Title :
Optimal PID control of the dissolved oxygen concentration in the wastewater treatment plant
Author :
Tzoneva, Raynitchka
Author_Institution :
Cape Peninsula Univ. of Technol., Bellville
Abstract :
The biological process for treatment of the municipal wastewater, the Activated Sludge process, is considered. The efficient performance of the water treatment process depends on the optimal control of the concentration of oxygen in the aeration tanks. This paper describes application of two standard PID controllers tuning methods for control of the nonlinear dissolved oxygen concentration process as a part of an adaptive optimal control strategy. Procedures for real time implementation of the tuning methods and the calculated control in the frameworks of Adroit SCADA and Matlab/Simulinks software are described. The calculations are done for COST benchmark and the University of Cape Town process structures and the ASM1 biological model.
Keywords :
chemical variables control; environmental science computing; industrial plants; optimal control; three-term control; tuning; wastewater treatment; Adroit SCADA; Matlab/Simulinks software; University of Cape Town; activated sludge process; aeration tanks; biological process; dissolved oxygen concentration; optimal PID control; tuning methods; wastewater treatment plant; Adaptive control; Application software; Biological processes; Cities and towns; Costs; Optimal control; Programmable control; Sludge treatment; Three-term control; Wastewater treatment; Activated Sludge Process; Dissolved oxygen control; PID tuning; Real Time Optimal Control; SCADA;
Conference_Titel :
AFRICON 2007
Conference_Location :
Windhoek
Print_ISBN :
978-1-4244-0987-7
Electronic_ISBN :
978-1-4244-0987-7
DOI :
10.1109/AFRCON.2007.4401608
