Alfa Laval has introduced Screw Press 40 for simple, silent dewatering. With double capacity compared to the existing Screw Press 20, it serves mid size wastewater treatment plants and industrial customers that need a high performance, cost-efficient dewatering solution without previous thickening. Alfa Laval Screw Presses are designed for dewatering of flocculated slurry.

A patent pending frame with a lattice grid structure ensures structural strength with much less steel than a traditional screw press design. A light, planetary gearbox provides power transmission that enables a very high torque with low power consumption.

The screens of the Alfa Laval Screw Press 40 can be split vertically, enabling easy on-site maintenance of the conveyor from the side, while still mounted in the casing. If necessary, the conveyor can be removed from the side and put back, eliminating the need to send the entire screw press away for service.

Screw Press 40 also offers other advantages that are characteristic for the Alfa Laval screw press range: A pneumatic cleaning system that flushes the screw press screens while the press remains in continuous operation, a screw conveyor optimized for highest dewatering performance and the Alfa Laval polymer mixing valve, delivered as standard with every screw press. The mixing valve eliminates the need for a separate flocculator tank or mixer, reduces polymer consumption, and provides up to 5% better cake solids than without valve.

The Alfa Laval Screw Press 40 has a dewatering capacity up to 10 m3/h digested sludge or 20 m3/h waste activated sludge.

For more information, visit Alfa Laval website.