Synergizing sugarcane waste valorization: Optimization of two-stage anaerobic co-digestion for enhanced methane recovery and organic matter removal

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Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade Federal de São Carlos (UFSCar)-
Autor(es): dc.creatorRibeiro, Alexandre Rodrigues-
Autor(es): dc.creatorDevens, Kauanna Uyara-
Autor(es): dc.creatorCamargo, Franciele Pereira-
Autor(es): dc.creatorSakamoto, Isabel Kimiko-
Autor(es): dc.creatorVaresche, Maria Bernadete Amâncio-
Autor(es): dc.creatorSilva, Edson Luiz-
Data de aceite: dc.date.accessioned2025-08-21T15:27:41Z-
Data de disponibilização: dc.date.available2025-08-21T15:27:41Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-11-30-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.indcrop.2024.119297-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/300183-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/300183-
Descrição: dc.descriptionMultiple strategies have been used in anaerobic digestion of effluents aiming to enhance the efficiency of the methane (CH4) recovery process, where co-digestion and the two-stage process emerge as prominent methods. In this context, this study aimed at evaluating the co-digestion of sugarcane vinasse and molasse in a two-stage process using anaerobic fluidized bed reactors (AFBR), verifying the effect of increasing the organic loading rate (OLR) (5–22.5 kg COD.m−3.d−1) and temperature in the second stage methanogenic reactor. Regarding the two-stage process, sugarcane vinasse and molasses fermentation demonstrated the maximum energy potential (E.P) of 57.08 kJ.d−1 (7.5 g COD.L−1). Regarding the methanogenic sequential reactors, organic matter removal reached high values (up to 84.5 % in a thermophilic sequential reactor (TSR); up to 84.5 % in a mesophilic sequential reactor (MSR)). The highest CH4 yield (MY) of 306.77 ± 38.84 mL CH4.g−1 COD rem was observed in MSR (9 kg COD.m−3.d−1). Meanwhile, the maximum value of MPR (3.8 ± 0.5 L CH4.L−1.d−1) was observed in TSR (21 kg COD.m−3.d−1). Regarding the Archaea domain, a predominance of hydrogenotrophic microorganisms could be identified, in which the genera Methanobacterium and Methanothermobacter were the most abundant in MSR and TSR, respectively. This study demonstrates that anaerobic digestion of sugarcane vinasse and molasses enhances anaerobic treatment using two-stage AFBRs. It not only produces CH4 but also generates hydrogen and high-value products through an acidogenic reactor. This research marks a significant advancement in managing sugarcane processing by-products, offering promising approaches to maximize biogas production and improve pollutant removal efficiency.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionDepartment of Hydraulics and Sanitation São Carlos School of Engineering University of São Paulo, Av. João Dagnone, 1100 - Jd. Santa Angelina, SP-
Descrição: dc.descriptionBioenergy Research Institute (IPBEN) UNESP São Paulo State University, SP-
Descrição: dc.descriptionDepartment of Chemical Engineering Federal University of São Carlos, Rod. Washington Luis, km 235, SP-
Descrição: dc.descriptionBioenergy Research Institute (IPBEN) UNESP São Paulo State University, SP-
Descrição: dc.descriptionCAPES: 001-
Descrição: dc.descriptionFAPESP: 2015/06246-7-
Descrição: dc.descriptionFAPESP: 2022/10615-1-
Descrição: dc.descriptionCNPq: 308987/2023-3-
Descrição: dc.descriptionCNPq: 422223/2018-2-
Idioma: dc.languageen-
Relação: dc.relationIndustrial Crops and Products-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAnaerobic biorefinery-
Palavras-chave: dc.subjectMetabolic pathways-
Palavras-chave: dc.subjectMetabolic prediction-
Palavras-chave: dc.subjectRenewable energy-
Palavras-chave: dc.subjectTemperature effects-
Título: dc.titleSynergizing sugarcane waste valorization: Optimization of two-stage anaerobic co-digestion for enhanced methane recovery and organic matter removal-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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