Landfill structure

Definition

Landfill structure refers to how waste disposal sites are designed and constructed to minimize environmental impacts. It involves creating layers of compacted trash separated by liners (such as clay or plastic) that prevent leachate (liquid waste) from contaminating soil and groundwater.

Related terms

Leachate: Leachate is liquid waste that is produced when water percolates through the layers of a landfill, picking up contaminants from the decomposing waste. It can be harmful to soil and groundwater if not properly managed.

Methane gas: Landfills produce methane gas as organic waste decomposes in an oxygen-deprived environment. Methane is a potent greenhouse gas that contributes to climate change.

Liner system: A liner system consists of multiple layers (such as clay, plastic, and geotextile) placed at the bottom and sides of a landfill to prevent leachate from seeping into the surrounding environment.