Set the flow, plate loading and module geometry — get the required plate (projected) area, the
plate count per module, the number of modules and the compact plan footprint. The retrofit answer when
you must add primary treatment without adding land.
1Duty & plates
Inclined plates stack the settling surface vertically, so plan area collapses. Size by plate
(projected) loading — lamella runs higher than a conventional basin because the path is short.
Results — plates & footprint
Plate area
—m²
Total plates
—#
Plan footprint
—m²
Item
Value
Basis
2Module geometry
How the plates pack into a shippable module and how little plan area it occupies.
Item
Value
Basis
Operation envelope
Item
Value
Basis
Quote the settler instruments at factory price
A lamella settler still needs a level transmitter, sludge blanket and an inlet TSS monitor — mappable
to our catalogue and supplied at the manufacturer's ex-works price (margin from the export rebate only).
Response within 24 hours · Inputs stay in your browser — nothing is uploaded.
Sources & parameter basis
[1]
Lamella / tube-settler practice (Hazen, WEF) — plate angle 50–60°, spacing 25–100 mm, plate projected loading typically 2–8 m/h (higher than conventional because the settling path is short); module height 1.5–3 m.
Full derivation and worked example: Lamella-Primary-Calculation-Sheet.md. The lamella settler is the retrofit primary — run it, then carry Q into the biological unit. In practice lamella occupies ~1/5–1/10 the plan area of a conventional clarifier.
