Avaliação da contaminação da água para o consumo humano por lixiviados de lixeira . Caso de estudo: lixeira de Hulene

Abstract

The aim of this study was to assess the quality of the water consumed by the communities near the Hulene dump. The methodology consisted of analyzing the physical-chemical and biological parameters of the water from the boreholes in the region near the dump. Samples were taken at five points and to assess the quality of the water, the following standards were taken into account the legal standards for the potability of water for human consumption were considered. law 16/91, Bulletin of the Republic of 2004. The parameters selected for the study are pH, Electrical Conductivity, Temperature, Dissolved Oxygen, Nitrates, Nitrites, phosphates, sulphates, alkalinity, fecal coliforms, hardness, chlorides and turbidity. The pH and temperature were measured at the sites during sample collection and the remaining parameters were analyzed at the National Water and Food Hygiene Laboratory (LNHAA). The water potability parameters analyzed were within the standards, except for nitrite concentration at points 2, 3 and 4. There is a suspicion that the groundwater in the Hulene area is being affected by the dump, because points 2, 3 and 4 closest to the dump to the dump have significantly higher nitrate and nitrite concentrations. higher. However, additional studies that include more sampling points and the direction of groundwater flow are needed to assess the impact of the dump on groundwater. impact of the dump on groundwater.(TRADUÇAO NOSSA)