Diseño e implementación de un biodigestor para la producción de un bioabono a partir de estiércol de ganado vacuno en el Relleno Sanitario del GAD Municipal del cantón La Joya de los Sachas.

Abstract

A biodigester was implemented for the production of a biofertilizer from cattle manure in the municipal landfill of the Municipal GAD of La Joya de los Sachas, with livestock manure from the fairgrounds. The weekly production of manure was determined, collecting and weighing the accumulated amount on the days of fair in the enclosure, a physicochemical and bacteriological analysis was carried out to determine its quality, for the sizing of the biodigester the retention time was calculated, the amount of substrate to be used and the ratio C / N the biol obtained was characterized for its quality. It was determined that a weekly average of 150 kg of manure is produced, the laboratory analyzes indicated that the manure is apt for the process of biodigestion when obtaining a C/N ratio of 11.5, it was decided to build a biodigester of discontinuous type, the which is made up of a tank of 200 l. where a total of 180 kg of substrate was placed, of which 120 l correspond to water, 50 kg to the manure, 4 kg to wood ash, 2 l to molasses and 4 l to the milk serum, the final substrate registered a C/N ratio of 14 and the retention time was 42 days; In total, 3 biodigesters were implemented, from each of them 140 liters of biol was obtained, which presented a dark green coloration without the presence of solid and lumps of manure, with a smell of ferment and not putrefaction, the C/N ratio of the biol was 11.58, lower than the initial recorded by the substrate, indicative of a quality biol other the registered pH of 7.1 is within the optimum range of operation for this type of biodigesters, these characteristics make the biofertilizer suitable for being applied in agricultural crops, ornamental silvers among others.