Method for calculating an operating parameter of a digester in the presence of at least one inhibitor
The method addresses the challenge of temperature-influenced inhibitory compounds in anaerobic digestion by calculating digester operating parameters based on pH, microorganism kinetics, and inhibitory compound concentrations, improving biogas production and digester efficiency.
FR3134823B1Active Publication Date: 2026-06-26SUEZ
Patent Information
- Authority / Receiving Office
- FR · FR
- Patent Type
- Patents
- Current Assignee / Owner
- SUEZ
- Filing Date
- 2022-04-21
- Publication Date
- 2026-06-26
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Abstract
A method for calculating (1) an operating parameter of a digester adapted to produce digestate and biogas containing methane, said method comprising the following steps: - A step of defining (2) a concentration range for an input to the digester and a temperature range for the operation; - A preliminary estimation step (3) of an intermediate concentration; - A determination step (4) of the pH within the digester; - A estimation step (5) of a concentration of at least one inhibitory compound present within the digester; - A identification step (6) of one or more microorganisms with limiting kinetics present in the digester; - A prediction step (7) of the maximum growth rate of the microorganism(s) identified; - A identification step (8) of the maximum permissible load in the digester;and - A calculation step (9) of said digester operating parameter as a function of the maximum permissible load identified. Figure of the abstract: Figure 1;
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