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Communication Dans Un Congrès Année : 2022

Novel approaches to modeling dry anaerobic digestion by considering water porosity evolution

Résumé

Our previous findings revealed the distribution and evolution of three different pore water porosity types (microscopic, mesoscopic and macroscopic porosities) during dry anaerobic digestion (D-AD). Two novel and different models considering this phenomenon were developed. The first one combined the AM2 biochemical model with saturated Mobile-Immobile water model (AM2-MIM). The model considered the interactions of mass transfer between mobile phase (macroporosity) and immobile phase (microporosity + mesoporosity). The second model coupled this new model with a biofilm diffusion model to consider separately microporosity and mesoporosity (AM2-MIM+Biofilm), simulating the diffusion and the transformation of hydrolyzed substrates within the biofilm (mesoporosity). Both models allow a better understanding of the microbiological and hydrodynamic phenomena during D-AD processes.
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hal-04240652 , version 1 (16-10-2023)

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  • HAL Id : hal-04240652 , version 1

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Arnaud Coutu, Xiaojun Liu, Quentin Bourget, Stéphane Mottelet, Manuel Alejandro Hernandez-Shek, et al.. Novel approaches to modeling dry anaerobic digestion by considering water porosity evolution. 17th IWA World Conference on Anaerobic Digestion, International Water Association IWA, Jun 2022, ANN ARBOR- Michigan, United States. ⟨hal-04240652⟩
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