Rediseño del sistema de alcantarillado combinado para la zona urbana del GAD parroquial de Nono, provincia Pichincha

Abstract

The objective of this degree project is to evaluate the current state of the combined sewer system operating in the urban area of the parish of Nono, canton of Quito, province of Pichincha, which extends from the head well located on the Nono–Quito road to the point of restitution to the treatment plant located on the San Martín road. To carry out the study, a detailed cadastral survey of the existing collectors and wells was conducted, as well as a topographic analysis of the sector and a population analysis. Finally, a computer model of the sewerage system was created using specialized software for sewerage networks, which was used to evaluate the hydraulic behavior of the existing network and identify the main deficiencies in its flow capacity due to storm water runoff. The evaluation showed that 3.84 km of pipe carries up to 12.60 L/s of sanitary flow and 2713.799 L/s of storm water flow in its final sections, with pipe diameters ranging from 200 mm to 500 mm, most of which are made of concrete. The comparative analysis of alternatives determined that the most efficient solution is the implementation of a separate sewer system, with updated designs for the stormwater and sanitary networks in accordance with the parameters set forth in current regulations.