Evaluación de la eficiencia del proceso de potabilización de agua de la planta Patamarca-San Andrés

Abstract

Thisstudyaimstoassesstheefficiency of thepurification of drinkingwater Patamarca-San Andrés bymeasuringphysical, chemical and microbiologicalparametersthroughouttheprocess. Thisstudyisdescriptive, quantitative, analytical and non-experimental cross- sectional. Theanalyticalsamplesweretakentreatmentfromcheckpointprocess: Desarenador (rawwater), Sedimentation (settled wáter), Filtration (filtered wáter) y disinfectionunit (treatedwater) . 14 sampleswereanalyzed. Theevaluatedparameters are: Physical (pH, color, turbidez, total disolved solids), chemical( nitrates, nitrites, residual chlorine) and microbiological ( total and fecal coliforms). Theefficiencywasevaluated in stages of sedimentation, filtration and disinfectingtoknowthedegree of removal at eachstage. In additionverifiediftreatedwatermeetstherequirements standard INEN 1108:2014. Theoverallresultswerepresentedusingdescriptivestatistics and box graphic and whiskergraphic. Fortheanalysis, results in each point the water treatment (desarenador, sedimentation, filtration and disinfection) was comparisons incoming water and outgoing water, throughvariance analysis (ANOVA) and Scheffé's method (post-hoc ANOVA) for physical and microbiological parameters analyzed. For analysis of chemical parameters was used Student's t-testthetwotailed test becausethemeasurements was only in two points the water treatment (desarenador and disinfection). The chlorine, free was measure in the disinfection process, consequently it wasn´t compare with other process. Toevaluatetheefficiency in stages of processpurification: sedimentation, filtration and disinfectionisfoundthattheefficiencywas regular < 70 % in stages of sedimentation and filtration and good (70-80%) onthestagedisinfection.