What is the function of a flow equalization tank?

The function of a flow equalization tank is to smooth out variations in flow, thereby preventing overloading of the wastewater treatment plant. This type of tank plays a crucial role in managing fluctuations in wastewater inflow that can occur due to factors such as peak usage times or heavy rainfall events. By temporarily storing excess flow, the flow equalization tank allows the treatment process to maintain a steady and optimal operation, ensuring that the system is not overwhelmed by sudden increases in volume.

In instances where the inflow is less than the treatment plant's capacity, the stored flow can be gradually released, facilitating a more consistent treatment process. This balancing act helps maintain the efficiency of biological treatment processes and other components of the plant, ultimately leading to better overall performance and compliance with regulatory standards.