In this paper we present the application of adaptive predictive expert controllers to dissolved oxygen (DO) control in the aerobic reactors of a wastewater treatment plant. The control system described in this paper consists of adaptive predictive expert control loops complemented by optimisation logic. The controllers successfully cope with nonlinearity and changing operating conditions of the process by predicting the evolution of the controlled variable and adapting to changes in the process dynamics. This results in more precise and stable DO control, offering many benefits. The complementary optimisation logic maintains the air pressure in the common collector at the lowest possible level, enabling adequate DO control and thus considerably reducing energy consumption.
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Research Article|
September 01 2011
Adaptive predictive expert control of dissolved oxygen concentration in a wastewater treatment plant
G. Kandare;
1Department of Systems and Control, Jožef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia
E-mail: [email protected]
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A. Nevado Reviriego
A. Nevado Reviriego
2Escuela Técnica Superior de Ingenieros Industriales, Universidad Nacional de Educación a Distancia, Juan del Rosal 12, 28040 Madrid, Spain
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Water Sci Technol (2011) 64 (5): 1130–1136.
Article history
Received:
April 22 2010
Accepted:
July 27 2010
Citation
G. Kandare, A. Nevado Reviriego; Adaptive predictive expert control of dissolved oxygen concentration in a wastewater treatment plant. Water Sci Technol 1 September 2011; 64 (5): 1130–1136. doi: https://doi.org/10.2166/wst.2011.276
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