Clarifiers for Primary & Secondary Treatment

Clarification and separation technologies remove suspended solids from wastewater, providing clarified liquid effluent for downstream treatment processes

There are two main types of wastewater clarification; primary and secondary.  Primary clarification removes solids prior to biological treatment. Secondary clarification follows the biological treatment process with the main goal of rapidly returning activated sludge.

Evoqua offers a variety of wastewater clarification technologies for primary and secondary treatment.  Our Rim-Flo® circular clarifiers introduce feed at the periphery of tankage to increase treatment capacity and collect sludge with the our Tow-Bro® hydraulic sludge removal system. The Envirex® Chain & Scraper system from Evoqua includes high-strength non-metallic chain and durable flights to scrape sludge along the floor and skim floating solids.

Circular Clarifiers

Designed for virtually any size or configuration, including modular units for small & intermediate-sized applications

Rectangular Clarifiers

Provides maximum sludge concentrations or floating solids removal, regardless of treatment plant size or application

Retrofit and Rehab Solutions

Increase performance, reduce maintenance & extend equipment life

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Captivator® System

Captivator® System

Produce more biogas and consume less energy and space

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Chain and Scraper Systems

Chain and Scraper Systems

Proven, reliable, and cost-effective sludge collection technology

  • Clarification Application Primary
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Clarifier Drive Rebuild and Retrofit Services

Clarifier Drive Rebuild and Retrofit Services

Keep your clarifier operating at peak performance

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Envirex® Chain & Scraper Retrofits & Rehab

Envirex® Chain & Scraper Retrofits & Rehab

Increase performance, reduce maintenance, and extend equipment life

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Envirex® Chain and Scraper Components

Envirex® Chain and Scraper Components

Industry leading technologies for long-lasting performance

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Envirex® Clarifier Retrofit, Upgrade, and Aftermarket Solutions

Envirex® Clarifier Retrofit, Upgrade, and Aftermarket Solutions

Efficient, cost-effective solutions to maintain, rehabilitate and upgrade existing clarifiers

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Envirex® Conventional Scrapers

Envirex® Conventional Scrapers

Full and half bridge scrapers for primary water and wastewater treament

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FEDWA Energy Dissipating Inlet

FEDWA Energy Dissipating Inlet

A step up in circular clarifier capacity and efficiency

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Retrofit Riser Pipe Clarifiers with Tow-Bro® Circular Clarifiers

Retrofit Riser Pipe Clarifiers with Tow-Bro® Circular Clarifiers

High performance sludge removal header improves sludge blanket control and settled sludge removal

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Rim-Flo® Circular Clarifier

Rim-Flo® Circular Clarifier

Clarifiers with proven optimum hydraulic efficiency

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Tow-Bro® Secondary Clarifiers

Tow-Bro® Secondary Clarifiers

Rapid uniform removal of settled sludge for secondary clarifiers

  • Clarification Application Secondary
  • Clarifier Diameter: Feet 30'-200'
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