DIRETRIZES PARA A REDUÇÃO DA INCIDÊNCIA DE ODORES NA ESTAÇÃO DE TRATAMENTO DE ESGOTO SANTANA EM VARGINHA, CONSIDERANDO SEU IMPACTO NO BEM-ESTAR PÚBLICO

Abstract

In this work the results of the evaluation of the occurrence of unpleasant odors and the social impacts in a sewage treatment plant of the city of Varginha, Minas Gerais, are presented. The treatment system consists of an Upflow anaerobics ludge blanket digestion (UASB). Considering that the system is characterized by the treatment through anaerobiosis, the emission of bad odors occurs, causing annoyances for the resident population near the place. The theoretical foundations for understanding the subject are indicated, as well as the characterization of the treatment system through the visit to the place of study, with reports and photos. Thus, the possible incidence of odor emanation at each stage of the treatment was analyzed, considering also the residents' evaluation of the permanence, intensity and annoyance generated by the bad smell and, from its connection with the literature and with what was observed at the site visit, guidelines and alternatives will be presented for the reduction or elimination of the problem in question, divided into maintenance stages, indication of the minimum distance between the station and the residences, as well as the responsibilities of the municipality and the population.