* Autor a quien debe ser enviada la correspondenciaRecibido Ago. 29, 2017; Aceptado Nov. 7, 2017; Versión final Dic. 11, 2017, Publicado Jun. 2018 _____________________________________________________________________________________________________________________________________ ResumenEl estudio determinó el capacidad de sustancias naturales de Moringa, Cactus, Neem y Maíz en el tratamiento del agua del río Magdalena que consumen las comunidades del corregimiento de Palermo, en Colombia. Por medio de la prueba de jarras, se establecieron las dosis óptimas de coagulante, tiempo y velocidad de floculación. El sulfato de aluminio (0.02 g L -1 ) se utilizó como control. Los resultados mostraron que Moringa (2g L -1 ) redujo la turbidez en 96.8% y el color en 97.8% mientras que el control logró 95.7% y 96.5%, respectivamente. Por otro lado, el tratamiento con Neem (0.8g L -1 ) disminuyó 99.4% de los coliformes totales y 99.2% de los coliformes fecales mientras que el Maíz (2.5g L -1 ), redujo 94.4% de los coliformes totales. El uso de sustancias naturales es una alternativa asequible y sostenible de potabilización del agua del río Magdalena. Palabras clave: tratamiento de agua; sustancias naturales; Moringa oleifera; Opuntia ficus-indica; Azadirachta indica; Zea mays Natural Substances: Alternative for the Treatment of Magdalena River´s Water in Palermo Colombia AbstractThe study determined the capability of natural substances such as Moringa, Cactus, Neem and Corn on the treatment of water from Magdalena rive, water used by communities in the municipality of Palermo in Colombia. Through jars tests, optimal doses of coagulant, time and flocculation rate were established, aluminum sulfate (0.02 g L -1 ) was used as control. The results showed that Moringa (2g L -1 ) attenuated in 96.8% the turbidity and 97.8% of color while the conventional one obtained 95.7% and 96.5%, respectively; In turn, Neem (0.8g L -1 ) decreased 99.4% total coliforms and 99.2% of fecal coliforms. Also, Corn (2.5g L -1 ), reduced 94.4% of total coliforms. The use of natural substances is a feasible and sustainable alternative to water purification of the Magdalena river.
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