关于城市污水中氮磷去除的探讨

Probe into Ways of Denitrification and Dephosphorization in Urban Swage

结合水体中氮磷的污染危害性．根据生物脱氮除磷机理，分析了生物脱氮除磷Ａ２／Ｏ环境倒置工艺流程的特点，探讨了该工艺中脱氮除磷效果提高的原因，提出了工艺运行管理过程中应注意的一些问题．

The paper introduces the A2/O environmental inversion process flow of biological denitrification and dephosphorization by explaining the harmfulness of nitrogen and phosphorus pollution of water body and the mechanism of biological denitrification and dephosphorization. It analyses the reasons for improving the effect of denitrification and dephosphorization in the process and also points out what should be paid attention to in the course of process management.