Aeration/ Oxygen Injection Into Sewer Mains & Lift Stations

Highly Energy Efficient Aeration/Oxygenation

Virtually Silent Operation

How it Works:

1. Wastewater in sewer mains can become septic due to low flow rates or long distantce runs. Odors and highly toxic and corrosive Hydrogen Sulfide gas are some of the problems created from the septic conditions.

2. The addition of oxygen to sewer mains can prevent or reverse septic conditions by fostering the growth of less objectionable aerobic microorganisms.

3. Hydrogen Sulfide is oxidized to relatively benign and easy to handle elemental sulfur:
   2H₂S + 3O₂ 2SO₂ + 2H₂O and 16H₂S + 8SO₂ 3S₈+16H₂O

4. The Mazzei AirJection^® Process is ideal for introducing air or oxygen into lift stations and sewer mains.

5. A sidestream of wastewater is pumped directly from the sewer main (or from a basin with a lift station pump) through one or more Mazzei^® Injector(s) which aspirate either air or concentrated oxygen without the need for blowers or compressors. The concentrated oxygen source can be LOX or a PSA type concentrator.

6. The resulting wastewater and air/oxygen mixture is then discharged back into the sewer main through Mazzei^® MTM mixing nozzles, thoroughly mixing the sidestream with the main flow.

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Click to see more information about each application below:

Sewer Main Aeration	Activated Sludge Aeration	Post Aeration
Odor Control	Pure Oxygen Injection	Sludge Digestion
		Ozone Disinfection

Look for The Mazzei^® Design . . . Because It's What's Inside That Matters!