Muratcobanoglu, HamdiGokcek, Oznur BegumMert, Ruhullah AliZan, RecepDemirel, Sevgi2024-11-072024-11-0720211369-703X1873-295Xhttps://doi.org/10.1016/j.bej.2021.108080https://hdl.handle.net/11480/14235At a time when there is a surge in demand for increasing renewable energy production, boosting biomethane production per unit organic matter/waste has become a big challenge and necessity. In this study, the effect of rGO addition on biomethane production from cow manure under mesophilic-batch conditions was investigated. Biomethane production was increased via rGO supplementation at appropriate concentrations. The highest biomethane production, which was 335 mL/gVS(ad) (65 % increase), was obtained by adding 20 mg/L rGO (CM20) while rGO addition slightly increased (up to 5.4 %) the CH4 content of biogas. The microbial community analysis indicated that via rGO supplementation, the dominant bacteria changed from Levilinea to Candidatus Cloacamonas and a more diverse archaeal community was formed. According to this study results, rGO supplementation could be used at biogas plants to boost renewable energy production.eninfo:eu-repo/semantics/closedAccessAnaerobic digestionCattle manureReduced graphene oxideMicrobial communityRenewable energyArticle17310.1016/j.bej.2021.1080802-s2.0-85107263160Q2WOS:000667152700008Q2