Dry anaerobic digestion modelling: Parameter sensitivity - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Canadian Journal of Chemical Engineering Année : 2015

Dry anaerobic digestion modelling: Parameter sensitivity

Résumé

A model dedicated to dry anaerobic digestion process was previously developed. This model was based on the ADM1 model and modified to take into account the specificity of dry anaerobic media. The objective of the work presented here was to study the sensitivity to the model of 2 parameters. The first parameter (kLa) was related to mass transfer of the biodegradation products (CH4, CO2, H2) from liquid phase to gas phase. Two gas production behaviours were pointed out, depending on kLa value and corresponding to limiting or non‐limiting transfer rate. A kLa value of 5 d−1 marked the transition. The second parameter (kmX) was linked to biological kinetic reactions. The sensitivity of kmX was important: a variation of ±10 % of its value affected clearly the kinetic consumption of the substrate. A method to determine those parameters was presented. This method was then used to determine both biological kinetic parameter and mass transfer coefficient from batch experimental data of methane production with acetate as organic substrate at two different moisture contents.

Dates et versions

hal-01820988 , version 1 (22-06-2018)

Identifiants

Citer

Hassen Benbelkacem, Julien Bollon, Rémy Gourdon, Pierre Buffière. Dry anaerobic digestion modelling: Parameter sensitivity. Canadian Journal of Chemical Engineering, 2015, 93 (2), pp.386 - 390. ⟨10.1002/cjce.22089⟩. ⟨hal-01820988⟩
62 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More