Domestic sewage treatment an analysis of the North Station of domestic sewage treatment of Presidente Venceslau – SP

Abstract

The release of domestic sewage, without treatment directly into water bodies, contributes to public and environmental health impacts, and investment in basic sanitation by Brazilian municipalities in domestic sewage treatment systems is essential. In general, biological treatment is used to reduce the organic load of domestic sewage and improve its quality, before its release into the environment. In this context, the present study sought to survey the operations performed at the Domestic Sewage Treatment Station (ETE) North of the municipality of Presidente Venceslau, located in the west of the State of São Paulo, for the treatment of domestic sewage and to evaluate the quality of the treated sewage and their impacts on the water body of release. Thus, the adopted domestic sewage treatment process was monitored, through fieldwork at the North ETE and a preliminary assessment of self-purification in a stretch of the stream after the release of the treated sewage. It was verified that the domestic sewage treatment technology adopted at the ETE Norte de Presidente Venceslau is a compact and effective treatment plant, with a series of equipment for the removal of organic matter and disinfection of domestic sewage before its release into the water body. In this way, ETE Norte must seek permanent efficiency, monitoring and control of the treatment of domestic sewage in the municipality studied, since the release of this effluent into water bodies can affect the quality of water, the local fauna and flora, as well as human health if it does not meet quality and legal requirements.