of Environment and Natural Resources, Renmin University of China, Beijing 100872, China;School of Environment and Natural Resources, Renmin University of China, Beijing 100872, China |
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| Abstract: | Pore diameter is one of the most important parameters for fine bubble diffusers, and it is necessary for improving oxygenation performance to study impacts of pore diameter on oxygen mass transfer. We assessed the impacts through a pilot test using the plastic bell-type fine bubble diffusers at the 1.5 m water depth. The results showed that RL, KLas, SOTR, SOTE and E decreased significantly when the pore diameter increased. |
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| Keywords: | fine bubble diffusers pore diameter oxygenation performance resistance loss |
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