Presentation
The AirFlow aerator is a self-aspirating floating system designed to provide deep oxygenation and homogeneous mixing of effluents in lagoons, basins or wastewater treatment plants. Its operation is based on a partially submerged nozzle equipped with a helical-profile propeller. As it rotates, the propeller generates a vortex effect: air is naturally drawn in through the tube, then converted into fine bubbles projected towards the bottom of the basin. This mechanism simultaneously creates a powerful horizontal flow that homogenises the effluent and eliminates dead zones, even in large lagoons or basins with complex shapes.
The AirFlow also stands out for its floating design, based on high-density polyethylene, HDPE, floats filled with expanded polystyrene beads to guarantee unsinkability, even in the event of cracking. This structure allows flexible installation:
- As a floating suspended unit, ideal for lagoons or basins with variable water levels, such as ponds and natural lagooning systems.
- On a fixed metal frame, for concrete basins or installations requiring increased stability.
Model
BIOTRADE offers a complete AirFlow range, adapted to the various requirements of wastewater treatment plants.
Technical Specifications
- Motor:
- Nozzle and propeller:
- 304L / 316L stainless steel nozzle with a 3-blade propeller, generating a self-aspirating vortex.
- Inclination at 45° or 30°, depending on requirements.
- Floats:
- High-density polyethylene, HDPE, floats filled with expanded polystyrene beads for permanent buoyancy, even in the event of cracking.
- Metal suspension frame with mooring by support arms and cables.
- Support feet:
- AirFlow support feet allow the turbine to rest on the geotextile membrane at the bottom of the lagoon without tearing it if the water level drops.
- Power range from 2.2 to 22 kW.

