What grade, in degrees, is necessary for landfill cells?

In the context of landfill design, a specific grade is required for landfill cells to ensure proper drainage, compaction, and stability of the waste material. A grade of approximately 26.3 degrees is generally recognized as suitable because it allows for effective leachate management while minimizing the risk of erosion or collapse of the landfill structure.

This angle is designed to strike a balance between creating a stable slope that can support the weight of the landfill materials above it and enabling effective water runoff, thereby reducing the potential for water pooling that could lead to contamination issues. The requirement for this particular angle is derived from engineering guidelines that take into account the behavior of waste as it compacts and settles over time.

It’s important for sanitation professionals to adhere to this specification to maintain the integrity of landfill operations, ensuring that environmental regulations and safety standards are met.