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The primary function of the CQ Rotary Drum Thickener is to thicken sludge from 0.3 to 4% up to 6 to 8% dry solids, thereby reducing sludge volumes for disposal or further treatment.

From the integral mixer the CQ Rotary Drum Thickener receives treated sludge onto the internal surface of a wedgewire drum. The rotating action of the drum causes the free water to pass through the wedgewire while trapping the solids on the surface of the drum. Continuous rotation forces the solids to the discharge end causing further dewatering of the sludge. The thickened sludge is discharged to a hopper where it is pumped away.

The CQ Rotary Drum Thickener offers a simple self contained fully automatic method of sludge thickening.


Typical Applications

  • WAS sludge thickening
  • Primary sludge thickening
  • Co-settled sludge
  • Potable water residuals  
  • Industrial sludge


Key Benefits

  • Engineered for durability and long life
  • Fully automatic operation
  • Odor enclosed 
  • Quiet operation
  • Energy efficient, sustainable design
  • Process optimization through variable speed 
  • Low maintenance costs