Rotary Drum Thickener
A thickening stage that increases sludge concentration before further dewatering.
A Rotary Drum Thickener uses a rotating drum and filtration media to remove part of the water before sludge enters the next dewatering unit.
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Product overview
A Rotary Drum Thickener uses a rotating drum and filtration media to remove part of the water before sludge enters the next dewatering unit.
Configuration and specifications are determined from process requirements and options confirmed by the principal.

Verified technical data
Models and configurations
- Drum capacity and size are configured to process requirements
- Indicative inlet solids
- Approximately 2 to 3 percent
- Target outlet solids
- Approximately 4 to 5 percent
- Recommended inlet limit
- Not recommended above 5 percent solids
- Operation
- Continuous with adjustable drum speed
- Washing
- Automatic washing
- Polymer requirement
- Required, PAM Unit not included
Standard scope
- Rotating drum, filtration media, frame, drive, and automatic washing system
Options and separate equipment
- Protective cover
- PAM Preparation Unit as separate equipment
Features and scope
- Continuous thickening process
- Supports an integrated dewatering train
- Media selection follows application characteristics
Relevant applications
Data for consultation
- Sludge flow and inlet solids percentage
- Target outlet solids before dewatering
- Sludge characteristics and polymer test results
- Available wash water, power, and installation space
Frequently asked questions
Related products

Screw Press
Continuous dewatering with a ring and screw construction for sludge treatment requirements.

PAM Preparation Unit
Polymer solution preparation system supporting consistent flocculation.

Wire Mesh
Replacement media for suitable Rotary Drum Thickener requirements.
Technical consultation
Not sure which product fits?
Share your process conditions, constraints, and target. The Zaitunindo team will help define the next evaluation step.

