An adaptive control strategy for a class of recycled depollution bioprocesses

Abstract

This paper presents the design of a nonlinear multivariable adaptive control strategy for a class of wastewater depollutionbioprocesses that are carried out in recycle bioreactors. The adaptive control structure is achieved by combining a linearizing controllaw with a new state observer and a parameter estimator, which play the role of the software sensors for on-line estimation of biologicalstates and parameter variables of interest of the bioprocess. Simulation results are included to illustrate the performance of bothestimation and control algorithms.

Keywords

• Nonlinear systems
• Adaptive control
• On-line estimation
• Wastewater bioprocess