Tecnologia de revegetação de áreas inóspitas em descomissionamento de minas

Abstract

a partir de geossintéticos. Após dez anos de exposição, fez-se a exumação dos elementos constituintes do produto instalado para avaliar a integridade do sistema após o período de exposição. A proposta ora apresentada demonstrou instalação e desempenho promissores no controle de erosão, com potencial para obras de revegetação de superfícies com alto ângulo de inclinação e com solos extremamente degradados, onde soluções convencionais têm pouco ou nenhum sucesso. ABSTRACT: Considering the importance of mining for the Brazilian economy, as well as the current regulatory scenario for the closure of mines, one must bear in mind, inseparably, the need to promote the restoration of areas degraded by mining. Therefore, preventive measures or rehabilitation of these areas need to be adopted, since the impacts generated can be immeasurable. In order to instigate reforestation and inhibit erosion, it was proposed to apply a product composed of galvanized screens with retaining bands, made from geosynthetics. After ten years of exposure, the constituent elements of the installed product were exhumed to assess the integrity of the system after the exposure period. The proposal now presented demonstrated promising installation and performance in erosion control, with the potential for reforestation of surfaces with a high inclination angle and with extremely degraded soils, where conventional solutions have little or no success.