Life Cycle Assessment; Refractories; Resource Depletion; Recycling; Circular Economy
Abstract :
[en] Organizations are now integrating life cycle thinking tools and techniques into decision-making to enable an analysis of the environmental impacts associated with all stages of a product's life. In this context, mining has been questioned by the widespread consensus that reducing resource consumption is a requirement for sustainable development. On the other side, it is clear that, due to dissipation, virgin raw materials will always be needed, and that circular economy thinking should integrate the mining industry and not oppose it. From this emerges the concern of resource depletion and the abiotic depletion potential (ADP) comes therefore as an attempt to assess the risk of depletion within life cycle assessment (LCA) methodology. However, when it comes to mineral resources, a lot of general assumptions are made, and the specificities of each element are often neglected. By attempting to include anthropogenic stocks in the calculations, some authors also neglect the singularities of each product. LCA has proven to be a powerful tool and its successful application within the refractory industry depends on collaboration between organisations in order to fill the numerous lacks of data availability and to overcome the challenges ahead. This paper is part of a PhD project that aims to build a database of magnesia production, from the mine to the kiln, to support LCA as well as to discuss resource depletion within the methodology and to account for the benefits and challenges of refractory recycling, focusing on magnesia bricks.
