城市污水处理A/A/O工艺中优化溶解氧自动控制的设计

Design of optimal control of dissolved oxygen in A/A/O process of municipal wastewater treatment

A/A/O是一种常用的污水处理工艺,通过利用厌氧-缺氧-好氧的方法,将污水当中的磷和氮去除,达到治理污水的目的,因此在城市的污水处理当中也往往采用A/A/O工艺,对污染水进行治理工作。本文对该工艺当中的溶解氧自动控制系统进行分析,采取相应的优化措施,在一定程度上减少曝气池当中溶解氧的波动范围。

A / A / O is a commonly used sewage treatment process, through the use of anaerobic - anoxic - aerobic method, the sewage of phosphorus and nitrogen removal, to achieve the purpose of sewage treatment, so the city＇s sewage treatment Which is often used A / A / O process, the pollution of water for governance. In this paper, the dissolved oxygen automatic control system in this process is analyzed and the corresponding optimization measures are taken to reduce the fluctuation range of dissolved oxygen in the aeration tank to a certain extent.