ANÁLISE DA EFICIÊNCIA DA ESTAÇÃO DE TRATAMENTO DE ESGOTO DO MUNICÍPIO DE ITAUÇU – GOIÁS

Abstract

As a result of the various environmental damages caused by the inadequate disposal of sewers, laws and decrees were created that seek to provide for the conditions and standards for the discharge of effluents, setting values for the concentration of parameters to be obeyed by any polluting source that discharges its effluents directly into receiving bodies. The municipality of Itauçu, located in the Goiás State, is the birthplace of the source of the Meia Ponte River, one of the most important rivers in the State, and which is also the receiving body of the effluent from the Municipal Sewage Treatment Station (STS).Therefore, the objective was to evaluate the efficiency of the municipality's sewage treatment plant by analyzing the parameters BOD, COD, pH, temperature and suspended solids, as well as verifying that they are within the standards established by federal legislation through the Resolution CONAMA 430/2011 and State Decree no. 1,745 / 1979. According to the analysis of the averages of the period for each parameter, it was observed that there was great variability between some of them, with the exception of the pH and Temperature parameters.The treatment proved to be efficient, presenting values within the limits required by the legislation. Through the analysis of the COD / BOD ratio, it was noted that there was satisfactory removal of biodegradable matter. As for the removal of suspended solids, the station also showed good efficiency, within what is estimated for this type of treatment.