Carrousel® Systems

MAXIMUM TREATMENT,
MINIMUM EFFORT


• Meets the Most Stringent Effluent Nutrient Requirements
• Simple to Operate and Easy to Maintain
• Eliminate Chemical Dependency
• Reduce Energy Use
• Proven Technology – 700+ U.S. installations

Excell® Aerator

  • Efficiently provides all of the aeration and mixing required for the Carrousel Basin.
  • 3.85 lb O2/HP-hr
  • Power Turndown Up to 90%
  • 1 man day of maintenance/year
  • You Stay Clean! – No maintenance below the deck

Oculus™ System

  • The Process “All Seeing Eye”
  • User Friendly Interface
  • Efficient Aeration Control
  • Optimized Nutrient Removal
  • Save Energy
  • Reduce Chemical Dependency
  • Remote Access

EliminatIR™ Gate

  • Internal Recycle (IR) Control
  • Automatically adjusts to maximize Denitrification
  • IR rates between 0-12Q
  • Anaerobic Cycling for Phosphorus Removal

Ovivo sells the Carrousel® system under a license agreement. For further information about the availability of this product, please contact our Customer Contact Center. Carrousel® is a registered trademark of DHV BV.

In the denitIR® Carrousel® System an integral anoxic basin is added for Total Nitrogen removal without supplemental carbon addition. The internal recycle (IR) is large (6-15Q) and requires no additional power, taking advantage of the propulsion generated by the Excell® Aerator.

The automatically controlled EliminatIR™ Gate can be used to create anaerobic cycles in the anoxic zone in order to achieve phosphorus removal as well. This is called the AlternatIR™ System.

In the aerobic (Carrousel®) stage, BOD and ammonia oxidation (nitrification) proceed to completion. The Excell® Aerator provides all aeration and mixing required for the aerobic stage at all influent loading conditions.

Ovivo sells the Carrousel® system under a license agreement. For further information about the availability of this product, please contact our Customer Contact Center. Carrousel® is a registered trademark of DHV BV.

Ovivo offers competitive turnkey and traditional upgrade and retrofit pathways for your existing systems, even if you don’t already have a Carrousel system.

Upgrading your existing Carrousel System has never been easier or more worthwhile. Improve your efficiency, reduce your maintenance, or automate your process. Ovivo provides estimates for services and return on investment with a custom-made appraisal of your existing infrastructure.

You won’t be disappointed you called.

Ovivo sells the Carrousel® system under a license agreement. For further information about the availability of this product, please contact our Customer Contact Center. Carrousel® is a registered trademark of DHV BV.

Anaerobic 1st Anoxic Aerobic 2nd Anoxic Re-Aeration Effluent (mg/L)

BASIC CARROUSEL® SYSTEM
  BOD≤5
NH3-N²0.5

denitIR® CARROUSEL® SYSTEM
    BOD≤¬5
NH3-N≤¬0.5
TN≤¬5-8

AlternatIR™ SYSTEM
      BOD≤¬5
NH3-N≤¬0.5
TN≤¬5-8
TP≤¬0.3*

A2C™ SYSTEM
      BOD≤¬5
NH3-N≤¬0.5
TN≤¬5-8
TP≤¬0.3*

BARDENPHO® CARROUSEL® SYSTEM
        BOD≤¬5
NH3-N≤¬0.5
TN≤¬3

BARDENPHO®
CARROUSEL® SYSTEM
          BOD≤¬5
NH3-N≤¬0.5
TN≤¬3
TP≤¬0.3*

*May require trim doses of metal salts

Ovivo sells the Carrousel® system under a license agreement. For further information about the availability of this product, please contact our Customer Contact Center. Carrousel® is a registered trademark of DHV BV.

Carrousel® Systems:

a forward looking approach


A leading technology in wastewater treatment and biological nutrient removal, the Carrousel® system is universally praised for it’s durability, operational simplicity, low operating and maintenance costs, and consistently high effluent quality.

Carrousel Systems offer the lowest number of aerators per basin compared to other oxidation ditch systems, such as those that use horizontal shaft aerators. This greatly simplifies installation and maintenance requirements.

At a minimum, a Carrousel System consists of a “racetrack” style reactor basin with at least one vertical shaft, low-speed mechanical aerator, the Excell® Aerator, installed in the center of one of the turns. The basic Carrousel System is capable of full BOD and Ammonia reduction. Nutrient removal is easily added to a Carrousel System via the addition of anoxic and anaerobic selector zones, or even with simple, optimized operational strategies.

The Carrousel System utilizes the Modified Lutzack-Ettinger (MLE) configuration for highly efficient denitrification. This process is known as the denitIR® System, where internal recycle (IR) flow is directed into the anoxic zone via a slip-stream channel using propulsion generated by the Excell Aerator. No additional energy for IR pumping is required. IR flowrate is varied by the EliminatIR™ Gate. The Oculus™ Control System automatically controls the aeration rate and IR flow.

 

OVIVO: AN ENGINEERING PROCESS POWERHOUSE

The Ovivo Carrousel Process Team, which consists of decades of biological wastewater treatment plant design and innovation, has provided expertise and design assistance for wastewater treatment plants consisting of all shapes, sizes, and effluent permits.

CAPABILITIES:

  • Detail Design Support
  • Process Calculations
  • Equipment SizingProcess Guarantees
  • Extended Warranties
  • Retrofit Expertise
  • Process Training
  • Equipment Startup
  • Ovivo Connect (Asset Management)

OVIVO: AN ENGINEERING PROCESS POWERHOUSE

The Ovivo Carrousel Process Team, which consists of decades of biological wastewater treatment plant design and innovation, has provided expertise and design assistance for wastewater treatment plants consisting of all shapes, sizes, and effluent permits.

CAPABILITIES:

  • Detail Design Support
  • Process Calculations
  • Equipment SizingProcess Guarantees
  • Extended Warranties
  • Retrofit Expertise
  • Process Training
  • Equipment Startup
  • Ovivo Connect (Asset Management)

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