Análisis técnico y económico de alternativas para abastecimiento de agua potable en Villucura, Santa Bárbara.
Loading...
Date
2025
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Universidad de Concepción
Abstract
La localidad de Villucura en Santa Bárbara tiene un sistema de agua potable mejorado y ampliado en 2004 con una cobertura actual de 57% y que ha cumplido su vida útil por lo que corresponde el estudio y mejoramiento de este. Se estudiaron tres fuentes de agua superficial cercanas a la zona a abastecer, estero Angelito, río Dimilhue y río Arilahuén, de las cuales se requiere extraer 4.7 l/s mediante equipos de bombeo funcionando 12 horas diarias para satisfacer la demanda proyectada de 840 habitantes al último año de previsión.
Los diseños realizados a nivel de anteproyecto incluyen una captación lateral mediante un vertedero frontal, un sistema de tratamiento, dos ubicaciones de estanques de regulación y una red de distribución. El sistema de tratamiento consta de un desarenador, un filtro abatidor de hierro y manganeso y un filtro floculador. Con estas partidas se determinó que la mejor alternativa desde el punto de vista económico es la que extrae agua desde el río Arilahuén y utiliza un estanque metálico elevado de 15 m y volumen 100 m3, por ser la opción con el menor valor actual de costos. Lo que se explica por una inversión inicial, operación y reposición de equipos más económicos. Además, es la que ofrece una tarifa al consumidor más baja, $1172/m3.
The town of Villucura in Santa Bárbara has a drinking water system improved and expanded in 2004 with a current coverage of 57% and that has reached its life expectancy, so it is necessary to study and improve it. Three water sources close to the area to be supplied were studied, Angelito creek, Dimilhue river and Arilahuén river, which requires to extract 4.7 l/s through a pumping system working 12 hours per day to satisfy the projected demand of 840 population in the final year of forecast. The designs carried out at the preliminary project level included a lateral intake through a front spillway, treatment system, regulation tanks and distribution network. The treatment system consists of a sand trap, an iron and manganese abatement filter, and a flocculation filter. With these items, it was determined that the best alternative from the economic point of view is the one that extracts water from the Arilahuén river and uses an elevated metal tank of 15 m and volume of 100 m3, as it is the option with the lowest current cost value. This is explained by a lower initial investment, operation and replacement of equipment. In addition, it is the one that offers the lowest consumer tariff, $1172/m3.
The town of Villucura in Santa Bárbara has a drinking water system improved and expanded in 2004 with a current coverage of 57% and that has reached its life expectancy, so it is necessary to study and improve it. Three water sources close to the area to be supplied were studied, Angelito creek, Dimilhue river and Arilahuén river, which requires to extract 4.7 l/s through a pumping system working 12 hours per day to satisfy the projected demand of 840 population in the final year of forecast. The designs carried out at the preliminary project level included a lateral intake through a front spillway, treatment system, regulation tanks and distribution network. The treatment system consists of a sand trap, an iron and manganese abatement filter, and a flocculation filter. With these items, it was determined that the best alternative from the economic point of view is the one that extracts water from the Arilahuén river and uses an elevated metal tank of 15 m and volume of 100 m3, as it is the option with the lowest current cost value. This is explained by a lower initial investment, operation and replacement of equipment. In addition, it is the one that offers the lowest consumer tariff, $1172/m3.
Description
Tesis presentada para optar al título de Ingeniero/a Civil.
Keywords
Abastecimiento de agua, Agua potable, Maquinaria de bombeo