Why is uniform distribution and dosing of wastewater important?

Uniform distribution and dosing of wastewater is essential for several reasons, primarily because it helps manage how the wastewater interacts with the soil and the environment.

When wastewater is evenly distributed, it reduces the risk of hydraulic overloading of the infiltrative surface. Hydraulic overloading can lead to areas of saturation, which in turn can cause the system to fail, resulting in untreated wastewater surfacing and causing pollution. By maintaining uniform distribution, the system can effectively handle the volume of wastewater, preventing localized saturation and promoting a healthy drainage pattern.

Additionally, uniform dosing enhances the aeration of the surrounding soil. When wastewater is applied evenly, it gives the soil microorganisms adequate contact with the nutrients in the wastewater, promoting effective biological treatment. Improved aeration is critical because aerobic bacteria play a vital role in breaking down organic matter in the wastewater. When soil is anaerobic (lacks oxygen), the wastewater treatment process can become less efficient, potentially allowing harmful substances to leach into groundwater.

Thus, both reducing hydraulic overloading and improving aeration are key benefits of uniform distribution, making this practice crucial for sustainable wastewater management.