- High oxygen transfer (3 to 4 kg O2/kWh)
- Low propulsion energy (1.25 to 2.50 W/m3)
- High overall efficiency
- Lower diffuser density
- Low maintenance and construction costs because of simple channel layout.
- Optimal process control by adjustment of aeration capacity, in depending on propulsion.
- Denitrification is simply realized.
- Applicable in existing circuits with surface aerators.
