Development of Optimal Control systems for wastewater treatment system

This study aimed at developing and evaluating techniques for the development of automatic control systems for wastewater treatment systems involving activated sludge process. The proposed control systems were established from the application of Optimal Control Theory, considering the use of a simplified dynamic model of the activated sludge process. Computer simulations were used to assess the performance of the control systems proposed. The results showed that the dynamic model of the activated sludge process utilized in this study, obtained by simplifying a very well accepted model, according to the current technical literature, was stable and suitable for the definition of control systems.