Diseño de un sistema de tratamiento de aguas residuales para la empresa PROALIM.

Abstract

A sewage water treatment System was designed for PROALIM Company located at the Industrial Park of Riobamba, since the sewage generated is discharged into the public sewage system without any type of treatment, this violates the environmental regulations. The flow measurement was carried out with the use of the volumetric method for 7 days a week with a 10 minute interval for each sampling during 9 working hours; the average flow generated by the company is 0,18 l/s resulting in a volume of 5832 liters of sewage per day. A compound sewage sampling was carried out in order to determine the physical, chemical, and microbiological characterization at the Science Faculty Technical Analysis Laboratory in order to know the parameters which are out of the norm. The results reflected that water has high values regarding to turbidity, Chemical Oxygen Demand (COD), Biochemical Oxygen Demand (BOD5 ), fats, oils, fecal coliforms with values of 3248 NTU, 11310 mg/l, 100 mg/l, 30000 UFC respectively. Based on the results obtained in the characterization the most appropriate treatment system was chosen, this will allow reducing water pollution, this is a biological ventilation system which eliminated odor, turbidity, and organic matter; this was reflected in the reduction of parameters such as: COD, BOD5 , fats, oils, and fecal coliforms in order to set them under the values established by the TULSMA norms, book IV, annex I, TABLE 11, regarding to the discharge for the public sewage system. It was concluded that the treatment system is the appropriate for discharging the treated water into the sewage system without any problem. It is recommended that PROALIM Company implements the treatment system to accomplish the environmental regulations and avoid sanctions.