SHORT-TERM EFFECTS OF TEMPERATURE CHANGES IN A PILOT PLANT FOR THE PRODUCTION OF BIOGAS FROM POULTRY LITTER

T Espinosa-Solares, M Domaschko, F Robles-Martínez, E Durán-Páramo, G Hernández-Eugenio, J Bombardiere

Abstract


The optimal temperature for anaerobic thermophilic digestion varies from 55 to 65 oC, and in com-mercial applications it ranges from 50 to 55 oC. The present study took place in a 40 m3 pilot plant, to determine the effect of temperature on methane production, using poultry litter as substrate. The chemical composition of the substrate, the effluent and the biogas were monitored throughout the experiments. The Arrhenius model indicates a strong correlation between the temperature and the specific methanogenic activity (SMA) in the range of 52.2 to 56.7 oC. The activation energy was 146.1 kJ mol-1. No significant differences were observed in the SMA when operationstook place in the range of 56.7 to 60 oC.

Keywords


Anaerobic digestion; Arrhenius model; specific methanogenic activity



DOI: http://dx.doi.org/10.19136/era.a26n3.151

ECOSISTEMAS Y RECURSOS AGROPECUARIOS(ECOSYSTEMS AND AGRICULTURAL RESOURCES), Year 6, Issue 16, January-April 2019, is a triannual journal edited, published and distributed by the Universidad Juárez Autónoma de Tabasco, Av. Universidad s/n, Zona de la Cultura, Col. Magisterial, Villahermosa, Centro, Tabasco, CP. 86040, Tel (993) 358 15 00, www.ujat.mx, era@ujat.mx., era@ujat.mx. Editor-in-chief: Efraín de la Cruz Lázaro. Copyright No. 04-2013-120514213600-203, ISSN: 2007-901X, both granted by the Instituto Nacional del Derecho de Autor (National Institute of Copyright), with certificate of title and content No. 16540 granted by the Secretaría de Gobernación(Ministry of the Interior). Individual responsible for the last update of this issue was journal Editorial Assistant Lic. Misael Hernández Martínez, Av. Universidad s/n, Zona de la Cultura, Col. Magisterial, Vhsa, Centro, Tabasco, Mex. C.P. 86040; date of last modification, December 31, 2018.

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