Leachate Recirculation Techniques

• Surficial Trenches: Percolating leachate into the waste using trenches is an inexpensive means of adding moisture and managing leachate onsite.
• Percolation Using Vertical Wells: Vertical weels are distributed throughout the landfill and are built up progressively with each new lift of waste.
• Pressure Injection Systems: Injecting leachate into vertical wells or horizontal trenches is another approach for adding moistrue to the waste that is popular for bioreactor operators.

Horizontal Injection Trench

Surface Gravity Trench