Análises dos parâmetros físicos-químicos e microbiológicos do efluente da ETE localizada no município de Rio Formoso

Abstract

The investigation aimed to present the effluent treatment system of the city of Rio Formoso, to analyze the quality data of the effluents of the Sewage Treatment Station (STS) studied. Effluent is defined as all sanitary sewage, liquid waste consisting of domestic and industrial sewage, infiltration water and parasitic rainwater contribution. Through an ETE, the treatment of sanitary sewage is carried out, with the separation of the solid part from the liquid part, treating both, with a view to reducing pollution. It has the function of removing the organic load (basically made up of fats, carbohydrates and proteins) and treating the sewage that comes from homes and other environments in the cities and returning it in the form of treated water. ETE Rio Formoso is located at KM 52 of Highway PE – 60. It was designed to meet the need for sanitary sewage in the municipality of Rio Formoso and adjacent regions. The ETE has a secondary treatment system, adopts the technology of stabilization ponds. In Pernambuco, the company responsible for the treatment of treated effluent and Pernambuco Sanitaion Company (PSC), provided data from the historical series of physical-chemical and microbiological parameters of treated sewage between the years 2020 to 2021 for analysis. Comparing these data with the National Environment Council (NEC) resolutions 430/11, it was possible to analyze and identify the deficiencies in the treatment, together with their non-conformities and obtain the results. Both presented differences in the studied period, each one with its particularities, but both meet the quality standards required by CONAMA Resolution 430/2011