Modeling, Estimation and Optimal Control Design of a Biologica Wastewater Treatment Process

The aim of this work is to give a mathematical model, estimate and control a biological wastewater treatment process. The paper illustrates the use of a complex nonlinear model in the design of a software sensor and two predictive control techniques. Process modelling describes the complete dynamics of autotrophic and heterotrophic biomasses, biodegradable organic matters. The control approach structure is combined with the estimation algorithm, for the on-line reconstruction of unmeasured biological states and unknown parameters of the bioprocess. The efficiency of both the control and estimation schemes are demonstrated via computer simulations.