A Fast Extremum-Seeking Approach for the Methanisation of Organic Waste in an Anaerobic Bioreactor

Alejandro Vargas1, Alfonso Sepúlveda-gálvez2, Julián David Barrios-pérez3

  • 1Instituto de Ingenieria UNAM
  • 2IIngen-UNAM
  • 3Instituto de Ingeniería, UNAM

Details

11:45 - 12:20 | Wed 24 Apr | Baia Norte | WeS3.7

Session: Poster C

11:45 - 12:20 | Wed 24 Apr | Hallway | WeS3.7

Session: All Posters Session

Abstract

We consider the AM2 mechanistic mathematical model of an anaerobic bioreactor, where the controlled input is the dilution rate and the measured output is the methane outflow rate. We show that a control strategy based on switching between two dilution rates is able to bring the trajectories close to the optimal steady-state where the output is maximized; this is based on a recent result for designing a fast extremum-seeking controller. Experimental results from a laboratory-scale bioreactor treating agave bagasse hydrolysates are used to find model parameters and to show the appearance of the predicted phenomenon.