Análise da qualidade da água de abastecimento urbano no município de Planalto Alegre - SC

Abstract

The purpose of this study was to analyze the capacity of the water quality in the county of Planalto Alegre, by monitoring of physicochemical and bacteriological parameters such as; pH color turbidity apparent electrical conductivity, hardness free temperature, chlorine, total coliforms fluoride and, after passage of the water through the treatment plants. The results obtained were compared with the values recommended by order of the Ministry of Health (MOH) number 2.914 of 2011. Three samples were carried out at five different points, with Points A and B at the exit of the treatment systems and points C, D and E distributed around the city. For every point analyzed the results for total coliform and E.coli were negative. For the fluoride analysis, the results of all the points were analyzed according to the maximum allowed value (PMV) required by order of the (MOH) number 2.914 of 2011, but in some places the values were below the minimum established by ordinance number 635 of 1975. Referring to the values of free chlorine residual show an average value in all points analyzed very high above 5 mg.L¯1 , not taking into account the values of potability. For other parameters analyzed, all results obtained. Were in accordance wich recommends the current legislation. To stay inside of the potability standards, it is recommended the immediate reduction in the dosage of chlorine and a small elevation of the fluoride content of the water supply system and also the purchase of equipment to monitor these parameters in water distributed for human consumption in the municipality.