top of page



Contact chamber 17’L x 8’W x 8’H, roof mounted, for 3,000 CFM exhaust from wastewater treatment plant, using 3 lbs/day ozone.

  • A contact chamber provides a confined enclosure for thoroughly mixing ozone with odors in an oxidation atmosphere that destroys such odors.

  • Contact chambers are sized specifically for each application based on the CFM of foul air flow to  be ozonated.

  • Exterior and interior construction is fiberglass,  with the chamber interior divided by a serpentine arrangement of baffles to  create 20-30 seconds detention time for the chemical oxidation reaction to fully take place.



Ozone is a proven technology, highly effective in controlling hydrogen sulfide and other odors from wastewater treatment facilities, wet wells and lift stations. Instead of exhausting foul air into the environment, causing nuisance odor complaints, the exhaust can be diverted into a contact chamber and mixed with ozone. The resulting chemical oxidation reaction between odor molecules and ozone molecules can completely neutralize the offending odors. For a lift station or wet well, ozone can be delivered into the head space to form an odor neutralizing blanket, or odors can be vented into an external contact chamber for ozonation.


Ozone generators are sized according to the odor load, using a formula based on ppm H2S and CFM of foul air flow to calculate the grams/hour or lbs/day ozone required - no guesswork. Sizes of ozone generators range from 10 grams/hour to 25 lbs/day, closely matching the application requirement. All come with a four (4) year factory warranty.

Lift Station Odor Control

contact chamber small.jpg

Compact design contact chamber for LIFT STATIONS features all stainless steel construction, serpentine baffles for efficient ozone mixing with odors, and 100 CFM blower to pull in foul air. Dimensions are 48”wide x 24”deep x 72”high. This may also be used for WET WELLS.


The capacity of an ozone generator for use with the contact chamber is based on the ppm (mg/L) Hydrogen Sulfide odor load to be oxidized.


The output of the ozone generator can be modulated up/down to equilibrate with the odor load, using an H2S monitor with a 4-20 mA signal.

bottom of page