Diseño de una planta de tratamiento de aguas residuales para la parroquia Guanujo, cantón Guaranda, provincia Bolivar.

Abstract

A wastewater treatment plant was designed for the cheese industry El Sinche ", Guanujo parish, Guaranda town, by characterizing the residual water, the parameters outside the standard where identified. Table N ° 9: Limits of Discharge to a Body of Fresh Water, from Annex 1 of Book VI of TULSMA (Official Register No.387, November 4, 2015) to carry out water Treatability test were performed and according to their characteristics sedimentation, aeration, jar test and finally the sand filter gravel activated carbon were used.. The results of these processes were determined by characterization tests where it was observed how the contamination decreased as the treatment progressed. In the sedimentation stage a reduction of the Chemical Demand of Oxygen (COD) from 19800 mg / L to 10080 mg / L was obtained, then with the 48 h of aeration this was reduced to 3280 mg / L and with the aid of the jar test Using the 5% FeCl3 in the optimum dose of 6mL and a 7 second shaking followed by sedimentation gave a COD = 430mg/ L. Finally, the sand filter eliminated contaminants that were not limited in previous processes with a final COD of 10 mg / L. According to the final characterization it was determined that the parameters are in Norma complying with the requirements of the Ministry of the Environment. It is concluded that the design was successfully validated bequeath to the limits of the standard and that the sizing of the equipment is the appropriate chord. The volume to be treated and recommended periodic characterization analyzes to verify that the process is in optimal conditions.