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Circular Clarifier Technology

Circular clarifiers provide reliable, gravity-driven separation of suspended solids from water and wastewater streams. Our bridge- and pier-supported designs handle flows from 100 m³/day to over 100,000 m³/day, with diameters ranging from 3 m to 45 m.

Each clarifier is engineered with optimised inlet well geometry, energy-dissipating feed wells, and high-efficiency rake mechanisms to ensure rapid flocculation, uniform settling, and complete sludge withdrawal. Options include peripheral and centre feed configurations, scum removal systems, and motorised sludge discharge.

Specifications & Operating Parameters

Diameter Range

3 – 50 m

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Flow Capacity

50 – 50,000 m³/day

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Side Water Depth

2.5 – 5.0 m

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Scraper Mechanism

Half-bridge, full-bridge, suction

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Drive Power

0.37 – 5.5 kW

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Overflow Rate

0.5 – 2.5 m/hr (design dependent)

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Materials

Mild steel (epoxy coated), SS304, SS316

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Sludge Removal

Peripheral hopper or suction header

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Where This Equipment Is Used

Proven across a wide range of industrial water and wastewater treatment processes.

Primary Settling

Removing settleable solids ahead of advanced biological treatment stages.

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Secondary Clarification

Removing biological solids following activated sludge treatment.

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Metals Precipitation

Converting dissolved metal ions to insoluble solids for removal.

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Lime Softening

Reducing hardness and alkalinity through lime precipitation.

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Phosphorus Removal

Chemical precipitation of phosphate to prevent eutrophication.

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Industrial Effluent

Treating factory wastewater to meet trade effluent consent limits.

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Related Processes

This equipment is commonly integrated into the following treatment processes.

Physico-Chemical Treatment

Coagulation, flocculation, and settling.

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Municipal WWTP

Primary and secondary clarification.

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Mining & Minerals

Metals precipitation and tailings thickening.

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Food Processing

Solids separation from process wastewater.

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Related Equipment

Explore complementary equipment within our product range.

Lamella Clarifier

Compact inclined plate clarifier alternative.

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DAF Flotation

Dissolved air flotation for lighter solids.

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Flocculator

Rapid and slow mixing for floc formation.

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Sludge Scraper

Peripheral and bottom scraping mechanisms.

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Industries We Serve

Our expertise spans multiple industries with sector-specific water treatment solutions.