Producción de biogás mediante biodigestor a escala piloto con residuos semi-sólidos (excretas y rumen) del camal de Calceta, Bolívar

The objective of the present investigation was to take advantage of semi-solid residues (excreta and rumen) by biodigestor at a pilot scale for the production of biogas in the municipal outlet of Calceta. Three treatments were performed with three repetitions resulting in a total equivalent to nine experimental units. The first phase of the study included a diagnosis of the amount of semi-solid waste from the Calceta municipal camal; which included technical visits, quantification of semi-solid waste. In phase two, the efficiency of biogas production was determined; for this, the mixture of semisolid wastes in different proportions was made (20, 30 and 40% of rumen and bovine and porcine manure). Finally, the cost of the alternative was estimated through the best treatment. The result was a production of bovine manure of 540 kg / wk and swine manure of 206 kg / wk. The amount of rumen generated in a week is 720 kg / week. The initial pH showed an acidic tendency (5.36-6.68) and at 30 days it reached optimal ranges (6.6-7.9). The SVs achieved a removal efficiency of 39.95% (20% rumen), 67.57% (30% rumen) and 77.80% (40% rumen). Concentrations at 30 and 40% experienced a removal of 29.66% and 25.91%, respectively, for COD. A significant difference (p <0.05) was found between the levels of biogas production, methane concentration, COD, and SV for the three treatments (20, 30 and 40% rumen). The biodigester at 40% of rumen presents a higher efficiency; that allows to verify the hypothesis raised.

• Main Author: Mejía Rosado, Gema Carolina (author)
• Other Authors: Peralta Zambrano, José Rafael (author)
• Format: bachelorThesis
• Language: spa
• Published: 2019
• Subjects: Rumen; Estiércol Bovino; Estiércol Porcino; Biogás
• Online Access: http://repositorio.espam.edu.ec/handle/42000/1000