Diseño de un sistema de tratamiento de aguas residuales para la empresa de lácteos San Salvador.

Abstract

The objective was to design a treatment system for wastewater in the Dairy Company San Salvador situated in the Veloz parish of the Riobamba city for compliance with the existing norms. The place of the discharge of residual water was examined to proceed to the flow measurement twice a week because in these two days the production is abundant, from 09h00 am to 17h00 pm on Fridays and from 10h00 am until 18h00 pm on Saturdays, obtaining a maximum flow rate of 0.96 L / s. Subsequently, a composite sample was applied, obtaining a representative sample that was taken to a laboratory for its physical and chemical characterization. It was considered the normative of permissible limits of environmental quality Water Resource of the ministerial agreement 061 TULSMA reform of book VI Annex I. Table 8. To later propose an effective Water Treatment System, which constitutes the following components: reception channel, gratings, degreaser, mixer-settler and finally filtration with a fall system for the oxygenation of the water in each component of the system. With this design it was obtained a removal: DQO 87.86%, DBO5 92.8%, Oils and Greases 85.68%, Total Nitrogen 98.9%, Sulphates 60%, Total Solid 94%, Suspended Solids 98.9% , turbidity 99.87%, in order to avoid problems of public and environmental health, because it did not have a treatment for wastewater of its installations prior to the discharge to the sewer thus complying with the environmental quality standard Water Resource of the ministerial agreement 061 TULSMA reform of book VI Annex I. Table 8; and evidencing in this way that the treatment is suitable.