Estudio de factibilidad de lodo residual proveniente de la Ptar de la corporación favorita, para la producción de un fertilizante

Abstract

The project focused on the development of a proposal for the production of an organo-mineral fertilizer, from the sludge generated in a wastewater treatment plant of the Favorita Corporation; in order to take advantage of its potential in agronomic nutrients and mitigate greenhouse gas emissions caused by being disposed of in a sanitary landfill. It was carried out through an aerobic composting process and its subsequent combination with N-P-K type minerals. For the development of this project, a physicochemical characterization of the residual sludge was carried out. Once the results of the analyzes carried out in an external laboratory were obtained, newspaper and lawn pruning were established as support materials. The most influential alternatives and criteria in the process were determined by means of a PUGH selection matrix, where it was determined to use the composting system corresponding to the horizontal reactor with aeration and turning, in which two replications were made to estimate the representativeness of data. All three reactors were charged with the same mix of materials. With the start-up of the process, a follow-up of the variables was carried out for 55 days: temperature, pH, humidity and ashes. Once the process was finished, the mixture transformed into organic fertilizer was characterized.