Aspirating Aerator

The OxyStar® aspirating aerator is used in municipal and industrial wastewater applications to introduce oxygen into lagoons, equalization tanks or activated sludge basins. The unit provides efficient fine-bubble aeration and thorough circulation and mixing of basin contents. OxyStar aerators can be incorporated into any configuration including oxidation ditches, concentric basins and circular tanks and is an ideal solution for upgrading, retrofitting or replacing under-performing aeration methods.

How It Works

OxyStar aspirating aerators draw atmospheric air through the hollow shaft and discharge it into the water stream created by the rotating propeller. Due to high turbulence, fine-bubble aeration is achieved with excellent oxygen transfer efficiency. The protective fiberglass housing prevents any spray.

Flotation Mount

Sidewall Mount

Features & Specifications

  • Durable construction made with 304 stainless steel, cast iron or aluminum components
  • Self-cleaning propeller ensures permanent high performance
  • Air-cooled motor, hollow shaft and sophisticated three-blade propeller
  • Durable flotation pontoons with galvanized framework
  • Light weight units for easy installation
  • No submerged seals or bearings
  • Available in 3 – 30 hp. (2.2 – 22 kW)


  • Efficient oxygen transfer
  • No spray water – calm water surface
  • Negligible noise level
  • Dynamic balancing of coupling and propeller ensures smooth operation
  • Virtually maintenance free
  • No blowers, air pipes, covers or adjustable weirs

Plant Photos

Related Resources

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