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Effect of fruits and vegetables in the anaerobic digestion of food waste from university restaurant.
de Amarante, Marina Campos Assumpção; Guerreiro, Pablo Eduardo Godinho; Radmann, Elisangela Martha; de Souza, Michele da Rosa Andrade Zimmermann.
Afiliação
  • de Amarante MCA; School of Chemistry and Food, Universidade Federal do Rio Grande (FURG), Campus Carreiros, Avenue Italia, km 08, Mail box 474, Rio Grande, RS, 96.203-900, Brazil. marinacaamarante@gmail.com.
  • Guerreiro PEG; School of Chemical Engineering, University of Birmingham, Edgbaston, Birmingham, B15 2TT, West Midlands, UK. marinacaamarante@gmail.com.
  • Radmann EM; School of Chemistry and Food, Universidade Federal do Rio Grande (FURG), Campus Carreiros, Avenue Italia, km 08, Mail box 474, Rio Grande, RS, 96.203-900, Brazil.
  • de Souza MDRAZ; School of Chemistry and Food, Universidade Federal do Rio Grande (FURG), Campus Carreiros, Avenue Italia, km 08, Mail box 474, Rio Grande, RS, 96.203-900, Brazil.
Appl Biochem Biotechnol ; 194(8): 3365-3383, 2022 Aug.
Article em En | MEDLINE | ID: mdl-35357662
The aim of this study was to evaluate the theoretical potential of methane production of the food waste generated by a university restaurant, as well as to verify the influence of the fruit and vegetable waste in the feeding composition of an anaerobic bioreactor treating this type of waste. Four feeding compositions combining three fractions of the food waste (fruit and vegetable fraction, soy protein and beans fraction, and rice fraction) at different concentrations were tested in anaerobic processes lasting 10 and 30 days. Additionally, a study of the theoretical potential of methane production from each fraction that composes the food waste was carried out, as well as the evaluation of the specific methanogenic activity of the anaerobic sludge. Despite its low theoretical potential of methane production (0.037 LCH4/g), the presence of the fruit and vegetable mixture in three of the feeding compositions led to greater organic matter degradation (above 69%) and CH4 yields (above 0.20 LCH4/gVS) in both periods tested, in comparison with the achieved by the feeding composition lacking this fraction. The results suggest that the presence of the fruit and vegetable mixture contributed with the supplementation of micro- and macroelements to the anaerobic sludge during the digestion of food waste.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Verduras / Eliminação de Resíduos Limite: Humans Idioma: En Revista: Appl Biochem Biotechnol Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Verduras / Eliminação de Resíduos Limite: Humans Idioma: En Revista: Appl Biochem Biotechnol Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos