This lecture covers waste management, including operating waste, construction waste, and polluted sites. It discusses legal bases for waste treatment, solutions to reduce waste, and the transformation of waste elements. The lecture also explores recycling techniques, such as using granules in construction, and provides real examples of waste treatment processes. Additionally, it delves into the challenges of recycling medical and special waste, as well as the importance of deconstruction and proper waste sorting on construction sites. The lecture concludes with a focus on the legal obligations and responsibilities related to waste management and polluted sites.