Eight-foot diameter AerCyclone built above grade.

Twelve-foot diameter AerCyclone built below grade.

Efficient grit capture and removal can be one of the most valuable operations in a wastewater treatment facility, and the AerResearch AerCyclone is one of the most efficient grit capture devices available.

But the grit capture device only concentrates grit into a slurry. It is useless if the grit slurry is returned to the plant without being concentrated, de-watered and the grit hauled away. The heart of an effective grit de-watering system is a cyclone. It is only within a cyclone that the grit slurry can be reduced to a volume which can be effectively de-watered. The AerResearch grit cyclone reduces a grit slurry of three hundred gallons per minute to an easily treated five gallons per minute.

Even with an efficient grit capture device followed by a cyclone capable of concentrating the slurry, several other components are necessary. All these components must be properly sized and coordinated so that grit is actually removed from the system.

For these reasons, AerResearch recommends that the complete facility for removing, handling, concentrating and de-watering grit, including the related controls, be viewed as a single system. When grit removal and warranties are involved, they should be measured across the complete system rather than simply across one or two of the components.