In this work, a dynamic calculation of the thermodynamics of the considered reactions in ADM1 highlighted the role of hydrogen on VFA degradation. In ADM1, a hydrogen inhibition factor based on its concentration is used to represent the same effect. Our comparison of a thermodynamic-based against the simpler concentration-based inhibition factor during dynamic simulations validates the ADM1 approach. Our results also show the need to correct the VFAs Gibbs energies with temperature if a thermodynamic-based inhibition is to be used. The thermodynamics of butyrate degradation under both experimental and simulated conditions suggest the unfeasibility of the reaction and the need for a revision of the current pathway biochemistry.
CITATION STYLE
Patón, M., & Rodríguez, J. (2017). Dynamic thermodynamic simulation of ADM1 validates the hydrogen inhibition approach and suggests an unfeasible butyrate degradation pathway. In Lecture Notes in Civil Engineering (Vol. 4, pp. 260–265). Springer. https://doi.org/10.1007/978-3-319-58421-8_41
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