改良倒置A^2/O工艺脱氮效率的研究与分析

Research and analysis of nitrogen removal on modified and reversed A^2/O process

对改良倒置A2/O工艺进行了讨论,并对其脱氮效率以及进入缺氧池和厌氧池的污水分配系数进行了研究分析,对于典型城市污水得出:①系统的脱氮效率为84.5%,出水硝态氮浓度为6.2 mg/L;②进入缺氧池的污水分配系数β≥37.2%~62%,厌氧池污水分配系数α≥40%。

The modified and reversed A^2/O process is discussed in this article, also the nitrogen removal efficiency of it and the ratio of the sewage that going to the anaerobic and anoxic tank are analyzed. For urban waste water, the results show that ：① The removal efficiency of nitrogen is 84.5% and the nitrogenous consistency of outlet is 6.2 mg/L. ② The ratio that going to the anoxic and anaerobic tank should be no less than 37.2% to 62% and 40% respectively.