Application of a Two-Stage Anaerobic System from Guava Processing Waste to Bioenergy

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dc.contributor.authorDe Carvalho, Romário P. [UNESP]
dc.contributor.authorMaintinguer, Sandra Imaculada [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversity of Araraquara
dc.date.accessioned2023-07-29T14:12:02Z
dc.date.available2023-07-29T14:12:02Z
dc.date.issued2022-08-01
dc.description.abstractThe application of maximum feedstock capacity through the treatment of organic wastes generated in the industrial chain is necessary for environmental preservation. Agro-industrial waste, such as from fruit processing, can be treated by anaerobic digestion with bioenergy generation. This study aimed to evaluate the consumption of guava processing waste on hydrogen (H2) and methane (CH4) production in a two-stage anaerobic system under four different conditions (substrate/inoculum ratios of 0.67, 1.0, 2.0, and 3.0 g COD g-1 VS). Bio-H2 (5.26-3.50 mL H2 g-1 VS) and bio-CH4 (266.27-104.67 mL CH4 g-1 VS) were produced, with consequent high efficiencies of organic matter (75-90% to total COD) and carbohydrates (98-99%) removals. Paraclostridium and Clostridium genera were used in ethanol, acetic, propionic, and butyric acids generation in the first stage, and these metabolites were consumed in the second stage. The estimated energy yields of the two-stage system were 1.1-2.7 kJ kg-1 residue. Guava residues can be recovered by application in anaerobic processes for the generation of biofuels and other added-value bioproducts.en
dc.description.affiliationInstitute of Chemistry-IQ Universidade Estadual Paulista
dc.description.affiliationBioenergy Department Bioenergy Research Institute - Central Laboratory (IPBEN) São Paulo State University
dc.description.affiliationUniversity of Araraquara
dc.description.affiliationUnespInstitute of Chemistry-IQ Universidade Estadual Paulista
dc.description.affiliationUnespBioenergy Department Bioenergy Research Institute - Central Laboratory (IPBEN) São Paulo State University
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 2017/16795-3
dc.description.sponsorshipIdFAPESP: 2017/22401-8
dc.format.extent240-247
dc.identifierhttp://dx.doi.org/10.1089/ind.2021.0033
dc.identifier.citationIndustrial Biotechnology, v. 18, n. 4, p. 240-247, 2022.
dc.identifier.doi10.1089/ind.2021.0033
dc.identifier.issn1550-9087
dc.identifier.scopus2-s2.0-85138451535
dc.identifier.urihttp://hdl.handle.net/11449/249166
dc.language.isoeng
dc.relation.ispartofIndustrial Biotechnology
dc.sourceScopus
dc.subjectanaerobic digestion
dc.subjectFruit processing waste
dc.subjecthydrogen
dc.subjectmethane
dc.subjectParaclostridium
dc.titleApplication of a Two-Stage Anaerobic System from Guava Processing Waste to Bioenergyen
dc.typeArtigo

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Artigos - Química Orgânica - IQ