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Sludge thickening

HUBER Rotary Screw Thickener S-DRUM (RoS2)

Manufacturer: HUBER Technology

Country: Germany

HUBER Rotary Screw Thickener S-DRUM (RoS2) thickens sludge before downstream dewatering, stabilisation or digestion. The RoS2 designation is used for this S-DRUM line.

Flocculated sludge enters the drum or screw section, where a slowly rotating screw moves the material along the filter surface. Free water separates as filtrate, and thickened sludge leaves with increased dry-solids concentration.

  • this is a thickener, not a screw press for final cake production;

  • polymer conditioning is applied according to sludge properties and the selected operating mode;

  • capacity and dry-solids result depend on sludge type and machine size.

Flow, dry-solids concentration, wash-water demand and polymer dosage depend on sludge properties and the selected configuration.

Specifications

Process typerotary screw thickening
Throughput per unit20-100 m³/h
Typical output solidsgreater than 7 %
Polymer consumption3-5 g/kg
Spray-water demand25 l/m³