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Con el objetivo de implementar un sistema de tratamiento del agua del tipo filtracion de multiples etapas para el consumo humano en las comunidades Balsa en Medio, Julian y Severino, Ecuador, a nivel de laboratorio se desarrollo un sistema a escala, estructurado por filtrado en arenas+gravas, seguido de filtracion con las zeolitas clinoptilolita y mordenita y finalmente se realizo el proceso de cloracion. Se empleo el diseno experimental completamente aleatorizado con cuatro repeticiones para los tratamientos. Los resultados indican que en la etapa de filtracion en arenas+gravas las variables DBO 5 ; solidos totales; coliformes fecales y turbiedad, alcanzaron niveles permitidos de acuerdo a las normas establecidas para el agua de consumo humano. El uso de zeolitas del tipo clinoptilolita y/o mordenita como procedimiento para complementar el proceso de filtracion, redujo significativamente los tenores de cobre, plomo, hierro, aluminio, cobalto y cromo. El uso del tratamiento con cloro despues del filtrado redujo en 87% la presencia de coliformes fecales reduciendo los valores dentro de los rangos permitidos. El sistema de tratamiento de aguas propuesto para las comunidades estudiadas es de facil operacion y mantenimiento, sus costos son aceptables y los insumos requeridos para su implantacion estan disponibles en el Ecuador. Abstract A scale system was developed with the objective of implementing a multi-stage filtration system of water treatment for human consumption in the communities of Balsa en Medio , Julian and Severino , Ecuador at the laboratory level.  Initially, it was structured by filtering in sands + gravels, followed by filtration with clinoptilolite and mordenite zeolites. Finally, the water chlorination process was carried out. The assay was developed with a completely randomized experimental design with four repetitions. The results indicate that in the filtration stage in sands + gravels, the BOD 5 variables, total solids, fecal coliforms and turbidity, reached permitted levels according to the norms established for water for human consumption. The use of clinoptilolite and/or mordenite zeolites as a method to complement the filtration process significantly reduced the copper, lead, iron, aluminum, cobalt and chromium levels. The use of the chlorine treatment after filtering reduced the presence of fecal coliforms by 87%, reducing the values within the permitted ranges. The water treatment system proposed for the communities studied is easy to operate and maintain, its costs are acceptable and the inputs required for its implementation are available in Ecuador.

ciencia unemi/ciencia unemi (en línea)

Sistema de tratamiento de aguas superficiales para consumo humano en la Microcuenca del río Carrizal, Ecuador.// Surface water treatment system for human consumption in the Microbasin of the Carrizal River, Ecuador.