izvorni znanstveni rad
The increasing need for sustainable energy sources has led to a growing
interest in enhancing biogas production through innovative strategies. This
study investigates the effect of bioaugmentation on the anaerobic digestion of
miscanthus, comparing non-bioaugmented bioreactors with miscanthus
(NBBM) and bioaugmented bioreactors with miscanthus (BBM) in a 30-day
continuous anaerobic digestion (AD) process. Key process parameters,
including biogas and methane yield were monitored to assess the impact of
bioaugmentation. The results revealed that bioaugmentation significantly
increased both biogas and methane yield. Results showed that BBM achieved a
biogas yield of 444.12 mL g⁻¹ VS, 2.24 times higher than the 198.57 mL g⁻¹ VS
recorded for NBBM. Similarly, methane yield values for BBM (263.47 mL g⁻¹
VS) were 2.72 times higher than those for NBBM (97.02 mL g⁻¹ VS).
Additionally, methane content in the biogas was enhanced from 49 % for NBBM
to 54 % for BBM, demonstrating improved biogas quality. These findings
highlight the potential of bioaugmentation to optimize the anaerobic digestion
of miscanthus, offering a sustainable and effective approach to enhancing
biogas production from lignocellulosic biomass. Future research should focus
on long-term stability studies, the economic feasibility of bioaugmentation at
larger scales, and exploring the impact of different bioaugmentation consortia
on process efficiency.
bioaugmentation; anaerobic digestion; miscanthus; biogas production; enhanced methane yield
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