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See All Clarifiers for Primary & Secondary Treatment

Envirex® Clarifier Retrofit, Upgrade, and Aftermarket Solutions

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

Evoqua Water Technologies works in partnership with treatment plants to ensure high performance efficiency and low total cost of ownership. We have over 80 years of experience in wastewater clarification and an extensive library of OEM drawings for Envirex®, FMC, and Passavant clarifiers. Our dedicated team of experts provide a full range of product and service options from clarifier inspections and maintenance training to installation services. Learn more about our Clarifier Inspection Program for Envirex branded and competitor equipment.

​Increase Clarifier Capacity and Optimize Phosphorus Removal

Maximize the performance of your clarifier with the Envirex clarifier design which features the FEDWA energy dissipating inlet and Tow-Bro hydraulic sludge removal system. These advanced technologies work together to reduce sludge retention time and improve effluent quality, increasing clarifier capacity and optimizing biological nutrient removal.

Multiple elements contribute to clarifier design, from flow patterns and solids settling to effluent collection. Our technical experts can evaluate your clarifier process to determine if your existing system is designed to meet your current and future treatment needs.

  • Spiral or plow type scrapers
  • Half and full bridge conventional scrapers
  • Hydraulic sludge removal
  • Tow-Bro® unitube header
  • Peripheral feed clarifier optimization
  • Rim-Flo® clarifiers
  • Energy dissipating inlets
  • Flocculating Efficiency to Energy Dissipating Well Arrangement (FEDWA) baffle system
  • Clarifier drive rebuilds and retrofits
  • Gravity thickeners
  • Envirex® Chain & Scrapers retrofits and rehabs
  • Envirex® Chain & Scraper components