Lamella Clarifier Calculation
Plate Count and Area for Lamella Systems
The lamella clarifier calculation determines projected area, plate count and pack dimensions for a target flow and effluent quality.
Lamella Clarifier Calculation
A lamella clarifier calculation uses the same core relationships as any inclined plate settler: required projected area from A = Q / SLR, then plate count from the projected area of each lamella.
The pack dimensions follow from the plate count, plate size and spacing. These, in turn, set the vessel footprint and the position of the inlet, overflow weirs and sludge hopper.
A complete calculation cross-checks the sludge mass loading against hopper capacity and desludge frequency so the sludge blanket stays clear of the lamellae.
A = Q / SLRRequired projected area [m²].
N = A / (L × W × cosθ)Number of lamella plates.
Inputs
Free Sizing Check
Try the interactive Plate Settler Sizing Calculator, or send us your flow and water-quality data for a preliminary sizing at no cost.
Key Considerations
Pack Dimensions
Plate count, size and spacing define the pack and vessel footprint.
Sludge Cross-Check
Confirm hopper volume against solids mass loading.
Distribution
Ensure the inlet feeds all lamellae evenly.
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