Análisis de la huella de carbono del Hospital General Mariana de Jesús de la ciudad de Riobamba

Abstract

The objective of this project was to obtain biol from the anaerobic digestion of a mixture of plant and animal waste, for which a commercial 600L capacity bioreactor was used. It began with the collection and characterization of the raw material to determine the formulation of the product based on its nutrient content and the C / N ratio. Then, the mixture was prepared with guinea pig manure, rat manure, chicken manure, water, mountain microorganisms, brown sugar, raw milk, ash and eggshells. The container was hermetically sealed, subjecting the mixture to anaerobic decomposition for 120 days. Throughout the process, the parameters were evaluated: temperature, electrical conductivity (EC), pH, BOD5 and COD, in addition to three organoleptic properties: color, odor and appearance. To analyze the biol, samples were taken from three sections of the biodigester (upper, middle and bottom), which were subjected to physical, chemical and microbiological analyzes with five replications each. The biol obtained contains a good amount of nitrogen (4.11%), phosphorus (1.22%) and potassium (8.50%), certain percentage of fecal and total coliforms, around 8.8x10e04 CFU / ml, moderately acid character due to its pH of 6.64 and high concentration of soluble salts defined by the EC equal to 25.11 dS / m. Finally, it was determined that the production cost of one liter of this biol was 0.27ctvs. In conclusion, the biol obtained with a yield of 77.67% based on the proposed formulation, presented excellent nutritional properties to be used as foliar fertilizer, since it meets the quality standards for organic fertilizers according to Agrocalidad-Ecuador; however, it has a certain pathogenic load that must be controlled. It is recommended to implement a temperature regulation system to maintain the fermentation in the mesophilic zone, which optimizes the biol production.