Wedgewater™ Polyurethane Filter Media
Interlocking polyurethane tiles — economical, corrosion-proof, practically indestructible.
What It Is
The Wedgewater™ Polyurethane Filter Media consists of 12″ × 12″ × 2″ interlocking high-strength polyurethane tiles designed for gravity sludge dewatering. Developed in 1978 as a more economical and corrosion-proof alternative to stainless steel wedgewire, this media has proven itself over four decades of continuous service at facilities across the country.
Four Reasons to Use Wedgewater™
Non-Clogging Design
2% open area with built-in underdrain system eliminates the clogging problems that plague other media types.
Fraction of Sand Bed Space
Achieves the same or better dewatering results in a dramatically smaller footprint than conventional sand drying beds.
Practically Indestructible
Corrosion-resistant, abrasion-resistant, and nonconductive. GFSS has installations from the late 1970s with original media still in service.
Fast Dewatering Cycle
Flocculated sludge dewaters to a liftable, truckable state in days. Dewatered cake is removed with a standard front-end loader.
Why Polyurethane vs. Stainless Steel?
- Lower capital cost — ideal for budget-constrained projects without sacrificing performance.
- Superior corrosion resistance — the right choice for septage, industrial, and chemically aggressive sludge streams.
- Zero replacement cost — the media is practically indestructible under normal operating conditions.
- Same filtrate quality — typically < 30 ppm suspended solids, comparable to stainless steel.
Performance Data
| Filtrate Quality | < 30 ppm suspended solids (typical) |
| Sludge Concentration Range | 1–5% |
| Tile Dimensions | 12″ × 12″ × 2″ |
| Open Area | 2% |
| Material | High-strength polyurethane |
Key Benefits
- Non-clogging design with 2% open area and built-in underdrain
- Requires only a fraction of sand bed space
- Practically indestructible — corrosion and abrasion resistant
- Flocculated sludge dewaters to liftable state in days
- More economical than stainless steel for many applications
- No media loss or replacement cost
Applications
- Municipal WWTP sludge
- Industrial process sludge
- Septage and vacuum truck waste
- Corrosive or abrasive sludge types
Frequently Asked Questions
How does polyurethane media compare to stainless steel wedgewire?
How long does the polyurethane media last?
What sludge concentrations can the media handle?
Related Products
Wedgewater™ Stainless Steel Filter Bed
Stainless steel wedgewire filter bed system that uses gravity to dewater municipal and industrial sludge in 2–5 days. No moving parts, no media loss, minimal maintenance.
Vacuum-Truck Waste Bed
Purpose-built receiving bed with stainless steel wedgewire trench screens for rapid dewatering of septage, hydro-excavation spoils, and vacuum truck waste at municipal facilities.