Two-stage versus single-stage anaerobic co-digestion on methane synthesis: Energy prospects and microbial community

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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.creatorDevens, Kauanna Uyara-
Autor(es): dc.creatorRibeiro, Alexandre Rodrigues-
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.accessioned2025-08-21T22:39:16Z-
Data de disponibilização: dc.date.available2025-08-21T22:39:16Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2025-04-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.psep.2025.106884-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/299682-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/299682-
Descrição: dc.descriptionCassava processing wastewater (CW), a byproduct generated during cassava processing activities, and glycerol (Gly), a byproduct of biodiesel production processes, have a high concentration of organic matter and digestibility, which provides them with great potential for hydrogen (H2) and methane (CH4) generation. This study evaluated the co-digestion of cassava wastewater and glycerol in a single-stage versus two-stage process using a fluidized bed reactor (AFBR), i.e., a mesophilic acidogenic reactor (MAR) + a sequential mesophilic reactor (SMR) and a mesophilic methanogenic reactor (MMR), operated at mesophilic temperature (30°C). Thus, the effect of increasing the organic matter concentration of 1–12.5 g [chemical oxygen demand] COD.L−1 (50 %:50 % on a COD basis) on CH4 production was verified. Co-digestion consistently yielded methane production in both single and two-stage processes. The two-stage process stood out as the single stage, providing a maximum CH4 Yield (MY) of 341.10 mL CH4. gCOD−1cons and CH4 production rate (MPR) of 168.23 mL of CH4.L−1.h−1, respectively. Regarding the microbial community, the methanogens Methanobacterium and Methanobrevibacter prevailed. Moreover, the two-stage and single-stage presented energy potentials of 161.23 kJ.d−1 and 54.26 kJ.d−1, in that order. Upon comparative analysis of the performance between two-stage and single-stage methanogenic reactors, it becomes apparent that the co-digestion of CW and Gly in a two-stage configuration exhibited enhancements over the single-stage.-
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.descriptionSão Carlos School of Engineering University of São Paulo (EESC/USP), Av. Trabalhador São Carlense 400, 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.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.relationProcess Safety and Environmental Protection-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAnaerobic fluidized bed reactor-
Palavras-chave: dc.subjectEnergy potential-
Palavras-chave: dc.subjectGlycerin-
Palavras-chave: dc.subjectMethanobacterium-
Palavras-chave: dc.subjectTapioca starch wastewater-
Título: dc.titleTwo-stage versus single-stage anaerobic co-digestion on methane synthesis: Energy prospects and microbial community-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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