Multi-stage screening — bar screens, travelling band screens, drum and wedge-wire — removing seaweed, plastic, jellyfish and sediment to protect pumps and membranes.
Engineering Excellence for Marine Environments
Coastal waters carry seaweed, plastic, jellyfish blooms and suspended sediment that can clog pumps, foul heat exchangers and damage SWRO membranes. A staged screening train — coarse, fine and polishing — removes debris progressively while keeping head loss and marine-life impact low.
Staged from coarse to fine
50–100 mm bars with automatic trash rakes remove large debris and seaweed.
Continuous through- or dual-flow band screens with spray-wash and debris troughs.
High-capacity rotary screens for large flows in compact footprints.
1–3 mm slotted screens with airburst cleaning for fine, fish-friendly screening.
Modified band screens with low-pressure wash and return troughs to release impinged fish alive.
High-capacity drum screens, DAF and warning systems for bloom and red-tide events.
Aperture and velocity envelope
| Stage | Aperture | Approach Velocity | Removes |
|---|---|---|---|
| Coarse | 50 – 100 mm | <1.0 m/s | Logs, seaweed mats, large debris |
| Fine | 3 – 10 mm | <0.5 m/s | Plastics, small debris, large biota |
| Polishing | 1 – 3 mm | <0.15 m/s | Larvae, fine solids; fish-protective |
Continue across the seawater intake engineering series
Offshore submerged intakes and velocity-cap headworks for the largest duties.
Read MoreBeach wells and infiltration galleries for naturally filtered, low-SDI feed.
Read MoreChlorination, antifouling alloys and UV to keep intakes clear.
Read MoreSuper duplex, Cu-Ni, titanium and cathodic protection for marine service.
Read More316(b) fish protection, velocity caps and low-entrainment design.
Read MoreThe full seawater intake hub — challenges, configurations and specifications.
Read MoreBar, band and drum screens for intake debris removal.
Read MoreTwo-stage screening technology and selection.
Read MoreMedia and self-cleaning filters polishing intake seawater.
Read MoreContainerised intake screening and pre-treatment packages.
Read MoreTalk to our marine engineering team about screening & debris and a complete, compliant intake package — survivable, low-fouling and built for decades of service.
Our expertise spans multiple industries with sector-specific water treatment solutions.
Send your influent analysis and our engineers assess your process and recommend a tailored treatment solution — free, confidential and no obligation.
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