Diseño de una planta de tratamiento de aguas residuales para la parroquia san Jacinto de Izamba del cantón Ambato.

Abstract

The objective was to design a wastewater treatment plant for the parish San Jacinto de Izamba in Ambato canton, which complies with all the technical specifications, and allows reducing the contaminants present in the water to ranges that are within the limits established by the Ministerial agreement 097 Reformatory of the TULSMA. To this end, the flow generated by the inhabitants of the parish was determined and at the same a sampling of the effluent was carried out, which allowed to know the parameters out of norm through an initial characterization, among them are: Color (784 Upt - CO), Oils and fats (165.67 mg/l), total nitrogen (42.5 mg/l), total phosphorus (14.3 mg/l), BOD5 (323 mg O2/l), COD (787.33), detergents (2.79) and fecal coliforms (42726 CFU/100 ml). Once this determination was carried out it could be know that due to the characteristics of the effluent, the treatment to be applied will be physical-chemical. For this purpose, pilot tests of treatability were carried out, such as: sample aeration, coagulation – flocculation, sedimentation, filtration and disinfection; Tests that helped to reduce the concentrations of contaminants up to value ranges within the environmental regulations, these procedures give a guideline to know the different stages that the residual water needed to recover its properties. After the experimentation stage, we proceeded to dimension the purification plant with each of its treatment units by means of engineering calculations, which corroborated that the implementation of this sanitation system is very useful in the conservation of the flora and fauna present in the parish, thus helping to dispel the environmental impacts that are generated day by day that flow into the Ambato River.