This work provides inspiration to foster Problem-Based Learning (PBL) in teaching practices related to waste management. Problem-Based Learning is about providing a learning environment where students can work practically and theoretically with problems of relevance for society. In this learning process, students themselves will define societally important problems and direct the problem identification, problem analysis, and problem-solving processes. The PBL approach at the engineering and technical faculties at Aalborg University acts as a case of inspiration to exemplify how the structure of a problem-based project can foster students' competencies and agency to contribute to a circular economy related to waste.