Evaluación de la planta de tratamiento de aguas residuales de la parroquia rural Once de Noviembre, cantón Latacunga, provincia de Cotopaxi

Abstract

In order to mitigate the problems of water contamination from a conventional sewage system and that it is returned to the environment with its zero harmful load of contaminants, with the purpose of determining if the treated water that is returned to a source of fresh water complies with the provisions of the TULSMA 2015. Information was collected from the sector where the WWTP is located; Using the volumetric method, we proceeded to collect data on the flows of the tributary and effluent; Taking the NTE INEN 2 176:1998 and NTE INEN 2 169:1998 standards as a reference, residual water sampling was carried out at the entrance and exit of the WWTP, to analyze its physical-chemical characteristics in the laboratory; then the comparison was made with the discharge parameters established by the TULSMA 2015, where it was verified that the total phosphorus, ammoniacal nitrogen, COD and BOD, do not comply with the provisions of the current standard, for which we proceeded to search a proposal to improve the aforementioned parameters. Finally, a new treatment train was proposed, incorporating a Screening, Sand Trap, Septic Tank, FAFA and dried sludge bed, so that the residual water treated in the WWTP could theoretically remove 90 percent of the contaminants efficiently; In addition, an operation and maintenance plan for the WWTP was proposed to guarantee its useful life.