Diseño de la planta de tratamiento de agua residual mediante lodos activados para la Comunidad de Pesillo, parroquia Olmedo

Abstract

The purpose of this research work is to propose a wastewater treatment system effluent of the Pesillo community, Olmedo parish, this in order to solve the current problem pollution of the water resource because it is a collective problem due to the fact that other communities downstream use the same stream of water for irrigation activities, watering holes, etc. In order to know whether the proposed treatment would be appropriate for the type of wastewater of Pesillo, the biodegradability index was first determined, of which an average rate of 0.41 was obtained by concisely establishing that biological treatment by activated sludge proposed in this research is in line with the type of wastewater to be treated. Being a domestic wastewater to be treated, a composite sampling was applied for a week getting to know the real characteristics of wastewater, with the analyses obtained, the PTAR was sized generating the design of the units according to their type of wastewater, future population and flow. As well as part of the research, laboratory-scale treatability testing was performed with sludge activated to know sludge rates, to do this, it was aerated for 24 hours to ensure that the system remains aerobic during the test. Thus, the COD parameter will drop from 1101 mg/L to 117 mg/L. The dimensions of the treatment units were used to design the general schema of the PTAR for the Pesillo community, the planes display the ingress channel, screen, grease trap, primary and secondary sedimentator, aerator tank, chlorination tank and the drying bed.