Ozone for Water Reuse

Water reuse has become more crucial than ever due to extended droughts, catastrophic weather patterns and climate change.

Disinfection & AOP

For disinfection and advanced oxidation processes (AOP) with ozone, a sidestream injection system with an in-line Pipeline Flash Reactor™ (PFR) has been widely adopted as an alternative to fine bubble diffusers due to advantages that include:

  • Smaller footprint
  • Higher mass transfer
  • Greater turndown capability
  • Stable residual
  • Little to no bromate formation

High-dosage Ozone Systems

But today’s high-dosage ozone systems—applying doses from 7 to 30 mg/l—place extraordinary energy and mixing demands on ozone mass transfer systems. Mazzei has risen to the challenge and developed the new Pipeline Flash Reactor PLUS (PFR+) that addresses the specific, real-world obstacles to the transfer of ozone in state-of-the-art, SCADA-controlled systems.

Our new, patented PFR+ mixing system combines precisely engineered:

  • Flow conditioning vanes
  • Mass Transfer Multiplier™ (MTM) mixing nozzles
  • Post-injection blending grid

The precise combination, location, and orientation of each PFR+ element—developed and validated with computational fluid dynamics (CFD) analyses—allows water treatment systems to handle higher rates of ozone at higher turndowns and in low-velocity situations. CFD modeling also allows Mazzei to identify optimum locations for ozone monitoring sensors to allow precise system control.

By folding, blending, and mixing without obstructing the flow, the PFR+ facilitates thorough contacting at a wide range of flow rates and velocities without creating a significant pressure drop through the system. The result is a mixing design that makes more efficient use of ozone—reducing excess ozone production along with the energy and oxygen costs associated with it—while also minimizing energy demand.

Performance Data & Drawings

Performance Data & Drawings

Find performance data and/or drawings on many Mazzei products including our venturi injectors.

Data & Drawings
Technical Assistance

Technical Assistance

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Knowledge Center

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