Mapping of the anthropogenic stock III (KartAL III) – Establishment of a material flow management by integration of recycling chains to increase the qualitative and quantitative recycling of metals and mineral building materials

The project "KartAL III - Mapping of the Anthropogenic Material Stock III - Establishment of Material Flow Management with the Integration of Recovery Chains for the Qualitative and Quantitative Increase of the Recycling of Metals and Mineral Building Materials" intensively investigates the material flows and recovery paths of seven non - ferrous metals and alloys and nine mineral building - materials. The aim of the project is to make a systematic and participatory contribution to further developing the circular economy into a resource - saving material flow economy. The material s in focus were examined regarding recycling to determine which material qualities must be achieved for them to substitute primary materials. In addition, further potential uses of the recycled materials were identified. The findings were discussed with al l involved stakeholders to identify sensitive value creation stages in which external influences might lead to a lack of high - quality recycling of secondary raw materials. Problems were identified and approaches to solving them were developed. In addition, this process was supported by a volume - flow forecast aiming to identify relevant waste flows whose improvement could have a major impact. This forecast includes modelling of future developments for the materials under consideration, considering important trends such as electromobility. The return flow of materials from the anthropogenic material stock back into the economic cycle and the effect of recycling on losses are illustrated. The project focused on the two material groups "mineral construction and demolition waste" and "base and special metals".