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DatoValore
TitleKitchen waste valorization through a mildtemperature pretreatment to enhance biogas production and fermentability: Kinetics study in mesophilic and thermophilic regimen
AbstractBiowaste valorization through anaerobic digestion is an attractive option to achieve both climate protection goals and renewable energy production. In this paper, a complete set of batch trials was carried out on kitchen waste to investigate the effects of mild thermal pretreatment, temperature regimen and substrate/inoculum ratio. Thermal pretreatment was effective in the solubilisation of macromolecular fractions, particularly carbohydrates. The ability of the theoretical methodologies in estimating hydrogen and methane yields of complex substrates was evaluated by comparing the experimental results with the theoretical values. Despite the single batch configuration, a significant initial hydrogen production was observed, prior to methane yield. Main pretreatment effect was the gain in hydrogen production; the extent was highly variable according to the other parameters values. High hydrogen yields, up to 113 mL H2/g VSfed, were related to the prompt transformation of soluble sugars. Thermophilic regimen resulted, as expected, in faster digestions (up to 78 mL CH4/gVS/day) and sorted out pH inhibition. The relatively low methane yields (342-398 mL CH4/g VSfed) were the result of the consistent lignocellulosic content and low lipid content. Thermal pretreatment proved to be a promising option for the enhancement of hydrogen production in food waste dark fermentation. (c) 2019 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
SourceJournal of Environmental Sciences 2010, 22(9) 1357-1363 89, pp. 167–179
KeywordsKitchen wasteHydrogenMethaneThermal pretreatmentKineticsThermophilic regimen
JournalJournal of Environmental Sciences 2010, 22(9) 1357-1363
Editorelsevier, cina, Cina
Year2020
TypeArticolo in rivista
DOI10.1016/j.jes.2019.10.016
AuthorsGallipoli, Agata; Braguglia, Camilla M.; Gianico, Andrea; Montecchio, Daniele; Pagliaccia, Pamela
Text420312 2020 10.1016/j.jes.2019.10.016 ISI Web of Science WOS 000504755800015 Scopus 2 s2.0 85075654226 Kitchen waste Hydrogen Methane Thermal pretreatment Kinetics Thermophilic regimen Kitchen waste valorization through a mildtemperature pretreatment to enhance biogas production and fermentability Kinetics study in mesophilic and thermophilic regimen Gallipoli, Agata; Braguglia, Camilla M.; Gianico, Andrea; Montecchio, Daniele; Pagliaccia, Pamela Water Res Inst IRSA CNR Biowaste valorization through anaerobic digestion is an attractive option to achieve both climate protection goals and renewable energy production. In this paper, a complete set of batch trials was carried out on kitchen waste to investigate the effects of mild thermal pretreatment, temperature regimen and substrate/inoculum ratio. Thermal pretreatment was effective in the solubilisation of macromolecular fractions, particularly carbohydrates. The ability of the theoretical methodologies in estimating hydrogen and methane yields of complex substrates was evaluated by comparing the experimental results with the theoretical values. Despite the single batch configuration, a significant initial hydrogen production was observed, prior to methane yield. Main pretreatment effect was the gain in hydrogen production; the extent was highly variable according to the other parameters values. High hydrogen yields, up to 113 mL H2/g VSfed, were related to the prompt transformation of soluble sugars. Thermophilic regimen resulted, as expected, in faster digestions up to 78 mL CH4/gVS/day and sorted out pH inhibition. The relatively low methane yields 342 398 mL CH4/g VSfed were the result of the consistent lignocellulosic content and low lipid content. Thermal pretreatment proved to be a promising option for the enhancement of hydrogen production in food waste dark fermentation. c 2019 The Research Center for Eco Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V. 89 Published version https //www.scopus.com/record/display.uri eid=2 s2.0 85075654226 origin=resultslist 25/10/2019 Pubblicato on line il 09/11/2019 Kitchen waste valorization through a mildtemperature pretreatment to enhance biogas production and fermentability Manuscript 2020 Gallipoli et al., Kitchen Waste valorization Journ Env. Science.pdf Articolo in rivista elsevier 1001 0742 Journal of Environmental Sciences 2010, 22 9 1357 1363 Journal of Environmental Sciences 2010, 22 9 1357 1363 PAGLIACCIA PAMELA camillamaria.braguglia BRAGUGLIA CAMILLA MARIA andrea.gianico GIANICO ANDREA daniele.montecchio MONTECCHIO DANIELE agata.gallipoli GALLIPOLI AGATA