Evaluación de la planta de tratamiento de aguas residuales de la comunidad San Juan cantón Tisaleo provincia de Tungurahua

Abstract

The Wastewater Treatment Plant of the San Juan community was carried out because it presented different problems such as structural deterioration in the treatment train, deficiency in the wastewater purification processes and the presence of vegetation in all hydraulic units, this due to the lack of proper maintenance on the system. The evaluation began with the topographic survey and collection of information on the current state of the WWTP, then the measurement of flows in the influent and effluent was carried out to obtain the day of greatest demand that served to take composite samples that were sent to the laboratory. to analyze the most important parameters and compare them with the regulations, the same ones that demonstrated non-compliance with ammoniacal nitrogen and phosphate; A diagnosis of all the hydraulic structures was carried out, resulting in the septic tank and the drying bed meeting their objective, however there were problems with the distributor box and the trickling filter. For this reason, improvements were proposed such as the placement of a new screening grid that complies with the parameters established in CONAGUA, redesign of the sprinkling system in the biological filter to eliminate the non-contact area of the filter bed, uniformly distributing the effluent and the construction of a secondary decanter to recover the biomass generated from the biological filter; finally, an operation and maintenance manual for the plant's hydraulic units was created with their respective frequency and reference budget.