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Wastewater Screens

Mechanical solid separation systems including bar screens, spiral sieves, drum screens, and flow sieves for sewage and industrial wastewater pre-treatment.

How Screening Works

Mechanical Solid Separation

Wastewater screens are the first line of defence in wastewater treatment, removing coarse and fine solids to protect downstream equipment and improve overall treatment efficiency. Our range covers everything from coarse bar screens to fine drum sieves.

Equipment Protection

Removes solids that could damage pumps, clog pipes, or foul downstream treatment processes. Essential for protecting expensive equipment and ensuring reliable plant operation.

Volume Reduction

Integrated compaction and drainage systems reduce screenings volume by 20-60%, significantly reducing disposal requirements and transportation requirements.

Automated Operation

Self-cleaning mechanisms and level sensors enable unattended operation with minimal maintenance requirements and consistent performance.

Screen Types

Solutions for Every Application

DF B/D Series

Screening Sieve (Bar Screen)

Bar screen for mechanical separation of solid contamination from sewage and industrial wastewater. Features 1.0–10.0mm perforation with adjustable rotary brush cleaning system. Compatible with screenings press for volume reduction.

Key Features

Perforation range: 1.0–10.0mm
Adjustable rotary brush cleaning
Compatible with screenings press
Continuous or intermittent operation
1-10
mm Perforation
20-60%
Volume Reduction
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DF SP Series

Vertical Spiral Sieve

Compact vertical spiral screen for solid-liquid separation in space-constrained installations. Wastewater enters through inlet chamber with emergency overflow, flows to cylindrical filtering basket (1.0–10.0mm perforation), with screenings removed by brush-equipped worm conveyor featuring compression-drainage.

Key Features

Compact vertical design
Emergency overflow protection
Brush-equipped worm conveyor
Integrated compression-drainage
1-10
mm Perforation
Compact
Footprint
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DF SSP/SSB Series

Spiral Duct Sieve

Channel-mounted screen for existing duct installations. SSP features fixed perforated plate with brush conveyor; SSB features rotary slotted drum with integrated worm conveyor. Both include compressing-draining segments for screenings volume reduction (20–60% drainage, 30–60% weight reduction).

Key Features

Channel-mounted design
SSP: Fixed plate with brush
SSB: Rotary slotted drum
30-60% weight reduction
20-60%
Drainage
30-60%
Weight Reduction
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DF SB Series

Drum Sieve

Rotating drum filter for mechanical solid separation with flow deflector for energy dissipation. Filtration barrier options: perforated, slotted, or mesh. Features hydraulic flushing system and self-cleaning capability. Screenings partially drained through drum angle.

Key Features

Perforated, slotted, or mesh options
Flow deflector for energy dissipation
Hydraulic flushing system
Self-cleaning capability
Multiple
Barrier Types
Self
Cleaning
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DF BV/DV Series

Flow Sieve

Semi-round sieve for separating biological reactor suspended bed blocks. Perforated surface constantly cleaned by motorized sweeping system. Mounted on reactor wall to prevent biomass escape while allowing treated water flow.

Key Features

Semi-round design
Motorized sweeping system
Reactor wall mounting
Prevents biomass escape
Biological
Reactors
Wall
Mounted
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Efficiency & Compliance

Operational Benefits

Reduced Disposal Rates

Integrated compaction and drainage reduce screenings volume by 20-60%, cutting transportation and disposal requirements significantly.

Equipment Protection

Effective solids removal prevents pump damage, pipe blockages, and fouling of downstream processes, reducing maintenance and replacement costs.

Automated Operation

Self-cleaning mechanisms and level sensors enable unattended operation, reducing labour costs and ensuring consistent performance.

Environmental Compliance

Proper screening ensures compliance with discharge regulations and prevents environmental contamination from solids in effluent.

Applications

Where Our Screens Excel

Municipal WWTP

Headworks screening for sewage treatment plants, protecting pumps and downstream processes from debris and solids.

Municipal Wastewater

Industrial Pre-treatment

Process wastewater screening for food & beverage, meat processing, dairy, and manufacturing facilities.

Industrial Pre-Treatment

Biological Reactors

Flow sieves for MBR and SBR systems to retain biomass while allowing treated water to exit the reactor.

Biological Treatment

Pump Stations

Inlet screening to protect pumps from damage and prevent blockages in force mains and distribution systems.

Pump Solutions

Automation & Control

SCADA Integration Available

SCADA & Control Systems

Our screening equipment can be integrated with SCADA for automated operation, level monitoring, and torque protection. Control screen operation based on upstream levels, receive blockage alerts, and monitor equipment health from a centralised interface.

Level ControlTorque MonitoringBlockage AlertsRuntime Tracking
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Applications

Industries We Serve

Municipal Wastewater

Inlet works screening for municipal treatment plants. Removes rags, debris, and coarse solids to protect downstream pumps, aerators, and clarifiers. Available in coarse (6-50mm) and fine (1-6mm) configurations with automatic screenings handling.

Municipal WWTP Solutions

Food Processing

Solids separation for food manufacturing wastewater streams. Removes packaging debris, vegetable matter, and organic solids from process water and CIP systems. Protects downstream advanced biological treatment and ensures compliance with discharge standards.

Food Processing Solutions

Poultry Processing

Heavy-duty screening for poultry facility wastewater. Handles feathers, fat, and organic solids from processing operations. Specialised designs prevent blinding and ensure continuous operation in high-solids environments with automated cleaning.

Poultry Processing Solutions

Industrial Pre-treatment

Pre-treatment screening for industrial facilities with high solids loading. Removes debris, fibres, and particulate matter from process wastewater. Protects downstream clarifiers, DAF units, and advanced biological treatment systems from damage and fouling.

View Pre-Treatment Solutions

Meat Processing

Specialised screening for meat and rendering facility wastewater. Handles bone fragments, tissue, and organic solids from slaughter and processing operations. Hygienic designs with automated washing ensure compliance with food safety regulations.

Meat Processing Solutions

Metro & Tunnelling

Construction site dewatering screening for tunnelling and excavation projects. Removes debris and coarse solids from groundwater discharge. Compact containerised units available for temporary installations with rapid deployment capabilities.

Metro & Tunnelling Solutions

Select the Right Screen for Your Application

Our engineers will analyse your flow rates, solids loading, and space constraints to recommend the optimal screening solution.

Industries We Serve

Our expertise spans multiple industries with sector-specific water treatment solutions.