RESEARCH AND DESIGN OF ANAEROBIC REACTORS FOR EFFECTIVE FERMENTATION OF AGRICULTURAL RESIDUE
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https://doi.org/10.5281/zenodo.21883911##article.subject##:
halophyte raw materials, methanogenic bacteria, methane, biomethane, salsola, suaeda, climacoptera##article.abstract##
This article presents the results of research into the development of efficient anaerobic digesters for processing
dense agricultural residues, with a focus on halophytic plant biomass. It is demonstrated that optimizing the reactor design
and process conditions can significantly increase biogas yields when processing mineral-rich plant substrates. Experiments
have shown that processing halophytic plants (Karelinia caspia, Atriplex nitens, Glycyrrhiza glabra, and Suaeda
paradoxa) under mesophilic conditions (35°C) results in a biogas yield of 350 ml per 1 g of dry substrate mass over 25
days. Microbial community analysis revealed the optimal ratio of methanogenic bacteria: 45-50% of the total methanogens
are Methanosarcina, 30-35% are Methanosaeta, and 15-20% are Metanomicrobium. The developed technology
ensures anaerobic digester productivity of 15-20 m³ of biogas per 1 m³ of reactor volume per day with a methane content
of over 55%, guaranteeing a positive energy balance for the process. Microbial community analysis revealed the optimal
ratio of methanogenic bacteria: 45-50% of the total methanogens are Methanosarcina, 30-35% are Methanosaeta, and
15-20% are Metanomicrobium. The developed technology ensures anaerobic digester productivity of 15-20 m³ of biogas
per 1 m³ of reactor volume per day with a methane content of over 55%, guaranteeing a positive energy balance for the
process
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