SpiroSand for removal of sand and heavy sediments from sewage effluent

Benefits

The SpiroSand includes a shaftless screw device that rests on high-resistance wearing bars. When in the pulling position, the drive unit is installed at the top end of the unit, ensuring a watertight shaft seal.

• Less sediment in wastewater and other fluids thanks to effective separation
• Higher overall system capacity by removing impurities before processing
• Reduced abrasive wear on downstream machinery and equipment
• Smoother operations, reduced chance of plugging
• Overall reduction of waste volume because fluids can be re-used
• High-quality components for reliability and long life

Principle

• The water/sand mix enters from the top of the tank.
• The special inlet area design makes the flow laminar for better decantation.
• Sand settles at the bottom and is transported slowly through the submerged section of the U-trough (5 rpm). Once the level of the sand in the U-trough is higher than the water level and before reaching the discharge point, the excess water drains back down into the reservoir, leaving the sand relatively dry.
• Floating debris is also removed.
• Water is circulated through an overflow system.

Applications

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