Aldrum Midi


Aldrum Midi

  • Long lasting filter cloth
  • Intermittent flushing saves water
  • Gentle treatment of flocculated feed saves polymer and gives high recovery
  • Safe design with bolted, hinged cover
  • Clean, enclosed, odour-free solution


Alfa Laval ALDRUM Drum Thickeners are ideal for mechanical thickening of sludge prior to digestion or dewatering, and for reducing sludge volume prior to storage or transportation. The ALDRUM Drum Thickener comes in two sizes, Mini and Midi, for capacities from 4- 22 m3/h (18-97 GPM on the basis of 1% dry solids waste activated sludge). They are available as separate components or as complete sludge thickening modules.

Technical details

Sludge type
Biology (<1%) DS %
Main motor
Filtered Wash Water, typical (m3/h)
Max. Hydraulic Flow (m³/h)
15 m³/h
Max. Mass Thoughput (kgDS/h)
150 kgDS/h
Min. Wash Water Pressure (bar)
Weight (kg)
600 kg
Width (mm)
750 mm
Length (mm)
3175 mm
Height (mm)
1100 mm