Análise locacional para a construção de aterro sanitário em área predeterminada no município de Indiara, GO: caracterização e mapeamento das áreas adjacentes para avaliação de impacto ambiental

Abstract

This project aims to evaluate the technical locational viability of a sanitary landfill in the municipality of Indiara (Goiás, Brazil), research justified by the lack of adequate waste disposal in inland regions of the country and the necessity of mitigating environmental impacts. Since the area initially selected by the municipal government proved unviable, a new locational selection was chosen based on the technical criteria of Cruz and Almeida (2020), using a methodological approach that integrates secondary data, geological analysis, and geoprocessing tools. The geological mapping identified four main lithological units: the Anápolis-Itauçu Complex (NPlait), the Campestre Gneissic-Migmatitic Complex (NP2cam), Ferruginous Detrital-Lateritic Coverages (M1dl) and Alluvial Deposits (Q2a), which made possible the creation of geological, structural maps and a geological cross-section. For the assessment of risk and suitability of the study area and its immediate surroundings, maps of land use and land cover, flood susceptibility, slope, hypsometry, and potentiometry were generated. Considering that the newly proposed location meets most of the technical requirements for the implementation of a sanitary landfill, it is expected that the results will provide the necessary technical basis for effective decision-making regarding locational viability, and actively contribute to the sustainable management of solid waste in the municipality.