Destino do chorume de aterro sanitário: estudo de caso do município de Uberlândia

Abstract

The decomposition of organic waste produces a liquid that if not properly treated can cause changes in the physical and chemical characteristics of the place where it is disposed / released. One of the adopted ways to destine this effluent are the sewage treatment plants (STP), as is the case of the city of Uberlândia. Thus, the main objective of this work was to evaluate if the physical and chemical characteristics of the slurry have the potential to impair the efficiency of the treatment system performed in a STP. The methodology of this work consisted in the descriptive qualitative method being field research and information collection in the company Limpebrás Engenharia Ambiental and ETE Uberabinha, through interviews, observations and documentary analysis. The references described in the PROSAB were used to compare the characteristics present in the manure generated in the landfill of Uberlândia with other landfills in Brazil as well as data search in the literature. It is concluded that the addition of slurry has consequences in the biological treatment of urban sewage treatment plants, which may compromise the efficiency of the system. The parameters total zinc, surfactants, BOD and COD were above that established by PREMEND and for the combined treatment of leachate and domestic sewage in UASB reactor, it may be necessary that the effluent be submitted to a pretreatment process.