Skip to main content
OXY-INJECTOR VENTOXAL™ Oxygen-transfer system for wastewater treatment


Oxygen-transfer system for wastewater treatment

How it works

The OXY-INJECTOR VENTOXAL™  is an oxygen (O2) transfer equipment designed to be immersed in a wastewater activated sludge system.

The OXY-INJECTOR VENTOXAL™ is composed of a frame, pump, gas-liquid contactor and a set of mixing ejectors which are connected to a power-control cabinet and a gas cabinet expertly installed close to the basin. It comes in  two versions to fit the basin configuration: a compact version with a submersible pump, and an external pump version.

The water to be treated is pumped into the gas-liquid contactor where O2 is broken down into fine bubble to maximize dissolution and the  oxygen-enriched stream is injected at the bottom of the basin through mixing ejectors in order to optimize overall oxygenation and water mixing.

Contact our wastewater treatment specialist

Michel Epiney

514 949-6529

Send an email


OXY INJECTOR-VENTOXAL™  is designed specifically for deep basins (typically more than 6 meters in depth). It is available in 4 differents sizes to suit  various basin geometry and space availability.

Benefits of OXY INJECTOR-VENTOXAL™ technology:

  • Increased biological treatment capacity peak (shaving or permanent)
  • Large oxygenation capacity
  • A crane carefully positioned the unit at the bottom of the basin.
  • Very high O2 transfer with low energy requirements
  • Pure oxygen addition linked to D.O control
  • Reduced footprint of new biological plant
  • Stabilized aerobic sludge
  • Improved sludge settling
  • Odor abatement


You will find below the list of industries for which Air Liquide's OXY-INJECTOR VENTOXAL™ technology can be used to complement the existing wastewater treatment