Lamella Separators
Maximum settling area on a minimal footprint
- Up to 10× the effective settling area of a conventional tank
- Very small footprint – ideal where space is limited
- No moving parts in the separation zone – low maintenance
- Combines perfectly with coagulation and flocculation
- Stainless steel or coated steel construction
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Technical data
| Flow rate | 2 – 400 m³/h |
| Effective settling area | 10 – 500 m² |
| Plate spacing | 50 – 100 mm |
| Plate inclination | 55 – 60° |
| TSS removal | > 90% (with flocculation) |
| Material | Stainless steel 1.4301 / PP plates |
Indicative values. Final data is confirmed project-specifically.
How it works
Flocculation
Coagulant and flocculant form settleable flocs in the upstream reaction zone.
Distribution
The water is distributed evenly beneath the inclined plate pack.
Separation
Flocs settle on the plates over a short distance and slide down into the sludge hopper.
Discharge
Clarified water overflows at the top; thickened sludge is drawn off at the bottom.
Typical applications
Sizes & configurations
Lamella clarifiers — design parameters
| Parameter | Typical range | Remark |
|---|---|---|
| Surface load (projected area) | 3–25 m³/m²·h | Countercurrent designs typically 9–11 m³/m²·h |
| Plate inclination | 55–60° | Self-cleaning sludge discharge; co-current designs 30–40° |
| Plate spacing | 50–150 mm | Narrow spacing only with low solids load |
| Effective settling area | A = n × W × L × cos θ | n = number of plates, θ = inclination |
| Inlet velocity | 0.02–0.05 m/s | Prevents floc break-up |
| Plate length | 0.8–1.0 m | Longer plates for fine, slow-settling flocs |
| Reynolds number in the plate pack | < 200–500 | Laminar flow is a prerequisite for lamella separation |
| Clear water zone above the pack | 1.0–1.5 m | Uniform withdrawal via weirs or launders |
Literature design values for orientation, not a product specification. Sizing depends on settling velocity, solids load and flocculation.
Sources: ScienceDirect topic page "Lamella Clarifier"; Ecologix Systems; manufacturer design guidelines for inclined plate settlers.
Indicative values. Final data is confirmed project-specifically.
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