| 曝气强度对AOA膜生物反应器脱氮除磷性能的影响 |
| 摘要点击 7164 全文点击 3216 投稿时间：2010-11-01 修订日期：2011-03-31 |
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| 中文关键词 膜生物反应器 曝气强度 脱氮除磷 反硝化除磷 污水处理 |
| 英文关键词 membrane bioreactor(MBR) aeration intensity nitrogen and phosphorus removal denitrifying phosphorus removal wastewater treatment |
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| 中文摘要 |
| 考察了曝气强度为2.5、 3.75和5.0 m3·(m2·h)-1条件下，厌氧/好氧/缺氧序批式膜生物反应器(AOA MBR)对模拟生活污水同时脱氮除磷性能的影响.结果表明，曝气强度对AOA MBR中COD的去除无显著影响，去除效率均在90%以上.氨氮的去除效果随着曝气强度的增加而提高，3个曝气强度下的平均去除率分别为84.7%、 90.6%和93.8%.TN的去除率随着曝气强度的增加呈现先上升后下降的趋势，3种条件下分别为83.4%、 87.4%和80.6%.系统的反硝化除磷性能亦受曝气强度影响，3个曝气强度下系统中反硝化除磷的比例分别为20%、 30.2%和26.7%。 |
| 英文摘要 |
| The ability of simultaneous phosphorus and nitrogen removal of sequencing batch membrane bioreactor run in anaerobic/oxic/anoxic mode(AOA MBR) was examined under three aeration intensities［2.5, 3.75 and 5.0 m3·(m2·h)-1］. The results showed that the averaged removals of COD were over 90% at different aeration intensities. And the higher aeration intensity was, the more ammonia nitrogen removal rate achieved. The removal rates of NH+4 under the three aeration intensities were 84.7%, 90.6% and 93.8%, respectively. Total nitrogen removal rate increased with the increasing aeration intensity. But excessive aeration intensity reduced TN removal. The removal rates of TN under the three aeration intensities were 83.4%, 87.4% and 80.6%, respectively. Aeration intensity affected the denitrifying phosphorus ability of the AOA MBR. The ratio of denitrification phosphorus removal under the three aeration intensities were 20%, 30.2% and 26.7%, respectively. |
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