Execução de aterro de rejeitos de mineração de calcário no município de Caçapava do Sul – RS

Abstract

Limestone mining is an important activity for the extraction of raw material, however, this practice generates a modification in the exploitation site generating unusable residues and causing environmental impacts. This study is located in the limestone company surroundings named Dagoberto Barcellos S/A, in Caçapava do Sul. In this area there is a large contingent of calcareous rocks which features the Rio Grande do Sul Shield, the southwestern region of the State of Rio Grande do Sul, especially in the municipality of Caçapava do Sul, as large mining area. With the extraction of minerals, there is a significant change in the local structure of exploitation and its surroundings because it generated a volume of unusable waste that must be deposited correctly. In order to eliminate these wastes in an environmentally safe way, this study has the scope and elaboration and execution of a landfill of solid waste from mining activities. In this way, the area was characterized by satellite orbital images and data acquired in the field, with the purpose of knowing the area, planning and executing the procedure for construction of the landfill. This study is in the final phase of implementation, the results obtained up to the present moment were positive since there was a follow-up of environmental standards, such as the National Solid Waste Plan and the company's guidelines regarding its history of landfill works.