Abstract
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.
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Acknowledgements
The Masdar Institute of Science & Technology (SSG2015-0057) and the Government of Abu Dhabi.
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Patón, M., Rodríguez, J. (2017). Dynamic Thermodynamic Simulation of ADM1 Validates the Hydrogen Inhibition Approach and Suggests an Unfeasible Butyrate Degradation Pathway. In: Mannina, G. (eds) Frontiers in Wastewater Treatment and Modelling. FICWTM 2017. Lecture Notes in Civil Engineering , vol 4. Springer, Cham. https://doi.org/10.1007/978-3-319-58421-8_41
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DOI: https://doi.org/10.1007/978-3-319-58421-8_41
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