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The vertical UT flow accelerator or boosters apply in the oxidation ditch process (channel aeration), flow boosters installation and maintenance are flexible, reliable running, good performance, operating costs and running noise very low.
Propulsion is effected by one or more low speed vertical U type paddle, positioned in de bends of the aeration circuit.
The flow booster rotors are suspended on specially designed Outriggers extended, bearing life is maximized. Therefore the application of submerged lower bearings is no longer necessary.
Aeration takes place by means of diffusers (ceramic, plastic or membrane) mounted on the bottom of the aeration circuit.
UT flow accelerator or boosters features and advantage:
High oxygen transfer (3.8 to 4.5 kg O2/kWh);
Low propulsion energy (1.0 to 1.8 W/m3);
High overall efficiency; lower diffuser density
No velocity gradients over the water depth
No "dead" zones
Less complicated control systems
Lower propulsion energy required
No moving parts in the water
No sensitivity to fouling
Low maintenance and construction costs because of simple channel layout
Optimal process control by adjustment of aeration capacity, independing on propulsion
Denitrification is simply realised
Applicable in existing circuits with surface aerators