Screw Press Sludge Dewatering Systems

Screw Press Dewatering, Mechanical treatment

Highlights:

  • Continuous operation — no clogging
  • Low power consumption
  • Compact footprint
  • Automatic washing and cleaning
  • Operates without high-pressure water or chemicals

Energy-efficient, low-maintenance sludge dewatering for municipal and industrial wastewater.

About the Technology

Screw press sludge dewatering combines thickening and dewatering in a single compact unit. The system operates through a moving screw and fixed/moving ring mechanism, creating progressive compression and continuous self-cleaning — ensuring clog-free, stable operation.
Working principle of screw press
Screw Press Dewatering, Mechanical treatment

Working Principle

Sludge enters the flocculation tank, where polymer addition promotes solid–liquid separation. The thickened sludge moves into the dewatering zone where the screw gradually narrows the pitch, increasing pressure and squeezing out water through moving and fixed rings. The filtrate exits through the gaps, and the dry sludge cake is discharged at the end plate.

Model Range (Selected)

Model Dry Sludge Capacity (kg DS/h) Typical Flow (m³/h @ 20,000 mg/L) Power (kW) Motor Dimensions (mm)
DW-131 4–14 0.5 0.3 0.37 1400×700×1100
DW-132 8–28 1.0 0.5 0.55 1600×800×1200
DW-202 16–40 1.5 0.75 0.75 1800×900×1200
DW-303 60–210 7.5 1.5 1.5 2200×1100×1300
DW-354 160–480 20 2.2 2.2 2600×1300×1400

Full model table available in the brochure (PDF).

Applications

  • Municipal wastewater treatment plants
  • Food & beverage industry
  • Chemical and pharmaceutical sludge
  • Mining & stone industry
  • Tannery, pulp & paper, textile dyeing
  • Power plants & electroplating wastewater

Why Choose Purecreek Screw Press Systems

  • Engineered for Canadian wastewater conditions (CSA-compliant)
  • Low maintenance and energy-efficient
  • Local service and spare parts availability
  • Custom integration with PLC/SCADA
  • Delivered turnkey or modular (plug-and-play)

Projects & Images

Sludge Dewatering, Mechanical treatment
Sludge Dewatering, Mechanical treatment
Sludge Dewatering, Mechanical treatment
Sludge Dewatering, Mechanical treatment
Sludge Dewatering, Mechanical treatment
Sludge Dewatering, Mechanical treatment

Containerized solution

Sludge Dewatering, Mechanical treatment
Sludge Dewatering, Mechanical treatment
 

About BluePurell Environmental Protection

BluePurell is a professional manufacturer of sludge dewatering and wastewater treatment equipment. The company specializes in screw press dewatering machines, DAF units, chemical preparation systems, and mechanical filtration equipment, widely used in municipal and industrial applications. Their products are known for stable performance, energy efficiency, and user-friendly automation, supported by international quality standards and years of engineering experience.