Sludge Types
Understanding sludge characteristics for optimal dewatering results
Sludge Type Guides
Municipal Sludge
Guide to municipal sludge types: primary, secondary, digested, and chemical sludge — characteristics and screw press dewatering parameters.
Waste Activated Sludge
Screw press dewatering of waste activated sludge (WAS): feed parameters, polymer dosing, and achievable cake solids.
DAF Sludge
Characteristics and screw press dewatering of dissolved air flotation (DAF) sludge from food, industrial, and municipal applications.
Industrial Sludge
Guide to industrial sludge types: chemical, biological, oily, fibrous, and mineral sludges — characteristics and dewatering approaches.
Sludge Cake Discharge
The dewatered cake drops into a discharge trough — ready for a conveyor, container or skip.
Explore the RF seriesReady to Find the Right Screw Press?
Our engineering team provides application-specific screw press sizing and selection — based on your sludge type, flow rate, and dewatering targets.