RT info:eu-repo/semantics/article
T1 Microbial analysis of anaerobic digester reveals prevalence of manure microbiota
A1 García Álvaro, Alfonso
A1 Ruiz Palomar, César
A1 Valenzuela, Edgardo I.
A1 Hermosilla Redondo, María Daphne
A1 Muñoz Torre, Raúl
A1 Godos Crespo, Ignacio de
K1 Anaerobic digestion
K1 Inhibition
K1 Microbial community
K1 Swine manure
K1 Waste to energy
AB Anaerobic digestion of swine manure reduces farm greenhouse gases emissions and provides a renewable gas in the agricultural sector. The particular composition of manure, with high concentrations of ammoniacal nitrogen and volatile fatty acids, often threatens the stability of the process through inhibition of methanogens. In this work, continuous production of biogas was tested under relative short hydraulic retention time (15 days). Although a strong inhibition period was detected, adaptation of the microbiota and displacement of bacteria and archaea present in the inoculum by microorganisms present in the animal manure resulted in biogas production close to the values found in standardized batch tests in absence of inhibitions. These findings suggest that in anaerobic digestion of manure, it is not necessary to inoculate, as manure itself contains a large number of active fermentative microorganisms that can even resist long-term digestion inhibition.
PB Elsevier
SN 2214-7144
YR 2024
FD 2024
LK https://uvadoc.uva.es/handle/10324/72943
UL https://uvadoc.uva.es/handle/10324/72943
LA eng
NO Journal of Water Process Engineering, 2024, vol. 60, 105162
NO Producción Científica
DS UVaDOC
RD 23-dic-2024