Diseño de un sistema de tratamiento de aguas residuales para la planta procesadora de productos lácteos de la asociación de mujeres “Yurak Sisa”

Abstract

This technical project consisted of designing a wastewater treatment system for the dairy products processing plant of the Yurak Sisa Association, since these effluents are discharged directly into a freshwater body. For the development of this study, we proceeded with the collection of 3 composite samples for physicochemical and microbiological characterization, in which we identified parameters such as: Oils and fats, COD, BOD, suspended solids, total solids, total nitrogen and fecal coliforms that are not within the stablished Environmental Quality Standard, therefore, a treatment system was proposed based on the biodegradability index which is 0.72, opting for a physicochemical treatment, for which aeration was performed for 4 hours, coagulation with PAC at 150 ppm and anionic flocculant at 6 ppm and sedimentation for 1 hour. Once the design variables were identified, it was determined that the sizing of the system according to the treatments carried out would consist of the following processes: a manual grid system, a grease trap, an aeration tank, a coagulator- flocculator, a settling tank followed by a disinfection tank. This proposed design was validated through the final characterization of the treated water based on the Environmental Quality Standard and Effluent Discharge to Water Resources. In this study, it is recommended to implement the proposed treatment system for the Plant in order to minimize the environmental impact of the community's water resources.