Avaliação da qualidade da água do sistema de abastecimento da cidade de Murici - AL

Abstract

The control of the quality of the water of supply is a measure that mainly aims at the monitoring and the improvement of the water resources provided to the consumers. Concern is needed because water is a means of easily transmitting disease. The objective of this research was to evaluate the quality of the water distributed to the population by the supply system of the city of Murici - AL. The water from this system reaches the residences and is often consumed without any complementary domestic treatment. Samples of raw water, treated water from the treatment station and supply areas were collected. Collections were collected in 14 points and on three different dates. Physical-chemical and bacteriological analyzes were performed in all samples. The bacteriological analyzes were done to determine the presence of total coliforms, E. coli and standard counts of heterotrophic bacteria in plaque. The physicalchemical analyzes evaluated free residual chlorine, turbidity, pH, apparent color and total dissolved solids. All samples were negative for total coliforms and E. coli. For heterotrophic bacteria the samples had a plate count below 500 CFU / mL. All samples were within the standard set by legislation for free residual chlorine, pH, color, turbidity, and total dissolved solids. The water treatment provided to the population of the municipality is being efficient, all parameters analyzed are in accordance with the standards of potability established by Ministry of Health Ordinance No. 2,914 / 11.