Ozone is the strongest, most economical commercially available oxidant known to mankind. One of Ozone’s first
commercial uses after it was discovered in the 1870's was to control odors in a slaughterhouse in Nice, France.
Since that time, Ozone systems have been used for hundreds, if
not thousands, of commercial purposes. From water treatment to
commercial bleaching, to dye removal to disinfection and
removal of toxic chemicals from water streams, the oxidizing
power of Ozone is an environmentally-sound solution in a broad
range of industries.
Ozone is an effective odor control agent because it is in a class
of chemicals called “oxidants.” Fire, for example, is an oxidant.
Fire and Ozone perform the same basic function. To reduce
substances to their base chemical components.
In hog and poultry operations, many of the “penetrating” odors
are caused by the combinations of various gases. Many of these substances, in isolation, are not odorous. It is when
they combine that they become “penetrating” or truly offensive. Ozone is used to disrupt this process by breaking
down these chemicals into their base substances. Most of these odorous substances can be found within the sulfides,
mercaptans and amine groups. By breaking the bonds of these chemicals through the oxidative process, the odors
Masking Agents and Chemical Scrubbers
Masking agents attempt to alter odors by adding a substance to the odorous gases. However, without a basic
disruption of the odor control chemical bonding, the only thing masking agents do is to alter the odor, not remove it.
To truly “destroy” odors, an oxidant must be applied. Usually Oxidants are caustic chemicals that are used in
conventional “scrubbing” plants that spray chlorinated water through the air stream to “scrub” the chemicals from the
airstream and break them down in the water. Besides the huge capital expenditures, these plants contribute to water
pollution and environmental compliance problems.
The Ozone Solution
Envron has developed odor control systems that can be safely and effectively applied inside hog, poultry, composting
operations and others. Recent testing by the University of British Columbia in conjunction with the British Columbia
Ministry of Agriculture through the use of an odor panel has found that Ozone will completely eliminate composting
odors. As well, Envron’s work with hog barns and poultry operations shows that Ozone will eliminate even the most
penetrating hog barn odors.
Envron’s Ozone systems employ state of the art Corona Discharge Ozone Generators combined with Oxygen
Concentrators. These systems are low maintenance, trouble-free systems that provide the required dosages to
eliminate the most offensive odors. They can also be operated in adverse environmental conditions (check with us
before installation). These systems can be combined with Ozone sensors to keep Ozone levels below Occupational
Health and Safety levels (usually .05 ppm for an eight hour exposure) in a populated workplace. If odor control is
required in ventilation systems (ie. no human exposure), Ozone levels can be adjusted according to the level of odor
Ozone in air is also disinfectant. Recent testing with Envron’s systems at the University of Saskatchewan, Poultry
Sciences Division, has shown that Ozonation at below Occupational Health and Safety limits reduced airborne
bacteria levels by 44%. And this was in a warm, populated, well-ventilated poultry barn operating in the summer.