Evaluación de la calidad microbiológica del agua en la Planta de Potabilización EMAPAL-EP en la comunidad de Zhindilig

Abstract

The study’s objective was to evaluate the microbiological quality of drinking water distributed by the Zhindilig plant through microbiological indicators (total coliforms and fecal coliforms) exposed in NTE INEN 1108: 2014. Also, it was evaluated the bacteriological quality of the drinkable water that reaches in the community properties of Zhindilig and Guapan which supplies the water treatment plant. This study has a non-experimental, descriptive, cross-sectional design. The analysis were concluded during April, May and June 2016, a total of 252 samples were studied between raw water, treated water and water from properties of the communities of Zhindilig and Guapan. The data obtained were statistically analyzed using the following programs: Microsoft Excel 2013 and Stata 10.0.

The results showed that 100% of the water after the purification process did not present contamination, in which is complying with the microbiological requirements of NTE INEN 1108: 2014. In the case of Zhindilig properties, the drinking water presented 57.50% contamination with total coliforms, showing a re-contamination after leaving the plant. The presence of a storage tank that was distributed to the community was detected, the microbiological quality of the tank was analyzed for 5 days, an average value of 8 NMP / 100 ml was obtained for total coliforms. The water distributed to the community of Guapán does not pass through a reservoir tank and was shown to have 100% of samples that meet the microbiological requirements of NTE INEN 1108: 2014.