Technology
Plate Settler vs. Conventional Clarifier
A Technical Comparison
Conventional circular or rectangular clarifiers rely on gravity settling in a large, open basin. Plate settlers achieve the same or better performance by stacking inclined plates to multiply the effective settling area. Here is a detailed comparison.
ParameterPlate SettlerConventional Clarifier
FootprintUp to 80% smallerLarge — requires significant floor space
Surface Loading Rate1.5–3.5 m/h0.5–1.0 m/h
TSS RemovalUp to 95%+60–80% (typical)
Installation TimeWeeks (modular/skid)Months (civil construction)
CAPEXLower — smaller tanks, less civil workHigher — large concrete structures
Energy UseMinimal (gravity-driven)Low to moderate
ScalabilityAdd modules — no new tanksBuild additional tanks
RetrofitYes — fits in existing tanksNo — complete replacement
Sludge RemovalCompact hoppers, frequent removalLarge hoppers, scrapers
MaintenanceLow — SS construction, minimal moving partsModerate — scrapers, drives
When to Choose a Plate Settler
Choose Plate Settler When:
- • Space is limited or expensive
- • Fast installation is required
- • Existing tanks can be retrofitted
- • Temporary or mobile clarification is needed
- • High TSS removal is critical
- • Low maintenance is a priority
Conventional May Suit:
- • Very large flows with ample land available
- • Low-solids applications with gentle settling
- • Existing infrastructure already in place
- • Applications requiring very long retention times
Request an Engineering Assessment
Our engineers will review your application, flow rates, and water quality data to recommend the optimal plate settler configuration.