Ideal for dewatering difficult sludges of dissolved air floatation (DAF) and biological (aerobic and anaerobic) sludge and raw effluent flows that are prone to clogging traditional filter materials, especially those with;
The Volute DUO offers all of the advantages of the Volute FS screw press range but features twin counter-rotating screws within a single drum to break up and move materials that typically bind and harden during pressing.
Specialist in wastewater and trade effluent solutions to help bring your site into consent.
The Volute Duo Screw Press is designed to efficiently dewater sludge while overcoming the clogging and maintenance issues found in traditional screw presses.
Unlike conventional designs that rely on fixed openings, which can become blocked with solids over time, the Volute Duo Screw Press features a self-cleaning mechanism. Its alternating fixed and moving rings continuously clean the fine gaps, ensuring consistent water release and preventing blockages. This allows for a more compact and efficient press, reducing the need for oversized equipment while maintaining high dewatering performance.
A key advantage of the Volute Duo Screw Press is its friction-less operation, where the moving rings are guided by an external drive mechanism, preventing direct contact with the screw. This eliminates wear points, greatly extending the lifespan of consumable parts and reducing maintenance requirements.
Additionally, the system operates at a low screw rotation speed (2–4 RPM), resulting in significantly lower energy and much reduced water consumption compared to alternative dewatering technologies. The fully enclosed design further enhances performance by minimizing odours and noise, making it an ideal solution for facilities requiring reliable, cost-effective, and low-maintenance sludge treatment.
Volute Duo Datasheet
