Work

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

Year: 2022

Type: conference-paper

Abstract: 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.

Source: HAL

Authors: Coutu, Arnaud, Liu, Xiaojun, Bourget, Quentin, Mottelet, Stéphane, Hernandez-Shek, Manuel Alejandro, Guérin-Rechdaoui, Sabrina, Rocher, Vincent, Pauss, André, Ribeiro, Thierry

Institutions: UniLaSalle, Université de Technologie de Compiègne, Transformations Intégrées de la Matière Renouvelable, Syndicat Interdépartemental pour l'Assainissement de l'Agglomération Parisienne

Language: English

Topic: Anaerobic Digestion and Biogas Production

Subfield: Renewable Energy, Sustainability and the Environment

Field: Energy

Domain: Physical Sciences

SDG: Clean water and sanitation

Open Access status: green

OpenAlex ID: W4387963243

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