Spent Mushroom Substrate as a Renewable Energy Resource: Evaluating Its Biogas Production Potential

Andrew Ravlikovsky, Maria Nazaré Coelho Pinheiro (), Petro Kucheruk and Lyudmyla Symochko
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Andrew Ravlikovsky: Faculty of Biology, Uzhhorod National University, 88000 Uzhhorod, Ukraine
Maria Nazaré Coelho Pinheiro: Polytechnic University of Coimbra, 3045-093 Coimbra, Portugal
Petro Kucheruk: Institute of Engineering Thermophysics of the National Academy of Sciences of Ukraine, 03057 Kyiv, Ukraine
Lyudmyla Symochko: Faculty of Biology, Uzhhorod National University, 88000 Uzhhorod, Ukraine

Sustainability, 2025, vol. 17, issue 5, 1-14

Abstract: Spent mushroom substrate (SMS), often overlooked as waste despite its richness in organic matter and mineral micronutrients, is increasingly recognized as a versatile resource for various applications. This study examines the potential of SMS as a feedstock for biogas production. A periodic mesophilic fermentation regime at 36.0 ± 0.1 °C was selected to conduct the experiments, after mixing the substrate with the inoculum, over a period of 38 days. The experimental results showed an average biogas yield of 292.7 Nm 3 /t of fresh SMS, with a methane concentration of 66.2%, making SMS a competitive resource for renewable energy production. This approach not only offers economic benefits for agricultural and energy sectors, but also supports environmental sustainability by promoting waste reduction and resource valorization.

Keywords: biogas production; feedstock; spent mushroom substrate (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2025
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