Equalization tanks provide flow and load balancing for wastewater treatment, improving downstream process performance and efficiency.

Why Equalization is Important

Industrial and municipal wastewater flows vary significantly by time of day, day of week, and season. Equalization smooths these variations to provide consistent treatment conditions.

Benefits of Equalization

• Flow equalization: Smooths peak and minimum flows
• Load equalization: Dampens concentration variations
• Temperature equalization: Reduces temperature swings
• pH equalization: Allows mixing of acidic and alkaline streams
• Toxic shock protection: Dilutes toxic spikes

Design Considerations

• Detention time: 4-8 hours typical
• Mixing requirements: Prevent sedimentation
• Aeration for odor and septic control
• Level control and alarms
• Accessibility for maintenance

Types of Equalization

In-Line Equalization

Single tank with continuous inflow and outflow. Most common for variable industrial flows.

Batch Equalization

Tank fills, then discharges at controlled rate. Good for very variable flows.

Feiran EP Equalization Tanks

We supply complete equalization tank systems with mixing and aeration equipment.

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