Room: Poster Area
Date: Thursday, 21 May 2026
Time: 09:00 - 10:00 CEST
Session code 4CV.1
Biogas and biomethane production
Optimization of Hydrogen Feeding Strategies via Membrane Contactor to Enhance Anaerobic Digestion Efficiency under Mesophilic Conditions
Short Introductive summary
This study investigates the optimization of hydrogen feeding strategies in in situ biological methanation integrated with the anaerobic digestion of kitchen waste under mesophilic conditions. Hydrogen is supplied via a PDMS membrane contactor, enabling accurate control of gas transfer and reducing process disturbances. The research examines how the timing and amount of hydrogen addition affect microbial adaptation, process stability, and methane production. Early observations indicate that adding hydrogen at the start of fermentation can temporarily inhibit methanogenesis, whereas delaying hydrogen feeding results in more stable, efficient methane production. The results are expected to aid in developing optimized, membrane-based biogas upgrading systems, supporting the broader use of power-to-methane technologies for renewable biomethane generation and sustainable waste utilization.
Presenter
Veronika KALAUZ-SIMON
University of Pannonia, HUNGARY
Presenter's biography
Veronika Kalauz-Simon is a PhD researcher at the University of Pannonia. Her research focuses on anaerobic digestion of kitchen waste and biomethane production. She investigates hydrogen addition via membrane contactors to improve methane yield and process performance.
Biographies and Short introductive summaries are supplied directly by presenters and are published here unedited
Co-authors:
P. Komáromy, University of Pannonia, Veszprém, HUNGARY
N. Nemestóthy, University of Pannonia, Veszprém, HUNGARY
T. Rózsenberszki, University of Pannonia, Veszprém, HUNGARY
K. Bélafi-Bakó, University of Pannonia, Veszprém, HUNGARY
Session reference: 4CV.1.18