Model of Aeration System at Biological Wastewater Treatment Plant for Control Design Purposes

Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 1196)


The wastewater treatment plant (WWTP) is a dynamic, very complex system, in which the most important control parameter is the dissolved oxygen (DO) concentration. The air is supplied to biological WWTP by the aeration system. Aeration is an important and expensive activity in WWTP. The aeration of sewage fulfils a twofold role. Firstly, oxygen is provided as the main component for biological processes. Secondly, it supports mixing the sludge with the delivered sewage, which helps to treat the sewage. The paper proposes a model of the aeration system for biological WWTP located in Northeast Poland. This aeration system consists of the blowers, the main collector pipeline, three lines of the aeration with different diameters and lengths and diffusers. This system is a nonlinear dynamic system with faster dynamics compared to the internal dynamics of the DO at the biological WWTP. Control of the aeration system is also difficult in terms of control of the DO. A practical approach to model identification and validation is proposed. Simulation tests for aeration system at Matowskie Pastwiska WWTP are presented.


Aeration system Modelling Nonlinear system Wastewater treatment plant 



The authors would like to thank the staff of the Matowskie Pastwiska WWTP for their help with access to the plant, information and data.


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© Springer Nature Switzerland AG 2020

Authors and Affiliations

  1. 1.Faculty of Electrical and Control EngineeringGdańsk University of TechnologyGdanskPoland

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