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Skip Navigation LinksEvoqua Water Technologies > en > Brands > Envirex > The Captivator® System – an important step toward a net zero energy consuming WWTP

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Argun Erdogan
Product Manager
262.521.8472

The Captivator® System – an important step toward a net zero energy consuming WWTP

Produce more biogas and consume less energy and space

The Captivator®​ System improves a conventional anaerobic process by capturing and converting BOD to biogas that otherwise requires aeration energy. The system utilizes a VLR® Contact Tank to help biomass maximize the absorption of soluble BOD. A Folded Flow® DAF applied to the liquid stream removes and thickens the majority of biomass and incoming sludge at high overflow rates.

Read Captivator System Technical Papers.

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 applications

The Captivator System is ideal for the following applications:

  • The design of new wastewater plants, looking for more biogas production for conversion to energy
  • WWTP Plants looking to reduce aeration energy and drive to a net-zero energy plant
  • The retrofit of existing wastewater plants, providing a capacity increase with a more efficient use of existing space and tankage

 features

The Captivator System is comprised of three technologies:

  • VLR Aerated Contact Tank—Helps biomass absorb both soluble and colloidal BOD. Low energy disc aeration is incorporated into a space efficient design.
  • Folded Flow DAF- Efficiently removes and thickens the majority of the biomass and incoming SS, eliminates considerable footprint and capital costs, reduces grit sent to the digester and related maintenance costs.
  • Integrated Control System—Fine tunes performance of the system, provides seamless controls across technologies and eliminates unnecessary PLC’s.

 key benefits

  • Cost effective—Provides a cost effective alternative to primary clarifiers and separate sludge thickeners, lowering capital costs by up to 20%
  • Reduced footprint—Reduces the footprint of biological step of an activated sludge plant
  • Less energy—Reduces aeration energy up to 40%, shifts a plant energy balance toward net-zero energy usage
  • More biogas—Generates up to 40% more biogas
  • Economical—Improves the economics of converting biogas to electricity

 Watch The Captivator System Video

argun.erdogan@evoqua.com The Captivator® System – an important step toward a net zero energy consuming WWTP