Title:
Birch Biochar Boost: Optimizing Biogas Production from Biowaste with Enhanced Hydrogen Sulphide Management
Author(s):
Malk, V., Saario, T., Jafari, S., Soininen, H., Keijsers, E.
Document(s):
Paper
Poster
Abstract:
The use of woody biochar can enhance methane production and aid in hydrogen sulphide removal in the biogas process. Its impact depends on characteristics like feedstock, and pyrolysis processing conditions like temperature. Laboratory experiments tested the effect of birch-based biochar on the biogas process. Experimental sets examined 1%, 5%, and 10% biochar additions relative to the mass of the biowaste. Biogas experiments were conducted in using 15-L pilot-scale batch reactors. Anaerobic digestion occurred under mesophilic conditions. Biochar quantity and quality is important. In the experimental sets, 1% addition of biochar slightly increased biogas production potential, while methane production potential remained nearly the same as with biowaste alone. The birch-based biochar tested in the experiments effectively removed hydrogen sulphide when directly mixed with the material to be digested. The amount of harmful hydrogen sulphide was reduced by up to one-third.
Keywords:
bioenergy, biogas, methane, organic waste, biochar
Topic:
Biomass Conversion for Bioenergy
Subtopic:
Anaerobic digestion for biogas and biomethane production
Event:
32nd European Biomass Conference and Exhibition
Session:
4CV.10.17
Pages:
604 - 606
ISBN:
978-88-89407-24-0
Paper DOI:
10.5071/32ndEUBCE2024-4CV.10.17
Price:
FREE
