Rotating disc screens — mesh-covered discs on a horizontal shaft give a large fine-screening area in a compact footprint at low head loss, an efficient alternative to drum and band screens.
Intake Screening for Water & Desalination Plants
A disc screen is a series of mesh-covered discs mounted on a rotating horizontal shaft; flow passes through the disc faces while debris is carried up on the rotating mesh and spray-washed off at the top. Because both faces of each disc screen, a disc unit packs a large fine-screening area into a short channel length, at low head loss.
Rotating disc filters and screens developed for water and wastewater through the mid-twentieth century, valued where a large fine-mesh area was needed in a compact, low-head package. Modern segmented-disc designs allow individual mesh panels to be replaced without removing the whole unit, and have become a mainstay of fine and tertiary screening.
Configurations in service
Mesh discs on a shaft; both faces screen for high area per length.
Individually replaceable mesh segments for easy maintenance.
Very fine mesh discs for algae and fine-solids polishing.
Flow path selected for the debris and cleaning regime.
An honest engineering assessment
Typical applications
Disc screens suit fine and tertiary intake screening, micro-screening of algae and fine solids, and sites where a large fine-mesh area is needed in a short, low-head channel.
The full intake-screen series
A companion intake-screen type — design, history and trade-offs.
Read MoreA companion intake-screen type — design, history and trade-offs.
Read MoreA companion intake-screen type — design, history and trade-offs.
Read MoreA companion intake-screen type — design, history and trade-offs.
Read MoreA companion intake-screen type — design, history and trade-offs.
Read MoreA companion intake-screen type — design, history and trade-offs.
Read MoreA companion intake-screen type — design, history and trade-offs.
Read MoreA companion intake-screen type — design, history and trade-offs.
Read MoreA companion intake-screen type — design, history and trade-offs.
Read MoreThe screening stage of the seawater intake series.
Read MoreIntake design integrated with SWRO pre-treatment.
Read MoreThe full seawater intake hub — structures, fouling, materials.
Read MoreBar, band and drum screens across our range.
Read MoreOur engineers select and size intake screening — disc screens and the full train — matched to your debris load, fish-protection duty and downstream process.
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