Optimización de la planta de tratamiento de aguas residuales de la central térmica la propicia de la provincia de Esmeraldas

Abstract

The residual water treatment plant of the Propicia Thermal Power Plant in the province of Esmeraldas was optimized to comply with the control parameters established in ministerial agreement No. 028 for the discharge of fresh water into the Teaone River. To meet this objective, a coagulation treatment of the residual water plant was evaluated for three types of effluents: cooling system purges and venting, boiler purges, and the main building, which make up the waste effluent of the Propicia Thermal Power Plant, through jar tests, taking as a reference the variables of temperature, pH, suspended solids, and conductivity, which are the main conditions that allow defining the quality of water prior to its discharge for power generation. According to the results obtained at the laboratory level, applying aluminum polychloride, comparative data are presented using the Generalized Linear Method, indicating results in which more than 90% of parameters such as suspended solids and color were removed, with aluminum polychloride being the most efficient. Finally, it is concluded that industrial residual water can be reused in processes such as garden irrigation at the plant, with prior treatment of coagulation, flocculation and sedimentation, but post-treatment with a biocide is necessary for feasible management and control of discharges to the river.