分点进水多级A/O污水处理工艺设计计算探讨  

Discussion on the step feed multi-grade A/O wastewater treatment process design and calculation

作　　者：刘长荣[1] 李红 常建一[1] 

机构地区：[1]天津市市政工程设计研究院,天津300051 [2]中国北车兰州机车有限公司,兰州730000

出　　处：《给水排水》2011年第1期9-13,共5页Water & Wastewater Engineering

摘　　要：介绍了分点进水多级A/O污水处理工艺主要设计参数的理论推导和选取方法,通过实际工程设计,分别对多级A/O工艺的反应器级数、反应器流量比例系数(Ri=Qi/Q)、反应器缺氧区和好氧区容积等进行了详细计算,并与单级A/O工艺进行了比较。分点进水多级A/O工艺具有系统污泥浓度高、硝酸盐浓度低、BOD5浓度均衡、节省反应池容积、无需内回流装置等优点。This paper introduced the theoretical derivation and application of the main design parameters for step feed multi-grade A/O wastewater treatment process. Through the practical engineering design, the grade number of multi-grade A/O reactors, reactor flow rate proportionality coefficient （Ri =Qi/Q）, and reactor （A/O） volume calculation were carried out in details. Compared with single-grade A/O process, the step feed multi-grade A/O process has the advantages of high system sludge concentration, low nitrate concentration, balanced BODs concentration, reaction tank volume saving, and no need of internal reflux unit, and so on.

关 键 词：污水处理厂 多级A/O工艺 分点进水 设计计算 反硝化速率 

分 类 号：X703.1[环境科学与工程—环境工程]