About Segmented Blade Clarifiers
Settled sludge is directed to the center by multiple blades pushing the sludge to the center over multiple passes of the rake arm.
Raking blades turned at an approximately 45-degree angle are supported from two structural support arms. The settled sludge is plowed inward from one blade to another until it is deposited into a sludge pit.
Advantages:
- Simple design.
- Nothing to “plug up” under water.
- Regardless of solids loading settled sludge will be transported
to the sludge pit.
Disadvantages:
- Sludge transport from the outside may take many hours, especially on
large (>100’ diameter) units, leading to the potential of septicity. - Under high flows and/or high solids loading conditions, the raking
mechanism may not be able to transport solids as quickly as they are
settling, causing a buildup of solids in the basin. The deeper sludge
blanket can lead to scouring and short circuiting.
Variations:
- Change to the angle of the blade to the radius.
- Increase the depth of all the blades.
- Increase the depth of each blade as it gets nearer to the center and
settle sludge sump. - Add two more half radius arms to aid in solids transport for clarifiers larger than 100’ diameter.
3D Models of Every Project
ClearStream develops a detailed 3D model for every unit manufactured, ensuring accurate fit-up and seamless integration with site-specific layouts. These models also serve as a valuable tool for operator training and system familiarization, providing clear insight into unit design and operation.
Clients are provided access to the 3D models, allowing them to view and manipulate the equipment from their own office or facility. This capability enables operations and maintenance personnel to virtually inspect the unit, plan maintenance activities, and understand internal components—without draining the tank or interrupting operation.
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