Evaluación de la calidad de agua y sistema de abastecimiento de agua de la junta administradora de agua potable de San Antonio de Chillo Jijón Amaguaña.

Abstract

During the technical visits to the San Antonio de Chillo Jijón, Amaguaña drinking water administration board, seven relevant monitoring points were considered along with the water supply and distribution network, such as two catchment sources (filtration galleries), two catchment tanks, one disinfection tank and two consumption points (homes) monitoring along with the water supply and distribution networks such as two catchment sources (filtration galleries), two catchment tanks, a disinfection tank, and two points of consumption (homes), in which in situ analysis of parameters such as pH, temperature, turbidity, dissolved oxygen and conductivity; and laboratory parameters such as alkalinity, residual free chlorine, chemical oxygen demand (COD), biological oxygen demand (BOD5), ), total hardness, phosphates, total iron, manganese, nitrates, nitrites, ammonia nitrogen, total solids, total dissolved solids, total coliforms, and fecal coliforms. On the other hand, when processing the information obtained from the physicalchemical and microbiological analyses, the water quality index was determined, which showed good water quality; however, there was evidence of dissolved oxygen deficiency at all monitoring points and a low amount of free residual chlorine at the points sampled after the disinfection process. In addition, excess phosphates and manganese were evidenced in all the sampled points. Since none of the aforementioned parameters complies with the maximum permissible limits, the implementation of an aeration tower was proposed, which will improve odor and taste, transfer oxygen to the water to increase dissolved oxygen, reduce phosphates and oxidize manganese to improve the current treatment process and at the same time benefit consumers.