Niveles de Cloro residual libre en la red de distribución de agua potable en una institución de educación superior en la ciudad de Cali en el año 2019

Abstract

The present research study was carried out for seven weeks, a daily record of free residual chlorine levels, at four strategic points within the aqueduct network in a public institution of higher education, these records were taken to determine the potability of the water in the areas of greatest consumption and use of this resource. Free residual chlorine levels were established with the DPD reagent (Diethyl-P-Phenyl in Diamine) in drops, which when mixed with 10 ml of water in a two cell meter that reacted Immediately, giving a determined coloration for each sample, each result was compared with the standard colors printed on the meter, obtaining the numerical values of free residual chlorine per sample. Said values were tabulated and graphed, the following average values of free residual chlorine were obtained from the four-recording point: 1.1,1.0, 0.99, 0.90, mg/L starting from the point of the internal network closest to the feeding entrance, to the most distant points, respectively. Finally, how the resolution 2115 de 2007 contemplates that for the water to be potable, the levels of free residual chlorine must be between 0,3 y 2 ml/L it was concluded that the values obtained in the present study do belong to said range, regardless of whether the water in the studied areas were used for food, recreation or daily consumption.