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espanolEn esta investigacion se analizo la eficiencia de la medula de banano como sustancia coagulante en la clarificacion de aguas naturales y se comparo con el sulfato de aluminio. Se utilizo un diseno experimental factorial, siendo la dosis (10, 20, 40, 60, 80 y 100 mg/L) y el tipo de coagulante (quimico o natural) los factores. La turbidez del agua del rio Magdalena se empleo como variable respuesta. El proceso de clarificacion se realizo mediante la aplicacion de la prueba de jarras usando muestras de agua del rio en Barranquilla, departamento del Atlantico, Colombia. Se comprobo mediante el analisis estadistico ANOVA y la prueba de HSD (diferencia significativa) de Tukey, que el coagulante natural reduce la turbidez inicial del agua objeto de estudio (210 UNT) en un 67,57%. La medula de banano siendo un residuo agroindustrial es una opcion viable y sustentable en la remocion parcial de la turbidez del agua del rio Magdalena. EnglishThis research analyzed the efficiency of the banana pith as a coagulant substance in the clarification of natural waters and was compared with aluminium sulphate. It was used a factorial experimental design, being the dosage (10, 20, 40, 60, 80 and 100 mg/L) and the type of coagulant (chemical or natural) the factors. The turbidity of the Magdalena river water was used as a variable response. The clarification process was carried out by applying jar-test using water samples from the river in Barranquilla, Atlantico departament, Colombia. It was verified by the statistical analysis ANOVA and the Tukey's HSD (honestly significant difference) test, that the natural coagulant reduces the initial turbidity of the water object of study (210 NTU) in 67.57%. The banana pith being an agro-industrial waste is a viable and sustainable option in the partial removal of water turbidity in the Magdalena river.