Room: Poster Area
Date: Thursday, 21 May 2026
Time: 09:00 - 10:00 CEST
Session code 4CV.1
Biogas and biomethane production
Influence of Biochar Feedstock and Dosage on Sulfur Dynamics and Buffering Behavior in Anaerobic Digestion
Short Introductive summary
Biochar supplementation in anaerobic digestion was evaluated using wood- and grass-derived materials at different dosages to assess their effects on hydrogen sulfide formation and buffering behavior. Methane production was not affected; however, wood-derived biochar achieved up to 49.9% reduction in H?S, while grass-derived biochar enhanced buffering capacity and reduced volatile fatty acids. The results demonstrate that biochar can selectively improve biogas quality and process stability, depending on feedstock and dosage, supporting its potential as a targeted additive in anaerobic digestion systems.
Presenter
Rubens PEREZ CALEGARI
Aarhus University, Biological and Chemical Engineering Dpt., DENMARK
Biographies and Short introductive summaries are supplied directly by presenters and are published here unedited
Co-authors:
M. Ambye-Jensen, Aarhus University, DENMARK
C. Hermansson, Hushållnings Sällskapet, Länghem, SWEDEN
M. Vedel Wegener Kofoed, Aarhus University, DENMARK
Session reference: 4CV.1.20