Wastewater Treatment

Mazzei has been providing cost-effective wastewater solutions for both the municipal and industrial markets for more than 30 years. Today, Mazzei uses computational fluid dynamics (CFD) modeling to minimize dead zones and short-circuiting, and assure optimal mixing and mass transfer in a system. Whether controlling odor in tanks, basins and lagoons; reducing high biochemical oxygen demand (BOD) levels or increasing dissolved oxygen in even the most complex system, Mazzei delivers results.

The Mazzei venturi wastewater aeration system starts with sidestream injection and then is followed by a basin nozzle manifold or Pipeline Flash Reactor™ to provide additional mixing and contacting. This system is more efficient than jet aeration as it does not use an air blower/compressor to add ambient air (O2) to the wastewater. Whether retrofitting a facility or designing a new installation, Mazzei technology is utilized in many wastewater applications  including aeration, aeration for sewer mains and lift stations, ozone disinfection, and the specific ones listed below.


  • Activated sludge aeration
  • Aeration for odor control
  • Aerobic sludge digestion
  • Ozone for disinfection
  • Post-treatment aeration
  • Pure oxygen injection
  • Retrofit aeration
  • Sewer main aeration
  • Produced water treatment for oil and gas
  • Processed water treatment for pulp and paper
  • Water treatment for marine applications

Contact Mazzei and let one of our sales engineers help find the solution to your challenge.

Performance Data & Drawings

Performance Data & Drawings

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

Technical Assistance

Technical Assistance

Answers to your questions… specifications, installation tips and technical bulletins to assist you with your wastewater project, plus find Mazzei documentation.

Knowledge Center

Knowledge Center

Looking for more info about Mazzei products?

Take a look at articles, technical papers, case studies and brochures for the wastewater market, plus find videos and animations.