Espacialização da rede de efluentes despejada no rio Pacoti, trecho Redenção e análise da qualidade da água

Abstract

The availability of potable water every day has been through an intense depreciation process, among the causes, we point out its contamination by effluent discharges. The work aims to identify the sewage discharge sites in Pacoti River by the central region of Redenção, CE. Thus, to analyze physicochemical parameters related to river water quality and how these parameters behave in the face of anthropic interference. The software ArcGIS 10.3 was used to map effluent disposal, odor points and critical areas. Water was collected at four points in the study area to analyze conductivity, turbidity, temperature, chloride, sodium, hardness, total dissolved solids (STD) and potential hydrogen. Results were divided into characterization of land use and occupation, identification of effluent discharges, and water physicochemical analysis. They showed that the point 2, the parameters of conductivity, turbidity, temperature, chloride and sodium presented values above the allowed. Six collective sewage ditches and 47 individual dumping points were identified, making possible to identify 3 critical areas that increase the environmental vulnerability. In conclusion, the water quality of the river is being compromised by the direct discharge of sewage, thus the areas with high discharge presented the highest inadequacies of the analyzed parameters.