Solubility, biodegradability, and methane production capacity of waste sludge pretreated by thermal prehydrolysis, electrooxidation and bioaugmentation (Atena Editora)

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MetadadosDescriçãoIdioma
Autor(es): dc.contributor.authorBRIONES, MARIA TERESA CASTAÑEDA-
Autor(es): dc.contributor.authorVARGAS, PATRICIA CATALINA LÓPEZ-
Autor(es): dc.contributor.authorMELÉNDEZ, JORGE ESTRADA-
Autor(es): dc.contributor.authorESPINOZA-CASTAÑEDA, MARISOL-
Data de aceite: dc.date.accessioned2023-01-24T16:11:26Z-
Data de disponibilização: dc.date.available2023-01-24T16:11:26Z-
Data de envio: dc.date.issued2023-01-04-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/720424-
Resumo: dc.description.abstractWaste sludge from wastewater treatment plants is a problem due to their high production, treatment, and management. The aim of this research was to compare the effect of three pretreatments on residual sludge to increase the degree of solubilization and the specific production of methane in subsequent anaerobic digestion. Thermal prehydrolysis (TP) of the sludge at 90 °C was performed for 90 minutes, electrooxidation of the sludge (EOP) using platinum electrodes with a current intensity of 400 mA for 45 minutes and the addition of 9 mL of specific strains of acidogenic bacteria, bioaugmentation pretreatment (BP). The degree of solubilization was increased in 34.7, 28.4 and 0.9 % with TP, EOP, and BP respectively. The efficiencies obtained for TP were 83.8 % for chemical oxygen demand reduction (COD), 79.3 % for volatile solids (VS) and a methane efficiency of 61.7 CH4/g VS. Likewise, the EOP pretreatment showed efficiencies of 65.1 % in COD, 59.8 % in VS and a value of 16.1 CH4/g VS; and in the pretreatment by bioaugmentation BP was obtained 59.6 % in removal of COD, 49.3 % for VS and an efficiency of 2.3 CH4/g VS.pt_BR
Idioma: dc.language.isoenpt_BR
Palavras-chave: dc.subjectanaerobic digestionpt_BR
Título: dc.titleSolubility, biodegradability, and methane production capacity of waste sludge pretreated by thermal prehydrolysis, electrooxidation and bioaugmentation (Atena Editora)pt_BR
Tipo de arquivo: dc.typelivro digitalpt_BR
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