Red mud is a hazardous etching waste, which is produced after the mining of bauxite ore with sodium hydroxide in the Bayer process for the extraction of aluminium. 85 million tons of red mud from past and present metallurgical activities are dumped in landfills in countries in the Western Balkans, Greece and Hungary.
These landfills still contain significant amounts of heavy metals, including Fe, REEs and TiO2. The main objective is to establish a self-sustaining network of stakeholders along the Al value chain, including potential users of extracted heavy metal concentrates and potential users in the construction sector. In the further course of the project, this should ensure and optimise the waste-free extraction of metals and building materials, such as sand, from red mud residues.