Diseño de un sistema de tratamiento de aguas residuales para la parroquia Sibambe

Abstract

In the present investigation, a wastewater treatment system was designed for the Sibambe Parish of the Alausí Canton. Using the deductive method, the study began with the recognition of the place of collection and discharge of wastewater, then the effluent flow was determined by means of containers, thermometer and chronometer, where samples and data were taken, having a design flow of 13,168 L/s, essential data for the realization of the plant design. Subsequently, applying the experimental method, the results of the physical-chemical analysis of the residual effluent were obtained: 577.50 mg/L of Chemical Oxygen Demand, 372.7 mg/L of Biochemical Oxygen Demand, 20 ml/L Sediment Solids, 10 mg/L of Suspension Solids, 170 Nephelometric Turbidity Unit, 34.011x106 Colony Forming Units of Fecal Colifornmes, 4 mg/L Tensoactives. The aforementioned parameters are outside the permissible limits of the standards of the Unified Text of Environmental Legislation. It is concluded that the parameters analyzed allowed to determine the components of the treatment system, which will consist of: grids, primary circular settler, activated sludge tank, secondary circular decanter, and disinfection tank to have an effluent that meets the parameters according to the limits established by the standards of the Unified Text of Environmental Legislation. I recommend that the Sibambe Parish Council implement the treatment plant to manage and control the contamination of liquid effluents discharged into the Mallaguan River.