Evaluación de la planta de tratamiento de aguas residuales de la comunidad Santa Lucía La Libertad perteneciente al Cantón Tisaleo, provincia deTungurahua

Abstract

The evaluation of the Wastewater Treatment Plant (WWTP) was carried out due to the need to update the existing implementation plans, as well as the lack of maintenance that is evident in the terrain and in the units that make up the WWTP, producing bad odors and contamination that represent a danger to the residents near the area. The methodology used for the present experimental work was carried out in 5 stages: the first was the collection of primary information from the WWTP; then a field investigation was carried out, obtaining current dimensions of the treatment train units and measuring inlet and outlet flow rates; in stage 3 a laboratory analysis was carried out with samples of the influent and effluent, while in stage 4 a technical diagnosis of the operation of each component was made to detect problems resolved in the final stage with a proposal for improvement of the WWTP. Due to the presence of 62.94 percent manganese in the effluent, an inlet velocity of 0.62 m/sec at the screen, which is higher than that stipulated in the regulations, and the deterioration of some units, the following was proposed: a final filter composed of limestone in its filtering bed, lechuguines plants and a conduit to discharge the effluent into the Palagua River; replacement of the screening screen along with broken pipes of the treatment train and finally an operation and maintenance plan for the WWTP units with their respective reference budgets.