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Modeling of biogas production from hydrothermal carbonization products in a continuous anaerobic digester.

Authors :
DEKHICI, BENAISSA
BENYAHIA, BOUMEDIENE
CHERKI, BRAHIM
FIORI, LUCA
ANDREOTTOLA, GIANNI
Source :
ACM Transactions on Modeling & Computer Simulation; Oct2024, Vol. 34 Issue 4, p1-19, 19p
Publication Year :
2024

Abstract

The coupling between anaerobic digestion and hydrothermal carbonization (HTC) is a promising alternative for sustainable energy production. This study presents a dynamic model tailored for a lab-scale anaerobic digester operating on HTC products, specifically hydrochar and HTC liquor derived from sewage and agro-industrial digestate. Leveraging a modified version of the Anaerobic Model 2 (AM2), our simplified model of four states integrates pH and biomass decay rates into biomass kinetics. Simulation results of the mode were compared with experimental data collected over 164 days from the digester. The obtained results have proven the ability of the proposed model to predict the trend of the biogas production as well as important measured outputs of the bioreactor. The developed model could be used to control and optimize the performance of the digester, which provides potential for bioenergy production from waste streams such as digestate and digestate treated through the HTC process. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
10493301
Volume :
34
Issue :
4
Database :
Complementary Index
Journal :
ACM Transactions on Modeling & Computer Simulation
Publication Type :
Academic Journal
Accession number :
179790530
Full Text :
https://doi.org/10.1145/3680281