Metz Farms Ozone Installation
Odor Control with Ozone

The Problem

• 10,000-head hog facility in St. Marie de Kent, New Brunswick Canada
• The building is 110,000 square feet (2.5 acres!).
• Odor from this building could be detected up to 3.5 Miles (6 km) away.
• Odor complaints were common. Local communities were attempting to shut down this facility due to the offensive odors.
• Odor control options were limited as this facility was already constructed and in operation.
• As residential communities have grown closer to the farm over time, odor complaints have increased.

Ozone Solutions Used

• Ozone gas was used within the building at low levels to maintain an odor free environment.
• Low ozone levels (0.05 - 0.1 PPM) were maintained in the building at all times.
• The building was made up of 15 individual rooms. The ozone level in each room was controlled independently.
• One 160 g/hr ozone generation system was used to control odor.
• Manual flow meters controlled ozone flow to each room.
• Ozone concentration could be adjusted with adjustable-output ozone generators.
• Ozone generation system was placed within a dedicated, environmentally-controlled room.

Results

• Odor emissions from the active Hog facility were reduced by over 75%.
• Odor emissions were reduced sufficiently to allow the continued operation of this agricultural facility.
• After installation of the ozone system odor was not detected beyond the property line (300 ft or less from the building). A complete success!

Other Benefits

Commonly, when installing ozone systems we are presented with many additional and sometimes unanticipated benefits.

• Workers were presented with a better work environment (Happier employees!).
• Feed consumption per hog was reduced.
• Average daily weight gain per hog was increased.
• A drop in mortality rate was realized.
• An overall higher health herd was achieved, resulting in a higher return per hog space.
• Increased general air-quality due to less dust particles in the air.