Feasibility of successive hydrogen and methane production: Effects of temperature and organic loads on energy potential and microbial dynamics

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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.accessioned2025-08-21T17:44:13Z-
Data de disponibilização: dc.date.available2025-08-21T17:44:13Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.ibiod.2024.105955-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/300231-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/300231-
Descrição: dc.descriptionThis study aims to assess the co-digestion of Cassava Wastewater (CW) and glycerol in a two-stage process using fluidized bed reactors (AFBR), verifying the effect of organic loading rate (OLR) and temperature (mesophilic [SMR] and thermophilic [STR]) in sequential reactors on CH4 production. The OLR ranged from 1.2 to 15 g COD.L−1.d−1 and the hydraulic retention time (HRT) was set at 20 h. The mesophilic sequential reactor (MSR) (average temperature of 30 °C) showed greater tolerance to high OLR and its best MPR was 101.12 mL of CH4.d−1.L−1 h−1, obtained at a OLR of 15 g COD.L−1.d−1). The maximum yield was 341.10 mL of CH4.g−1CODcons, found at the OLR of 1.2 g COD.L−1.d−1. The sequential thermophilic reactor (STR) showed the maximum yield and MPR of 333.03 mL of CH4.g−1CODcons (1.2 g COD.L−1.d−1) and 58.84 mL of CH4.d− 1.L−1 h−1 (12 g COD.L−1.d−1), respectively. Through the massive sequencing analysis of the 16S rRNA gene, it was possible to observe a greater diversity of microorganisms in the TSR than in the MSR. A predominance of acetoclastic microorganisms was observed, with the genera Methanobacterium, Methanosarcina and Methanobrevibacter being the most abundant in both reactors. The two-stage system composed of mesophilic acidogenic reactor + MSR was more suitable for the co-digestion of CW and glycerol than the acidogenic reactor + TSR. These results support the notion of standard operating conditions at the industrial plant, where the cassava processing process is carried out at room temperature (25–30 °C).-
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.descriptionBionenergy 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.descriptionBionenergy 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.relationInternational Biodeterioration and Biodegradation-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBiodiesel byproduct-
Palavras-chave: dc.subjectMethane-
Palavras-chave: dc.subjectMicrobial community-
Palavras-chave: dc.subjectTwo-stage system-
Palavras-chave: dc.subjectWastewater treatment-
Título: dc.titleFeasibility of successive hydrogen and methane production: Effects of temperature and organic loads on energy potential and microbial dynamics-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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