Biotechnology and Bioengineering · 2001 · 611 citations · 25 references
The study develops and identifies parameters for an anaerobic digestion process model. A two‑step (acidogenesis–methanogenesis) mass‑balance model incorporating electrochemical equilibria for alkalinity is parameterised through a step‑by‑step procedure using dynamical experiments that span a wide range of operating conditions. Validation with 70 days of data from a 1‑m³ fermenter confirms the model’s predictive capability. © 2001 John Wiley & Sons, Inc., Biotechnol Bioeng 75:424–438.
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. © 2001 John Wiley & Sons, Inc. Biotechnol Bioeng 75: 424–438, 2001.
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