Diseño del Sistema de Tratamiento de Aguas Residuales para Juive Chico - La Pampa (Baños - Tungurahua)

Abstract

A wastewater treatment plant was designed in Juive Chico - La Pampa, Baños canton, Tungurahua province, to mitigate the environmental impact produced by its discharge into the Pastaza River. Wastewater samples were taken for analysis. Total coliforms, fecal coliforms, total solids, suspended solids, sediment solids, BOD, COD, and nitrites exceed the limits allowed by the Unified Text of Secondary Environmental Legislation (TULAS). This plant will contain: screens to retain solids of larger volume; a sedimentation tank with dimensions: A= 5.02 m square; W= 2m<, Lg= 6m; h= 1.5 m, in which smaller solids will be precipitated; a secondary tank with dimensions: A= 9.035 square m, Lg= 9.5m, h=1 m, where the biological material Consume Pow is added in quantities equivalent to the flow to be treated, which has the property of degrading organic matter decreasing the BOD from 1493.2 mg/L, to 81.08 mg/L, achieving that the water is decontaminated and is in conditions to be discharged into the Pastaza River. If this plant were implemented, it would be able to maintain low contamination limits and would use a biological decontamination method (Consume Pow); its useful life is 30 years considering that the population has an annual growth rate of 0.004, which would guarantee its usefulness. It is recommended that the Municipality of Baños implement this plant to improve the quality of the water discharged into the Pastaza River.