Dynamical model development and parameter identification for an anaerobic wastewater treatment process

Bernard, O.;Hadj-Sadok, Z;Dochain, Denis;Genovesi, A;Steyer, JP
(2001) Biotechnology and Bioengineering — Vol. 75, n° 4, p. 424-438 (2001)

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Authors
  • Bernard, O.
    Author
  • Hadj-Sadok, Z
    Author
  • Dochain, DenisUCLouvain
    Author
  • Genovesi, A
    Author
  • Steyer, JP
    Author
Abstract
This paper deals with the development and the parameter identification of an anaerobic digestion process model. A two-step (acidogenesis-methanization) mass-balance model has been considered. The model incorporates electrochemical equilibria in order to include the alkalinity, which has to play a central role in the related monitoring and control strategy of a treatment plant. The identification is based on a set of dynamical experiments designed to cover a wide spectrum of operating conditions that are likely to take place in the practical operation of the plant. A step by step identification procedure to estimate the model parameters is presented. The results of 70 days of experiments in a 1-m(3) fermenter are then used to validate the model. (C) 2001 John Wiley & Sons, Inc.
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