Equalization Tanks

Flow equalization tanks are designed to buffer flows to a wastewater treatment plant with variations in influent flow due to diurnal variation and wet weather events. Mixing is required in these basins to maintain solids in suspension, preventing deposition and equalizing load to the treatment plant.

A BioMix Compressed Gas Mixing System provides energy-efficient mixing while also accommodating significant variation in operating water levels. BioMix allows for adjustments in mixing intensity, mixing effectively at levels as low as just a few feet and exceeding the capabilities of jet or mechanical mixing.

For equalization tanks, a CAMix Cyclic Aerated Mixing System provides energy-efficient aeration and mixing for mixing limited applications. CAMix provides bottom-up mixing, with nearly no low-level limitations, exceeding the capabilities of jet aeration or floating aerators.

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“High tides can be problematic during high flow events… BioMix allows us to operate the EQ at varying levels, which minimizes any negative impacts with the biological process.” Greg H. – South Carolina WWTP


Energy Efficiency Icon
Energy Efficiency
  • Unequaled mixing efficiency of less than 0.1 hp / 1000 ft3
  • Proven O&M savings of more than 50% compared to jet or diffused air mixing
Straightforward Operation Icon
Straightforward Operation
  • No in-tank moving or wearing parts
  • Non-clog, maintenance free performance
Process Optimization
  • Operator-adjustable firing parameters that enable ideal mixed conditions without deposition and minimum energy input
  • Promotion of optimal conditions for biological nutrient removal processes upstream of BNR selectors
Unparalleled Flexibility Icon
Unparalleled Flexibility
  • Variable mixing intensity based on operating depth
  • No low-level limitations – ability to mix at any liquid depth
  • Compatible with any tank geometry or configuration
  • Nozzle headers installed along the slope of the floor, eliminating “dead spots” in cone bottom tanks