Screw Screen
Introduction
The Screw Screen by Purecreek Environmental Services is a reliable solution for the mechanical pretreatment of wastewater. Designed for municipal and industrial applications, it effectively removes solids, rags, and fibrous materials while protecting downstream pumps, tanks, and treatment processes. With an optional integrated compactor, it reduces screenings volume and disposal costs.
Applications
- Municipal wastewater headworks and pumping stations
- Industrial wastewater: food & beverage, pulp & paper, petrochemical, mining
- Protection of downstream membranes, pumps, and biological processes
How It Works
Wastewater enters through the screen section, where solids are retained while liquids pass through. A spiral screw conveyor transports the captured solids upwards. In compactor models, the screenings are dewatered and volume is reduced by up to 40–50%. This ensures minimal waste handling and cleaner plant operation.
Models & Options
- Screen Elements: perforated plate (2–6 mm), wedge wire, or mesh design
- Configurations:
• Channel-mounted inclined screw screen
• Vertical screw screen
• Enclosed tank-mounted versions - Materials: Stainless steel AISI 304 / 316 (standard), carbon steel with anti-corrosion coating available
- Capacities: custom-designed for flows up to 500 m³/h
Technical Specifications (example values, customizable)
|
Parameter |
Value / Options |
|
Flow capacity |
up to 500 m³/h |
|
Screen opening sizes |
2–10 mm (custom) |
|
Inclination angle |
30–45° (inclined) / vertical versions |
|
Motor power |
1–10 kW depending on size |
|
Material of construction |
Stainless steel 304 / 316 |
Key Benefits
- Efficient solids removal for municipal and industrial wastewater
- Integrated compaction to minimize screenings volume and disposal costs
- Durable stainless steel design for long service life in corrosive environments
- Easy maintenance with replaceable screen panels and self-cleaning brushes
- Compact footprint for easy installation in new or existing plants
Compliance
Purecreek screw screens are engineered in partnership with SEFT Group and meet Canadian standards (CSA, UL, ETL) for mechanical wastewater treatment equipment.
Case Reference
In a Saskatchewan municipal treatment plant, installation of a screw screen reduced downstream pump blockages by over 40%, cutting maintenance time and operational costs significantly.
Maintenance & Operation
- Automatic cleaning with rotating brushes
- Low maintenance requirements (scheduled inspections only)
- Replaceable screening elements and wear parts
- Safety guards to ensure operator protection
Call to Action
👉 Download datasheet or Contact Purecreek Environmental Services today to request a customized screw screen solution for your wastewater treatment project.
