Perfecting Oxidation Ditch Technology

Tri-Oval Oxidation Ditch System

The Tri-Oval® Oxidation Ditch System provides superior wastewater treatment process control and design flexibility of the activated sludge digestion process. Couple this with the cost savings benefits of lower construction, easy installation, and low maintenance — you have a winner in wastewater treatment. The system’s dual-function Aire-O>sub>2 Triton aerators/mixers drive fine bubble aeration and mixing to 33 feet deep and allow for full Biological Nutrient Removal (BNR). Rentals are available to keep your plant compliant on a tight timeline.

Ideal for Municipal or Industrial Applications

The Tri-Oval® Oxidation Ditch System is a subsurface complete mix, looped reactor system that is ideal for municipal and industrial wastewater treatment facilities. Typical processes incorporated into the Tri-Oval® Oxidation Ditch System design can include conventional activated sludge, advanced secondary sludge treatment, nitrification/denitrification, biological nutrient removal of nitrogen and phosphorus, and aerobic sludge digestion.

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Product Highlights

  • Simple, reliable, quiet operation
  • Unlimited process control — easy to automate process control that separates the aeration from the mixing with automatic control of aeration using DO and/or ORP feedback
  • Environmentally Friendly — Mixing and aeration of wastewater is subsurface which means no splashing, aerosoling, and very little noise
  • Design Flexibility — 1, 2, or 3 ring systems allow for a variety of design options to customize the system to your wastewater treatment needs
  • Significant construction savings — costly and complex concrete elements are eliminated (aerator structural supports, drain sumps, splash walls, fillets, covers, etc.)
  • Simple to operate & maintain — routine maintenance is quick and easy. Up to five-year Triton aerator mechanical warranty, depending on application.
  • Energy savings — power dispersion to multiple Triton units distributed evenly around the ditch provides the “turn-down capability” to turn off individual blowers or entire units to match the plant’s influent load and flow fluctuations, reduces energy consumption, and increases process control
  • Small footprint — fine bubble subsurface mixing to depths of 33 feet (10 meters)