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Title: Use of anaerobic co-digestion as an alternative to add value to sugarcane biorefinery wastes.
Authors: Herrera Adarme, Oscar Fernando
Baeta, Bruno Eduardo Lobo
Gabriel Filho, José Balena
Gurgel, Leandro Vinícius Alves
Aquino, Sergio Francisco de
Keywords: Vinasse
Sugarcane bagasse fly ash
Sustainable biorefinery
Hemicelluloses hydrolysate
Issue Date: 2019
Citation: HERRERA ADARME, O. F. et al. Use of anaerobic co-digestion as an alternative to add value to sugarcane biorefinery wastes. Bioresource Technology, v. 287, n. 121443, set. 2019. Disponível em: <>. Acesso em: 10 fev. 2020.
Abstract: In this study the anaerobic co-digestion (AcD) of sugarcane biorefinery by-products, i.e. hemicelluloses hydrolysate (HH) (obtained by hydrothermal pretreatment of sugarcane bagasse), vinasse, yeast extract (YE) and sugarcane bagasse fly ashes (SBFA), was optimized by means of biochemical methane potential experiments. The best experimental conditions of AcD (25–75% HH-to-vinasse mixture ratio; 1.0 g L−1 YE; 15 g L−1 SBFA and 100–0% HH-to-Vinasse; 1.5 g L−1 YE; 45 g L−1 SBFA) led to the production of 0.279 and 0.267 Nm3 of CH4 per kg of chemical oxygen demand (COD) with an energy surplus of 0.43 and 0.34 MJ kg SB−1, respectively. Adsorption experiments using SBFA were carried out and showed this residue could adsorb up to 61.71 and 17.32 mg g−1 of 5-hydroxymethyl-2-furfuraldehyde and 2-furfuraldehyde, thereby reducing toxicity and improving biogas production.
ISSN: 0960-8524
Appears in Collections:DEQUI - Artigos publicados em periódicos

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