In Switzerland, approximately 800,000 tons of combustion residues from waste incineration plants are generated annually. SELFRAG has developed an innovative technology to extract valuable metals and minerals from these residues, known as slag. With a recovery rate of 50% — three times higher than the industry average — the companymakes a significant contribution to sustainability by advancing the circular economy and reducing CO₂ emissions. SELFRAG is one of three finalists for the Green Business Award 2024.
Innovative Technology for Slag Recovery
SELFRAG has developed a technology that recovers all metals and many minerals from slag. This method achieves a recovery rate of 50%, which is three times higher than that of traditional processes. By converting waste into valuable materials, the company improves the recycling process and reduces the need for new mining.
Reduction of CO₂ Emissions
SELFRAG’s technology reduces CO₂ emissions by 200–250 kilograms per ton of slag. This helps lower the industry’s carbon footprint. In doing so, SELFRAG supports the transition to a circular economy and contributes to reducing greenhouse gas emissions.
Surpassing the Efficiency of Traditional Mining
The company recovers more copper from one ton of slag than is extracted from one ton of ore in the world’s largest copper mines. This high efficiency demonstrates the potential of the technology. It offers a sustainable alternative to traditional mining while maximizing the value of waste materials. In this way, the company helps conserve natural resources and secure a more sustainable future.
More information about the Green Business Award and SELFRAG.
