ASPECTOS TEÓRICOS E PRÁTICOS SOBRE A QUALIDADE DA ÁGUA

Abstract

Water quality is a major concern for humanity, as it is a limited resource on the planet. Knowing the causes of possible contamination of aquifers is an important method for preserving water systems. The aim of this work was therefore to carry out a theoretical and practical study of the water quality of two reservoirs in Catalão-Goiás. In addition, physico-chemical tests were carried out using a standard water analysis kit in order to gain a deeper insight into the potability of the water. Specifically, no ions such as phosphates, nitrates or ammonia were detected in aliquots from the Clube do Povo reservoir and the Bica reservoir, in the municipality of Catalão-Goiás. However, the tests indicated that the total hardness of the water, which reflects the presence of bivalent calcium and magnesium ions, was higher than permitted. The pH of the water samples was also within the permitted range. With these results, it can be seen that the reservoirs have a good standard of preservation, from the point of view of detection limits for certain physicochemical analytes. However, it is necessary to further investigate the factors that lead to total hardness levels above the permitted range.