title: A novel model-based adaptive control strategy for step-feed SBRs dealing with influent fluctuation.
abstract: A novel model-based adaptive control strategy for step-feed sequence batch reactors (SBRs) was developed and compared with traditional fixed-parameters control strategy and statically optimal parameters control strategy under influent fluctuation period. The SBR was operated with automatic alteration of the operating parameters based on the numerical calculation results of fully coupled activated sludge model (FCASM). Since the influent fluctuated from one cycle to another, model-based adaptive control strategy was applied to optimize the operating parameters of the SBR accordingly. By using the model-based adaptive control strategy, the average removal efficiencies for total nitrogen (TN) and total phosphorus (TP) achieved in fluctuation tests were over 84% and 98%, respectively. Compared to traditional fixed-parameters strategy, the TN removal efficiency was improved by 25.11%.
authors.affiliation: School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China.
authors.forename: Tao
authors.initials: T
authors.lastname: Luo
authors.affiliation: School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China.
authors.forename: Min
authors.initials: M
authors.lastname: Yang
authors.affiliation: School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China.
authors.forename: Jingyi
authors.initials: J
authors.lastname: Han
authors.affiliation: School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China; National Engineering Research Center of Urban Water Resources (Zhejiang Base), Hangzhou 310012, China. Electronic address: pdsun@126.com.
authors.forename: Peide
authors.initials: P
authors.lastname: Sun
mesh_terms: D019149:Bioreactors; D002138:Calibration; D003198:Computer Simulation; D007700:Kinetics; D008962:Models, Theoretical; D015203:Reproducibility of Results; D014865:Waste Disposal, Fluid
keywords: Fully coupled activated sludge model; Influent fluctuation; Model-based adaptive control strategy; Step-feed