Viabilidad técnica y económica del aprovechamiento de aguas grises domésticas
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Ardila Galvis, Mónica
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Tipo de contenido
Trabajo de grado - Maestría
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EspañolFecha de publicación
2013
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Con el fin de evaluar la viabilidad técnica y económica del aprovechamiento de aguas grises domésticas en conjuntos residenciales, se realizó un estudio orientado a la selección de un sistema de tratamiento apropiado a las características de los vertimientos generados y a los usos potenciales establecidos. El sistema seleccionado incluye: tanque de almacenamiento, tamiz de finos, coagulación-floculación empleando Sulfato de Aluminio (177,56 mg/L, t = 16,37 min), tren de filtrado y tanque de almacenamiento de agua tratada para desinfección. Adicionalmente se define su viabilidad técnica para espacios disponibles en áreas comunes (25 m2 y 4 m de altura) con posibilidad de adecuación de tuberías hidráulicas y sanitarias para la separación de las aguas grises y negras, con retorno de las aguas tratadas para reutilización en usos que no requieren agua potable. Se encontró viable económicamente la implementación de este tipo de soluciones mediante la recuperación de la inversión requerida con un ahorro del 35% y 50% en los servicios de acueducto y alcantarillado, sin tener que incrementar la cuota de administración, reflejando un rendimiento del flujo del proyecto a 15 años de un 5,75% con un valor a favor anual de $21 millones a invertir en la mejora de la calidad de vida de los usuarios.
Abstract. In order to evaluate the technical and economic feasibility of the tap of domestic’s greywater in residential complexes; we conducted a study aimed at selecting a proper treatment system to the characteristics of the discharges generated and to the potential uses established. The selected system includes: storage tank, fine sieve, coagulation-flocculation using aluminum sulphate (177.56 mg / L, t = 16.37 min), filtering train and storage tank of treated water for disinfection. Additionally is defined its technical feasibility for available spaces in common areas (25 m2 and 4 m height) with possibility of adapting of plumbing pipes and drainage pipes for separation of greywater and blackwater, with return of treated waters for reuse in applications that do not require potable water. It was found economically feasible the implementation of such solutions through recovering the investment required with a saving of 35% and 50% of aqueduct and sewer services, without increasing the management fee, reflecting a yield of project flow to 15 years of 5,75% with an annual value for COP $21 million to invest in improving the quality of life of users.
Abstract. In order to evaluate the technical and economic feasibility of the tap of domestic’s greywater in residential complexes; we conducted a study aimed at selecting a proper treatment system to the characteristics of the discharges generated and to the potential uses established. The selected system includes: storage tank, fine sieve, coagulation-flocculation using aluminum sulphate (177.56 mg / L, t = 16.37 min), filtering train and storage tank of treated water for disinfection. Additionally is defined its technical feasibility for available spaces in common areas (25 m2 and 4 m height) with possibility of adapting of plumbing pipes and drainage pipes for separation of greywater and blackwater, with return of treated waters for reuse in applications that do not require potable water. It was found economically feasible the implementation of such solutions through recovering the investment required with a saving of 35% and 50% of aqueduct and sewer services, without increasing the management fee, reflecting a yield of project flow to 15 years of 5,75% with an annual value for COP $21 million to invest in improving the quality of life of users.