Name: Flow booster type ABS SB
Brand: Sulzer

Main benefits

Robust compact design
Can be used in tanks of all shapes
Hydrodynamic shape for optimum flow formation
Drive unit optimized for mixing application
Self-cleaning propeller blades ensure optimum operation with low energy input
Concrete pedestal with innovative coupling system which allows the unit to be raised and lowered for inspection even in filled tanks
Long operating life as the pedestal absorbs all dangerous vibrations

Main applications

Patented mixer coupling system
Energy-saving, self-cleaning propeller
Integral motors ranging from 1.4 to 4.5 kW (1.9 to 6 hp) for gentle circulation and mixing
Silicon carbide mechanical seal protected by a solids deflection ring
Condition monitoring (temperature, water ingress)
100 000 h bearing lifetime

Maximum mixing flow	4.3 m³/s (66,600 US gpm)
Maximum propeller diameter	2,500 mm (8.2 ft)

Biological process
The target of the biological process in wastewater treatment is to remove organic, biodegradable substances via the metabolism of microorganisms and related biochemical processes.
Equalization
The task of mixing in the equalization process is to blend the wastewater in order to prevent sedimentation, stratification and odor formation. It may also be necessary to mix and homogenize wastewater streams that arrive from different sources. Because the water level in the equalization tanks varies significantly and can sometimes be very low, high demands are placed upon the mixers.
Selector
The purpose of the selector tank is to control and limit the growth of filamentous bacteria, and then to enhance the sedimentation ability of the sludge. Sulzer provides a number of solutions for creating optimal conditions in the selector.
Tertiary treatment
Treated wastewater may occasionally require further treatment. Local discharge rules may pose strict limits that cannot be fulfilled by even the most effective process, or a higher quality of effluent may be requested for its reuse. When tertiary treatment is needed, various levels of filtration can be applied, including very fine filtration. Often, however, a final step of mixing and aeration is sufficient to achieve the target. When this is the case, Sulzer's submersible mixer types ABS XRW and RW can be used, along with submersible aerator type ABS TA–TAK and disc diffuser system types ABS PIK, DS and Sucoflow.