Diseño de un sistema de aprovechamiento de las aguas residuales domesticas de un centro comercial de la ciudad de Guayaquil

Abstract

The objective of the research is the design of a domestic wastewater treatment system from a shopping center in the city of Guayaquil. The procedure carried out consisted of the initial characterization of the existing treatment system, since the shopping center has four types of effluent-generating activities: restaurants, commercial stores, hygienic services and maintenance, and parking areas. constituting your current treatment system into subsequent grease trap systems; When analyzing the effluent generated and the regulatory compliance with the current one, it is verified that the effluents only comply with the discharge centers of Hydrogen Potential, Temperature and Total Solids; Subsequently, the jar test was carried out by applying a pH correction with 20 ml of lime solution with a 1% concentration and different doses of 1% aluminum sulfate (2 ml, 3 ml, 4 ml, 5 ml , 6 ml, 7 ml, 6.5 ml and 7.5 ml), applying the Wilcomb Index, resulting in the dose that obtained the best result was 7 ml. The hypothesis testing was carried out with the application of Student's T, resulting in the best dose, after going through a filtration process, in addition to complying with the permissible discharge limits, has significant differences in the efficiency of the treatment in comparison with the control and the unfiltered sample. Considering that the shopping center generates a minimum flow of 41 m3/day and a maximum value of 65 m3/day, with an average value of 52.98 m3/day and 1609.00 m3/month, a utilization system is proposed that will allow the effluent to be discharged in compliance with with current regulations and allowing the treated water to be used as irrigation water for green areas.