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The implementation of new processes for the use of residual biomass is one of the intrinsic goals in the goals established within the objectives of sustainable development to contribute to environmental energy security. This article deals with the production of biogas by co-digestion of bovine waste and bovine manure in two UASB reactors with the same dimensions, with thermal isolation system and without external heating and an average temperature of 16°C, differentiated only because one of them incorporated a manual agitation system. The mixture of pruning residue and cow manure was made with a 1: 2 ratios, a pH of 6.24 and 7.3 (respectively) and a humidity greater than 60%. During the process, it was possible to observe the acidification of the reactor without agitation, which inhibited the production of biogas, while in the system with agitation until day 90, produced 11 L of biogas with a methane composition of 21.11%, which showed the favorable effect of agitation on the anaerobic digestion process.

Codigestión de estiércol de bovino y residuo de poda para la producción de biogás mediante digestión anaerobia con agitación a escala laboratorio