The Alfa Laval ALDRUM system is ideal for thickening of sludge prior to digestion or dewatering, and for reducing sludge volume prior to storage or transportation.
Compact, robust and efficient
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
The Alfa Laval ALDRUM rotary drum filters are designed for small to medium capacity sludge thickening. Installation couldn’t be simpler – just bolt it in place and connect the external power and piping. This well-proven solution is known for its robust, straightforward design, making the ALDRUM drum thickener a reliable and user-friendly product. You benefit from low water consumption as the drum is cleaned intermittently using either potable water, final effluent or treated filtrate.
How it works
The ALDRUM drum thickener works on the principle of conveying polyelectrolyte-treated sludge (a.k.a. flocculated sludge) through a slowly rotating drum filter. The sludge remains in the drum while the water phase passes through the filter cloth.