| 多段进水A/O生物膜工艺运行性能的研究 |
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| 引用本文： | 胡博,赵剑强,陈莹,华立娜,毛鹤群.多段进水A/O生物膜工艺运行性能的研究[J].中国环境科学,2011,31(10):1644-1650. |
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| 作者姓名： | 胡博 赵剑强 陈莹 华立娜 毛鹤群 |
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| 作者单位： | 长安大学环境科学与工程学院,陕西 西安,710064 |
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| 摘 要： | 为提高多段进水A/O生物膜工艺的脱氮效率,按照进入各缺氧池的COD量与硝态氮量的比值相同,且等于一最优比值的原则进行流量分配,按照容积负荷相等的原则设计各反应单元,对多段进水A/O生物膜工艺的流量分配和反应单元容积分配同时进行优化,并采用三段进水A/O生物膜反应器试验了等流量分配模式下运行和优化模式下运行的出水水质的差异.试验结果表明,当多段进水A/O生物膜工艺在两种模式下采用相同参数运行时,优化模式下总氮(TN)去除率明显高于等流量模式,其分别为88.8%和80.3%.优化模式与等流量分配模式对COD和总凯氏氮的去除率差别不大(均可达到97%和98%以上).采用该优化设计方法可以显著提高该工艺的TN去除效率.
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| 关 键 词： | 多段进水 A/O生物膜工艺 生物脱氮 运行性能 优化 |
| 收稿时间： | 2011-03-23; |
Operation performance of step feeding A/O biofilm process |
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| HU Bo,ZHAO Jian-qiang,CHEN Ying,HUA Li-na,MAO He-qun.Operation performance of step feeding A/O biofilm process[J].China Environmental Science,2011,31(10):1644-1650. |
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| Authors: | HU Bo ZHAO Jian-qiang CHEN Ying HUA Li-na MAO He-qun |
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| Institution: | HU Bo,ZHAO Jian-qiang,CHEN Ying,HUA Li-na,MAO He-qun(School of Environmental Science and Engineering,Chang'an University,Xi'an 710064,China) |
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| Abstract: | In order to improve total nitrogen(TN) removal efficiency,influent flow rate distribution and volume of each treatment zone of step feeding A/O biofilm process were optimized simultaneously.Optimization of influent flow rate distribution was based on the principle that the concentration ratio of chemical oxygen demand(COD) to nitrate nitrogen of the influent of each anoxic zone was same and equaled an optimum ratio,and the volume of each treatment zone was designed based on the idea of equal volume loading.... |
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| Keywords: | step feeding A/O biofilm process biological nitrogen removal operation performance optimization |
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