This study presents innovative processes and technologies of the circular economy. The case studies come from a range of industries that are of particular importance to Hesse and demonstrate the broad applicability of the technologies presented. The case studies are split into five main groups, each containing a few innovative and sustainable projects by various institutions and firms. They also offer insights into the economic and ecological advantages of the projects and provide the readers with a thorough understanding of the processes.

In this project, Ecologic Institute reviewed and analyzed 17 inspiring examples of how companies and researchers put the circular economy into practice: from the recycling of construction materials and metals, the improvement of sorting and recycling plastics, to new business models that help turn waste into raw materials or keep materials longer in the loop through services.