- Rapid removal of sludge results in Less oxygen needed in biological system, No denitrification, No bio P re-release.
- Maximum solids concentration—A more concentrated RAS results in less RAS flow pumping
- Minimum sludge agitation—Achieved through a gentle removal action and a minimum of underwater disturbance
- Balanced hydraulic design—Removes settled solids in proportion to the area covered over a wide range of flows and permits low sludge blankets to be maintained for cleaner effluents
Clarifiers include spiral blade and traditional scraper type.