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颗粒污泥厌氧氨氧化动力学特性及微量NO2的影响
摘要点击 3161  全文点击 1677  投稿时间:2007-05-31  修订日期:2007-09-07
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中文关键词  厌氧氨氧化  动力学  微量NO2  强化厌氧氨氧化
英文关键词  anaerobic ammonium-oxidizing  kinetics  trace NO2  enhancing anaerobic ammonium oxidation
作者单位
祖波 重庆大学环境科学系重庆 400030
重庆交通大学河海学院
重庆 400074 
张代钧 重庆大学环境科学系重庆 400030
重庆大学西南资源开发及环境灾害控制工程教育部重点实验室
重庆 400030 
阎青 重庆大学环境科学系重庆 400030 
中文摘要
      采用批试验方法,研究了颗粒污泥厌氧氨氧化动力学特性及微量NO2的影响.用Haldane模型描述厌氧氨氧化反应动力学,得到最大氨氮反应速率6.65×10-3 mg·(mg·h)-1、氨氮半饱和常数87.1 mg·L-1和抑制常数1 123 mg·L-1,亚硝态氮半饱和常数15.39 mg·L-1和抑制常数159.5 mg·L-1.微量NO2对厌氧氨氧化具有强化作用,基于Haldane模型建立了厌氧氨氧化的NO2强化函数,估计了强化函数中的最大强化系数48.79、NO2半饱和常数2 480 mg·m-3、NO2抑制常数4.22 mg·m-3和基础速率系数0.018 2.试验中大部分的NOx出现损失.
英文摘要
      The effect of trace NO2 and kinetic characteristics for anaerobic ammonium oxidation of granular sludge was investigated by batch experiment. The sludge anammox rates could be described by the Haldane model. The kinetic parameters were determined, where the maximum anammox rate was 6.65×10-3 mg·(mg·h)-1. The half saturate coefficient and inhibition coefficient for ammonium nitrogen were 87.1 mg·L-1and 1 123 mg·L-1 respectively, and the half saturate coefficient and inhibition coefficient for nitrite nitrogen were 15.39 mg·L-1 and 159.5 mg·L-1 respectively. Trace NO2 apparently enhanced anammox under trace NO2 atmosphere conditions. The function for NO2 to enhance anammox was suggested by the Haldane based model. The parameters in the function were estimated, where the maximum enhancing anammox coefficient was 48.79, and the half saturate coefficient and inhibition coefficient for NO2 were 2 480 mg·m-3 and 4.22 mg·m-3 respectively, and the basic rate coefficient was 0.018 2. The most of NOx in the experiment was lost.

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