Evaluación del sistema operativo de la planta de tratamiento de aguas residuales no domesticas en la central de abastos de Villavicencio

Abstract

This project was carried out in the non-domestic wastewater treatment plant (WWTP-ND) of the CAV, whose effluent is discharged into the Caño de Aguas Claras. The main objective is to "Evaluate the performance Operating system of the CAV Wastewater Treatment Plant of the. Information was collected to understand the operation and specifications of each of the structures of the plant without having plans or calculation memories or technical specifications. This information was obtained through technical visits to the plant, conducting surveys to the personnel in charge at the company, as well as a survey of the representative of one of the neighboring communities. Subsequently information was collected on the characteristics of each one structures of the plant, so the removal efficiency of the system was determined and analyzed taking into account the parameters established for the treatment and discharge of wastewater according to resolution 0631 of 2015 for compliance with the new parameters and maximum permissible values established. To analyze the operation, a sampling was carried out from April 10, 2018 to August 24, 2018, in 6 key points of the treatment plant, the following In Situ variables were determined: pH, temperature, conductivity and Ex Situ: BOD, COD, Fats and Oils and Total Suspended Solids. From the analyzed parameters it was possible to determine that 100% of the Total Suspended Solids, Fats and Oils values do not comply with the maximum permissible limit values for the BOD and COD, only 30% and 40% the results comply with the parameters established in the standard. The removal percentages were calculated for each of the units, with the percolating filter being the most critical, where 50% of the total data obtained have low removal percentages due to the design characteristics they present.