Floating Brush Aerators are ideally suited for operation in municipal sewage treatment lagoons, especially shallow lagoon applications where vertical shaft-type aerators cannot operate.
In a lagoon Floating Brush Aerators move the wastewater horizontally and create a circular flow pattern to prevent short-circuiting, and maximising lagoon treatment capacity. The horizontal mixing circulates highly oxygenated water throughout the lagoon, creating an oxygen cap to reduce odours from anaerobic breakdown of settled sludge.
The effective mixing provided by Floating Brush Aerators is also useful to create mixed conditions to minimise algal growth, and to redistribute accumulated sludge more evenly over the entire floor/base of the lagoon, thus improving lagoon treatment capacity & performance.
Floating Brush Aerators are also suitable for aeration in oxidation ditches, Pasveer channels, SBRs, equalization basins and aerobic digesters of all sizes and configurations.
Floating Brush Aerator operating in an oxidation ditch
*1Based on factory tested Standard Aeration Efficiency (SAE) of 1.8 kgO2/kWh. *2Based on factory tested Mixing Efficiency of 17.8 m3/min per kW
STANDARD INCLUSIONS + OPTIONS
✓= Standard Supply, o = Optional Supply
Equipment
FBA-022
FBA-037
FBA-056
FBA-075
FBA-110
FBA-150
FBA-186
FBA-220
Complete aerator assembly including frame, foam-filled floats, rotor with blades, splash shields (2x both sides of rotor), service platforms (2x), drive assembly comprising motor, gear reducer and coupling
✓
✓
✓
✓
✓
✓
✓
✓
Mooring arm assembly, comprising 2x 5.5m long mooring arms, 1x cross brace & 2x mooring/anchor caps and 2x mooring stakes, for lagoon mounting
✓
✓
✓
✓
✓
✓
✓
✓
Custom mooring system
o
o
o
o
o
o
o
o
*1Motor is TEFC, 415V, 3-ph, 50 Hz, class F insulation with IP55 protection & thermistors
✓
✓
✓
✓
✓
✓
✓
✓
Motor with custom IP rating
o
o
o
o
o
o
o
o
*2Rotor cover
o
o
o
o
o
o
o
o
*3Oil change kit
✓
✓
✓
✓
✓
✓
✓
✓
*1Motor suitable for DOL, VFD or soft start. *2Rotor cover eliminates spray. Splash shields are replaced by rotor cover when rotor cover is ordered. Note the rotor cover will lower the aeration efficiency by around 7.5%. *3Oil change kit required for gearbox oil changes. One (1) oil change kit is supplied with every aerator project regardless of quantity ordered.
Materials of construction
Components
Materials
Group 1
Drive end shaft & non-drive end shaft
316 SS
Group 2
Foam-filled floats, floatation band attachments, non-drive end bearing cover, motor cover, splash shields (2x) and optional rotor cover
304L SS
Group 3
Rotor and rotor blades, frame, drive enclosure, service platforms (2x) and mooring arm assembly
Option A
TGIC Powder Coated
Option B
Hot-dipped galvanised
Option C
304L SS
Option D
316L SS
STANDARD EXCLUSIONS
Control Panel
Power cable fitted with 3-ph plug, for termination at aerator motor junction box
Electrical 3-ph socket with local isolator mounted on a post, located at aerator on the embankment
