Semi-continuous anaerobic co-digestion of flotation sludge from broiler chicken slaughter and sweet potato: Nutrients and energy recovery

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorAgricultural Engineering Graduate Program-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorDamaceno, Felippe Martins-
Autor(es): dc.creatorBuligon, Eduardo L.-
Autor(es): dc.creatorPires Salcedo Restrepo, Juan C.-
Autor(es): dc.creatorChiarelotto, Maico-
Autor(es): dc.creatorNiedzialkoski, Rosana Krauss-
Autor(es): dc.creatorde Mendonça Costa, Luiz Antonio-
Autor(es): dc.creatorde Lucas Junior, Jorge-
Autor(es): dc.creatorde Mendonça Costa, Monica Sarolli Silva-
Data de aceite: dc.date.accessioned2025-08-21T17:24:49Z-
Data de disponibilização: dc.date.available2025-08-21T17:24:49Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2019-09-15-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.scitotenv.2019.05.314-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/228684-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/228684-
Descrição: dc.descriptionEnergy production based on the proper allocation of environmental liabilities is in line with the concept of sustainability. Flotation sludge (S) is a type of waste derived from the physical treatment of the wastewater generated in significant quantities during chicken slaughter in Brazil. If not treated, this wastewater may contribute to pollution, but further treatment provides clean energy and nutrient recycling. The present study aimed at evaluating the reduction of (S) organic load by means of mono and co-digestion with sweet potatoes (P) while promoting its conversion into energy (methane) and nutrients (digestate). Semi-continuous reactors (60 L capacity) were used with a hydraulic retention time of 25 days. The reactors were fed daily with 2.4 L consisting of 60% digestate recirculation, 40% non-chlorinated water and 4.5% total solids (TS). Using nine reactors and six progressive periods, eleven conditions were evaluated with three replicates each. The percentages of (P) and (S) varied from 0 to 100. The best observed condition in terms of energy recovery and TS removal was 60% of P + 40% of S (p ≤ 0.05), as it presented values of at least an increase of 92% in total biogas volume, an increase of 123% in specific methane production, an increase of 98% in specific methane yield and an increase of 44% in TS removal efficiency compared to mono-digestions. The fertilizer potential of the digestate generated in the different conditions was calculated and evaluated according to the area of (P) production. The results varied from 3.6 to 10.8 ha of (P) using 100 m3 of digestate. A multivariate analysis showed that higher amounts of (P) in substrate composition favor energy recycling while higher concentrations of (S) enhance the production of a digestate with valuable agronomic characteristics.-
Descrição: dc.descriptionResearch Group on Water Resources and Environmental Sanitation Western Paraná State University Agricultural Engineering Graduate Program, Rua Universitária, 2069, Jardim Universitário-
Descrição: dc.descriptionDepartment of Rural Engineering São Paulo State University, College of Agricultural and Veterinary Sciences at Jaboticabal-
Descrição: dc.descriptionDepartment of Rural Engineering São Paulo State University, College of Agricultural and Veterinary Sciences at Jaboticabal-
Formato: dc.format773-781-
Idioma: dc.languageen-
Relação: dc.relationScience of the Total Environment-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectCo-digestion-
Palavras-chave: dc.subjectInhibitors-
Palavras-chave: dc.subjectMono-digestion-
Palavras-chave: dc.subjectResidues from chicken slaughter-
Palavras-chave: dc.subjectSweet potato-
Título: dc.titleSemi-continuous anaerobic co-digestion of flotation sludge from broiler chicken slaughter and sweet potato: Nutrients and energy recovery-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.