Against the backdrop of increasing demands for resource-efficient waste recovery and the goal of energy self-sufficiency for municipal wastewater treatment plants, there is a growing need for innovative solutions for the thermal recovery of sewage sludge. Against this backdrop, the “ReKlär” project-financed by the Saxon Development Bank (SAB) with a total budget of 1.9 million EUR has been launched in partnership with a Saxon network of industry and research institutions. The goal is to develop an innovative integrated system that enables small and medium-sized municipal wastewater treatment plants, in particular, to recycle sewage sludge in a cost-effective and resource-efficient manner.