Análise dos contaminantes no solo do lixão de Crateús: impactos e propostas de recuperação

Abstract

This study aims to conduct a study on soil contaminants in the landfill in the municipality of Crateús, mapping their consequences on the soil and presenting possible solutions for the recovery of this site. This study was carried out based on soil analyses collected from the studied area, with three sampling points, two inside the landfill and one outside. With this analysis, it was possible to study the soil contamination parameters (lead, BOD, COD, sulfur, nitrate, pH, sulfate, alkalinity, nitrogen) and their consequences for the local population, identifying high levels of contamination in the soil collection areas inside the landfill area and acceptable levels at the point outside it. The impacts that landfills cause to the soil, groundwater, water and air are harmful to the environment, as they cause an accumulation of toxic substances. Given the results, intervention in the area is necessary, and the use of geomembranes is proposed as an alternative to prevent the percolation of this contaminant into the soil and consequently into the groundwater. Therefore, it was possible to produce a report with a discussion about the contaminants in the soil of the landfill in the municipality of Crateús.