Operation & Maintenance
Filtrate Management
Handling and returning the separated water
The filtrate is the water removed from the sludge. Its clarity is a direct indicator of dewatering performance, and its return to the plant must be managed so it does not overload the biological or clarification stages.
Filtrate as a performance gauge
Clear filtrate means solids are being captured in the cake; cloudy filtrate means fines are escaping and solids-capture rate is falling. Operators use filtrate clarity as an instant, no-cost check on polymer dose and back pressure. Persistently cloudy filtrate points to under-dosing, a blinded or damaged screen, or excessive back pressure forcing solids through.
Managing the return stream
- Return filtrate to the plant inlet or a balancing tank, not directly to sensitive stages.
- Account for the recycled solids and nutrient load in plant sizing.
- Monitor filtrate suspended solids as a capture-rate KPI.
RF Series Screw Press
Self-Cleaning Ring Disc Filter Elements
Fixed and moving stainless steel rings form the filtration gaps and keep them clear continuously — no filter cloth, no clogging.
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