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Two phase anaerobic digestion system of municipal solid waste by utilizing microaeration and granular activated carbon
FERNANDO CANUL BACAB
Elda Isaura España Gamboa
JUAN ENRIQUE RUIZ ESPINOZA
ROSA MARIA LEAL BAUTISTA
RAUL TAPIA TUSSELL
Jorge Arturo Domínguez Maldonado
Blondy Beatriz Canto Canché
Liliana María Alzate Gaviria
Acceso Abierto
Atribución-NoComercial-SinDerivadas
doi:10.3390/en13040933
ORGANIC FRACTION OF MUNICIPAL SOLID WASTE
ANAEROBIC DIGESTION
MICRO-AERATION
GRANULAR ACTIVATED CARBON
COUPLED REACTORS
In an anaerobic digestion (AD) process, the hydrolysis phase is often limited when substrates with high concentrations of solids are used. We hypothesized that applying micro-aeration in the hydrolysis phase and the application of granular activated carbon (GAC) in the methanogenesis phase could make the AD process more efficient. A packed bed reactor (PBR) coupled with an up-flow anaerobic sludge blanket (UASB) was conducted, and its effects on methane generation were evaluated. The micro-aeration rate applied in PBR was 254 L-air/kg-Total solids (TS)-d was compared with a control reactor. Micro-aeration showed that it reduced the hydrolysis time and increased the organic matter solubilization as chemical oxygen demand (COD) increasing 200%, with a volatile fatty acids (VFAs) increment higher than 300%, compared to the control reactor (without aeration). Our findings revealed that the implementations of microaeration and GAC in the two-phase AD system could enhance methane production by reducing hydrolysis time, increasing solid waste solubilization.
2020
Artículo
Energies 2020, 13, 933. https://doi.org/10.3390/en13040933
Inglés
Canul Bacab, F.; España Gamboa, E.; Ruiz Espinoza, J.E.; Leal-Bautista, R.M; Tapia Tussell, R.; Domínguez Maldonado, J.; Canto Canché, B.; Alzate-Gaviria, L. Two phase anaerobic digestion system of municipal solid waste by utilizing microaeration and granular activated carbon. Energies 2020, 13, 933. https://doi.org/10.3390/en13040933
ENERGÍA
Versión publicada
publishedVersion - Versión publicada
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