How can completed sanitary landfills be reused as parks or playgrounds?

Completed sanitary landfills can be transformed into public spaces like parks, playgrounds, or golf courses through a process of careful closure and reclamation. This conversion is a key aspect of solid-waste management, allowing communities to repurpose land that might otherwise be considered useless.12

The process involves several critical engineering steps:

• Capping: Once a landfill is full, it is sealed with an impermeable cover—typically made of clay, a synthetic liner, or a combination of both—to prevent precipitation and surface runoff from entering the buried waste.13
• Grading and Soil Placement: A final layer of topsoil is placed over the cap, compacted, and graded to create a stable surface.14
• Vegetation: Various forms of vegetation are planted to stabilize the soil and improve the aesthetic quality of the site, helping the area blend into the surrounding landscape.14

By filling in declivities and leveling the terrain, these sites are prepared for public use, effectively turning former disposal areas into valuable community assets.12