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首页> 外文会议>International Conference on Asia-European Sustainable Urban Development; 20060404-06; Chongqing(CN) >Effect of aeration process on stability of denitrifying phosphorus removal system
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Effect of aeration process on stability of denitrifying phosphorus removal system

机译：曝气工艺对脱氮除磷系统稳定性的影响

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The phenomenon of denitrifying can be found under the condition of anaerobic/anoxic(A/A) in the biological phosphorus removal. The results show that the ability of denitrifying phosphorus removal in the system of A/A-SBR is lower than the system of anaerobic/anoxic/aerobic-SBR(A/AO-SBR). Along with the time increasing in the system of A/A-SBR, the ability of phosphorus removal will weaken, and the system's sludge productivity will also decrease gradually from initial 0. 22 gMLSS/(gCOD·d) to zero or even minus. The key to make the system operate steadily is increasing the latter aerobic time. However, the longer aerobic time will result in the accumulation of NO3--N, and restrain the system of A/AO-SBR from removing phosphorus. The latter aeration for 0.5 h will ensure not only steady operation, but also good effect of phosphorus removal in the system of A/AO-SBR.
机译：在生物除磷过程中，厌氧/缺氧（A / A）的条件下会发现反硝化现象。结果表明，A / A-SBR体系脱氮除磷能力低于厌氧/缺氧/好氧-SBR（A / AO-SBR）体系。随着A / A-SBR系统时间的增加，除磷能力将会减弱，系统的污泥生产率也将从最初的0. 22 gMLSS /（gCOD·d）逐渐降低至零甚至负。使系统稳定运行的关键是增加后者的有氧时间。然而，较长的有氧时间将导致NO3--N的积累，并限制A / AO-SBR体系去除磷。后者通气0.5 h不仅可以确保稳定运行，而且还可以确保A / AO-SBR系统中的除磷效果良好。

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