A^2/O及倒置A^2/O工艺脱氮效率的计算与分析  

Calculation and Analysis of Denitrification Efficiency on A^2/O and Reversed A^2/O Process

作　　者：李文达 孙震宇 周继军 Li Wenda;Sun Zhenyu;Zhou Jijun(Henan Branch,Jiangsu RainFine Environment Technology Co.,Ltd.,Zhengzhou 450000;School of Resources and Environment,Henan Institute of Engineering,Zhengzhou 451191,)

机构地区：[1]江苏润环环境科技有限公司河南分公司,河南郑州450000 [2]河南工程学院资源与环境学院,河南郑州451191

出　　处：《环境保护科学》2018年第4期54-56,共3页Environmental Protection Science

基　　金：河南省科技攻关项目(162102310402)基金资助

摘　　要：依据物料衡算原理,对A^2/O及倒置A^2/O工艺的脱氮效率进行了严密的数学推导,得出了脱氮效率的计算公式。提高混合液回流比r_n和污泥回流比r_w,降低污泥龄θ_c,可提高脱氮效率,但为了维护处理系统的经济、高效地运行,这些参数应在一个合理的范围之内。According to the principle of material balance,a rigorous mathematical derivation of the denitrification efficiency of A^2/O and reversed A^2/O process was conducted,and formulas of the nitrogen removal efficiency was obtained.Enhancement of the mixed-liquor recycle ratio rn and the sludge reflux ratio rw and reduction of the sludge ageθccould improve the denitrification efficiency.However,with the aim at maintaining economic and efficient operation of the treatment system,these parameters should be within a reasonable range.

关 键 词：A2/O工艺 倒置A2/O工艺 脱氮效率 内循环比 污泥回流比 污泥龄 

分 类 号：X703.1[环境科学与工程—环境工程]