Lateral Flow™ Decant System

Name: Lateral Flow™ Decant System
Brand: GFSS

Remove liquids laterally for superior sludge thickening — no moving parts.

What Is Lateral Dewatering?

Traditional supernatant decanting removes liquid only from the top of a sludge basin. The Lateral Flow™ Decant system takes a fundamentally different approach: stainless steel Wedgewater™ media panels installed in the basin wall remove liquid through the panel face — laterally — draining water from throughout the sludge column. The result is significantly higher solids concentration than top-only decanting can achieve.

How It Works

1

Sludge Fills Basin

Sludge or slurry is pumped into the holding basin or lagoon.
2

Lateral Flow Through Panels

Water passes laterally through the Wedgewater™ media panels installed in the basin wall.
3

Thickened Sludge Remains

Solids are retained and concentrate as liquid is continuously removed.
4

Pump to Dewatering

Thickened sludge is pumped to a filter bed, press, or disposal.

Key Benefits

Greater thickening than supernatant decanting alone
Custom panel sizing for any basin configuration
Compatible with chemical flocculation
No moving parts — zero mechanical maintenance
Low operating cost

Applications

Lagoon sludge thickening
Digester sludge thickening
Holding basin liquid removal
Pre-dewatering before press or centrifuge

Lateral Flow™ Decant vs. Supernatant Decanting

Factor	Lateral Flow™ Decant	Supernatant Decanting
Thickening Method	Lateral (through panel face)	Top-only (gravity settling)
Achievable Solids Concentration	Higher	Limited by settling alone
Moving Parts	None	Decant mechanism may be needed
Custom Sizing	Yes — any basin geometry	Limited by equipment specs
Polymer Compatible	Yes	Varies
Maintenance	Minimal	Moderate (mechanical decant)

Frequently Asked Questions

What is lateral dewatering and how does it differ from supernatant decanting?

Traditional supernatant decanting removes liquid only from the top of a sludge basin. Lateral Flow™ panels remove liquid through the panel face — horizontally — which drains water from throughout the sludge column, achieving significantly higher solids concentration.

Can Lateral Flow™ panels work with polymer conditioning?

Yes. The Lateral Flow™ system is fully compatible with chemical flocculation. Polymer conditioning can enhance performance, particularly with difficult-to-thicken sludges.

What basin configurations are supported?

Lateral Flow™ panels are custom-manufactured to fit your existing basin geometry. They can be installed in concrete walls, steel tanks, or earthen-lined structures with appropriate mounting hardware.