Centrifugal decanters for water purification

In water purification, the effectiveness of solid-liquid separation directly affects the quality of the final treatment and the cost-effectiveness of plant management. The sludge produced in purification cycles often presents difficult characteristics: variable concentrations, a high presence of fine solids and colloidal materials that resist conventional technologies. CBB Decanter centrifugal decanters offer a concrete solution to these critical issues, ensuring operational continuity, clarified water quality, and a sustainable reduction in disposal costs.

Industrial process

The sludge is pumped into a rapidly rotating cylindrical-conical drum, where centrifugal force imparts a sedimentation acceleration significantly greater than gravitational force. The solids compact on the internal wall of the drum and are conveyed towards the discharge by the screw, regulated in differential speed with respect to the rotating body. The clarified liquid is continuously extracted from the opposite zone, maintaining a clear separation between the two phases. The flexibility of the operating parameters allows the machine to be adapted to different types of sludge, primary, secondary, mixed, ensuring consistently high solid dryness and liquid clarity.

CBB Decanter Technology

CBB Decanters for water purification are designed to operate in environments where reliability is non-negotiable. Integrated control systems analyze flow rate, torque, and sludge density in real time, automatically correcting differential speed to maintain separation quality even in the face of sudden material changes. The components in contact with the mud are made of selected materials to resist abrasive wear and corrosion, ensuring long operating life even in plants operating 24 hours a day. The purification configurations integrate solutions for optimizing energy consumption and reducing maintenance costs, ensuring continuity and reliability throughout the production cycle.

Advantages of centrifugal separation

  • High separation efficiency even with complex sludges.
  • Reduction of volumes to be disposed of and operating costs.
  • Continuous 24/7 operation with minimal supervision.
  • Consistent quality of the clarified liquid and greater process stability.
  • Improved sludge management and reduction of overall energy consumption.

Frequently Asked Questions

They dewater sludge, reducing weight and volume, improving cycle efficiency and reducing disposal costs for the plant.

They guarantee operational continuity, process stability and simpler management of the sludge produced in both the civil and industrial sectors.

Yes, thanks to the dynamic control of torque, speed and flow rates that allows you to quickly adapt to variable sludge.

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