污水厂曝气节能智能优化控制系统应用研究

Most aeration systems in municipal wastewater treatment plants using activated sludge treatment technique have problems such as fluctuation of dissolved oxygen concentration, aeration rate redundancy and higher energy consumption for unit aeration. An Aeration Energy Saving Intelligent Optimization System（AES-IOS）is presented in this paper, The B IOS conducts simulation calculations based on the online measurement data of an A /O process. It continuously provides the designed optimal dissolved oxygen (DO) set point values according to the hydraulic loading of the bioreactor and optimizes tuning parameters PI controller automatically. The practical operation results of AES-IOS in Li-Jiao WWTP show its significant advantages in terms of both process stability and energy saving of the system.