Innovative system to maximize methane production from fruit and vegetable waste.

Autor: de Menezes CA; Embrapa Tropical Agroindustry, Dra. Sara Mesquita 2270, Fortaleza, CE, 60511-075, Brazil., Dos Santos DR; Department of Hydraulic and Environmental Engineering, Federal University of Ceará, Campus do Pici, Bl 710, Fortaleza, CE, 60440-900, Brazil., Cavalcante WA; Federal Institute of Education, Science, and Technology of Ceará, Av. Treze de Maio 2081, Fortaleza, CE, 60040-531, Brazil., Almeida PS; Embrapa Tropical Agroindustry, Dra. Sara Mesquita 2270, Fortaleza, CE, 60511-075, Brazil., Silva TP; Department of Hydraulic and Environmental Engineering, Federal University of Ceará, Campus do Pici, Bl 710, Fortaleza, CE, 60440-900, Brazil., da Silva Júnior FDCG; São Carlos School of Engineering, University of São Paulo, Rua João Dagnone 1100, São Carlos, SP, 13563-120, Brazil., Gehring TA; Institute of Urban Water Management and Environmental Engineering, Department of Civil and Environmental Engineering, Ruhr-Universität Bochum, Universitätsstr.150, 44801, Bochum, Germany., Zaiat M; São Carlos School of Engineering, University of São Paulo, Rua João Dagnone 1100, São Carlos, SP, 13563-120, Brazil., Dos Santos AB; Department of Hydraulic and Environmental Engineering, Federal University of Ceará, Campus do Pici, Bl 710, Fortaleza, CE, 60440-900, Brazil., Leitão RC; Embrapa Tropical Agroindustry, Dra. Sara Mesquita 2270, Fortaleza, CE, 60511-075, Brazil. renato.leitao@embrapa.br.
Jazyk: angličtina
Zdroj: Environmental science and pollution research international [Environ Sci Pollut Res Int] 2024 Oct 26. Date of Electronic Publication: 2024 Oct 26.
DOI: 10.1007/s11356-024-35328-w
Abstrakt: Anaerobic digestion of fruit and vegetable waste (FVW) offers an environmentally friendly alternative for waste disposal, converting it into methane for energy recovery. Typically, FVW digestion is conducted in a continuously stirred tank reactor (CSTR) due to its ease of use and stability with solid concentrations between 5 and 10%. However, CSTRs are limited to organic loading rates (OLRs) of about 3 kg COD/m 3 .day, resulting in large reactor volumes, low methane productivity, and costly wet digestate handling. This work introduces a novel method for methane production from FVW using a high-rate reactor system. The proposed approach involves grinding, centrifuging, and/or pressing the FVW to separate it into liquid and solid phases. The liquid phase is then digested in an up-flow anaerobic sludge blanket (UASB) reactor, while the solid phase undergoes digestion in a dry methanization reactor. A model incorporating all biological reactors was implemented in the Anaerobic Digestion Model 1 (ADM1) to provide a theoretical basis for the experimental development of this system. The current simulation scenarios offer initial references for operating the experimental system, which will, in turn, generate data for further model refinement. For instance, constrained liquid-gas mass transfer was considered for dry fermentation, with additional potential biochemical kinetic limitations to be incorporated following on experimental evidence. The success of this system could enable energy recovery in 72 Central Wholesale Markets across Brazil, offering a critical tool for planning, operating, and optimizing such systems.
(© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
Databáze: MEDLINE
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