A screw press, also known as a screw press filter orauger press, is a mechanical device designed for efficient solid-liquid separation in water treatment and biomass processing applications. Specifically tailored for water plants, this equipment is used to dewater, compress, and recover valuable materials from aquatic vegetation, algae, or sludge generated in hydroponic systems, wastewater facilities, or aquaculture operations.
The unit typically features a helical screw rotating within a cylindrical screen basket, which applies progressive pressure to the feed material. As the screw advances, water and liquids are forced through theperforated screen, while the dry solids are discharged at the end. This high-pressure design ensures optimal dewatering efficiency, reducing the moisture content of aquatic biomass to 50-60% or lower.