What is a Static Screen for Wastewater Treatment?

Wiki Article

A static screen is a non-powered filtration device that relies on gravity and flow rate to separate solids from liquids. It typically consists of awedge wire panel mounted at an angle, usually between 45° and 60°, allowing water to flow downward. At the same time, solids are trapped and slide off into a collection bin.

This type of screen is sometimes referred to as a DSM screen, sieve bend screen, or parabolic screen, depending on the specific design.

The wedge wire static screen filter is essential for efficient solids separation in modern wastewater treatment processes.

How Does a Wastewater Treatment Static Screen Work?
Wastewater enters the screen chamber and flows over a curved wedge wire screen surface. As the liquid flows through the slots (available in different slot sizes, typically from 0.25mm to 1.0mm), solids such as sludge, fibers, and debris are retained on the surface. Gravity causes these retained particles to slide off the screen and into a discharge chute, while the filtered water m