Maintaining odor-free and corrosion-resistant wastewater systems is a challenge for municipalities and industrial facilities. The Force Main Treatment system uses ozone and oxygen to reduce anaerobic sulfate-reducing bacteria (SRB) and control hydrogen sulfide (H₂S) at the source, improving water quality while lowering operating costs.
How It Works
Oxygen and ozone gas are introduced directly into pressurized force mains and lift stations using a turnkey, ready-to-use system:
- Oxygen Generation: Produced on-site from ambient air using pressure swing adsorption (PSA) technology.
- Ozone Generation: Created from pressurized oxygen using a corona discharge ozone generator.
- Injection Method: Ozone and oxygen are bubbled into lift-station basins or injected into pressurized force mains, dissolving efficiently into wastewater.
All that is required is electrical power—no additional chemicals are needed. Systems can be installed in a pre-fab enclosure or an existing on-site building. Turnkey equipment ensures safe, reliable operation.
Benefits of Ozone and Oxygen Treatment
- Eliminate or reduce odor at the source and downstream vents
- Reduce H₂S and SRBs, lowering both odor and corrosion
- Lower chemical usage, reducing ongoing operational costs
- Improve wastewater quality, including reduced color
- Highly reactive and soluble, allowing ozone to dissolve quickly into wastewater without extra mechanical mixing
The Source of Odor
Municipal wastewater odors are primarily caused by hydrogen sulfide (H₂S) and sulfate-reducing bacteria (SRB). Other contributors include ammonia, mercaptans, and organic compounds.
Odors are strongest in low-oxygen (anaerobic) environments, where SRBs thrive. These bacteria produce sulfides that are toxic, corrosive, and malodorous.
Traditional chemical treatments either mask odors or temporarily alter bacterial metabolism, but they do not eliminate SRBs, leading to recurring odor and corrosion issues. Chemicals also incur high recurring costs.
The Ozone/Oxygen Solution
Introducing oxygen creates an aerobic environment, stopping the growth of odor- and corrosion-causing bacteria. Ozone provides a powerful oxidation effect, eliminating bacteria and neutralizing odor-causing compounds.
- Oxygen increases dissolved oxygen levels, supporting aerobic conditions.
- Ozone dissolves readily into water and reacts with contaminants more effectively than oxygen alone.
- After oxidation, ozone reverts to oxygen (O₂), providing additional dissolved oxygen for continued suppression of anaerobic bacteria.
Ozone and oxygen together create a “1 + 2 punch”: bacterial elimination, odor neutralization, and corrosion reduction—all without chemicals.
A Green Solution
The ozone/oxygen force main treatment system is eco-friendly:
- Ozone and oxygen are generated from ambient air and electricity
- No chemicals are required
- Reduces environmental impact while improving safety, odor control, and water quality
Force main treatment with ozone and oxygen provides a cost-effective, sustainable, and highly effective solution for wastewater odor and corrosion challenges. By addressing the problem at its source, facilities can enjoy safer, cleaner, and longer-lasting infrastructure.
You can find more information here: https://www.oxidationtech.com/applications/water-treatment/force-main-ozone-oxygen-injection.html
