Diseño de un biodigestor para la generación de biogas y biol en la comunidad de Illagua del cantón Guaranda.

Abstract

The objective of this research was to design a biodigester for the generation of biogas and biol in the community of Illagua, Guaranda Canton. This study consisted in the quantification of porcine manure for 15 consecutive days, physicochemical characterization pre and post degradation and selection of the appropriate biodigester for the project. For this, a matrix of decision was elaborated and the tubular model was chosen as the most appropriate one. Subsequently, a prototype was developed to which gave a monitoring of temperature and pH. In addition, the calculations and design for the biodigester were carried out. Finally, it was made an analysis of the costs and benefits of the project and its feasibility. Among the outstanding results we have the presence of total coliforms in the manure which at the beginning of process was 1.10E+07, and at the end of the biodigestion process reached a value of <1, obtaining a removal of 99.99 %. In the same way as for phosphorus was obtained a decrease of 96.94 % that can be attributed to the assimilation of bacteria during their metabolic activity in the process. According to the results of the preliminary data such as availability of manure (18 kg), need for gas production (1 Tank), requirement of area (1.756 m2), labor, operation, maintenance and economic factor; The decision was taken in the design of the tubular biodigester systems of flexible structure of length 3.42 m; 4.41 m3 of total volume of the biodigester and with a diameter of 1.28 m. Once the titling project is concluded, it is suggested that it be implemented and followed up in order to contribute to the Community development and reduce pollution due to the waste generated by agricultural activities.