This lecture covers the design and management of landfills, focusing on topics such as implantation, water treatment, waste recovery, and site compliance. It discusses the technical aspects of bottom waterproofing, surface closure, and water control, emphasizing the importance of drainage systems, gas emissions control, and leachate treatment. The instructor explains the planning and authorization process, the construction requirements, and the post-operation management of landfills. Economic criteria, land costs, and agreements with owners are also addressed, highlighting the need for environmentally friendly and sustainable landfill practices.