Some On Adaptive Control Of A Wastewater Biodegradation Process

Abstract

In this paper some nonlinear adaptive control strategies are developed for a depollution biotechnological process. This bioprocess is in fact a biomethanation process - wastewater biodegradation with production of methane gas that takes place inside a Continuously Stirred Tank Bioreactor. Dynamical feedback controllers, nominally achieving output stabilization via
exact linearization, are obtained by means of adaptive control ideas. The adaptive controllers are obtainable via standard, direct, overparametrized adaptive control techniques. A high gain estimation strategy is also used for identification of unknown kinetics of the bioprocess. Computer simulations are included in order to evaluate the performances of the adaptive controlled bioprocess.