Alvaro Pinto
Executive Director
Centro Ciência Viva do Lousal - Mina de Ciência | Faculdade de Ciências da Universidade de Lisboa
A Pioneering Project of Mine Rehabilitation of Sulphide-rich Ore Deposits Based on Geomorphic Solutions Coupled with AMD Chemical Stabilization at Lousal Mine, Portugal
The rehabilitation of the sulphide-rich Lousal mine in Portugal is the first case in Europe to combine geomorphic methodologies with geochemical solutions. A new rehabilitation topography was designed and built using the GeoFluv method; a two-layer chemical buffering edaphic blanket was extended over a highly contaminated, 1.6 hectares pilot drainage basin, associated with open limestone channels; and a widespread endemic vegetation cover was establishment in the intervention area. The project sought to create synergies between the beneficial effects of each of the rehabilitation actions implemented. Our first results strongly indicate the sustainability of the ecosystem created, which is fundamental to the economic viability of this solution in future mine reclamation projects. The insights obtained so far provide new knowledge and methodological innovations that can be extremely useful in current and future green mining scenarios.