By G. Kayra Oğuz (Chemical and Biomolecular Engineer) | Published by Trigonium İlaç A.Ş. · Last updated: October 6, 2026
H₂S, mercaptans and ammonia escaping from a wastewater treatment plant, a composting site, a dairy farm, a foundry or a petrochemical plant do not stay inside the fence. They turn into complaints from neighbors and warnings from the regulator.
Why is industrial odor more than a comfort problem?
A breach of the Ministry of Environment's odor regulation brings a formal notice and a fine. In some cases it can lead to operations being suspended.
What does the laboratory figure show?
| Measurement | Value |
|---|---|
| SO₂ concentration before contact | 26 ppm/v |
| SO₂ concentration after contact | below 0.01 ppm/v |
| Drop | about 99.96% |
| Test | independent laboratory, on contact |
The figure is taken from the reference Industrial Deodorization: Metalcasting Application Data. It is a contact test of the technology on a single odor compound under laboratory conditions. It is not a promise for a whole site, and it is not an antimicrobial measurement.
The same core technology is documented for TEA/DMEA amine control in a 1996 paper of the American Foundrymen's Society, and for H₂S, mercaptans, SO₂ and NH₃ in the measurement studies of the German Foundry Institute (VDG). The mechanism and its sources are laid out in the technical documentation post.
Which delivery methods are used?
| Method | Typical application |
|---|---|
| Vaporization (dry fog) | Submicron fog with no added water, for odor control in enclosed volumes |
| Atomization (HPS spray) | Mixed with water and fed through high-pressure nozzles, for open-site perimeters |
| Additive injection | Dosed directly into the process stream: asphalt, resin and elastomer lines |
Where is it applied?
- Wastewater treatment plant: H₂S control along the downwind perimeter line.
- Composting site: nebulizing over the open decomposition area.
- Dairy and poultry farms: ammonia control at manure storage.
- Waste transfer station: perimeter fog at doors and openings.
- Foundry: additive on the TEA/DMEA emission line.
- Petrochemical plant: dry fog along the site perimeter.
- Slaughterhouse and meat processing: covers of blood and fat tanks.
- Port and warehouse: nebulizing against fish and oil odor.
What about regulatory compliance?
The components of the ODORGO Industry line are listed in the international chemical inventories TSCA (USA), EINECS (EU), DSL (Canada) and AICS (Australia). For compliance documentation under the environmental odor regulation, keeping an application record is recommended. Each entry holds four things:
- The date of the application.
- The quantity used.
- The area treated.
- A reading from a calibrated olfactometric device (Nasal Ranger or Scentroid).
These records are not a certificate of conformity. Whether the technique is suitable is for the authority to assess.
Which product fits which scale?
The delivery systems above belong to the ODORGO Industry line and are sized for each plant; details are on the industrial odor control page, and you can reach us through the contact page. For rooms inside the facility, ODORGO PRO Odor Eliminator Spray 500 ml is the ready-to-use option. A wider look at sites open to the public is in odor control for restaurants, hotels and businesses.
Take industrial odor at its source
Start from the compound and the point where it escapes, then choose the delivery method. The rest is site testing and record keeping.
Frequently Asked Questions
H₂S odor from a wastewater treatment plant is causing neighbor complaints. What is the fix?
Install a nebulizer or an HPS spray system along the downwind perimeter line. ODORGO acts on H₂S on contact; in an independent laboratory contact test on a single compound, SO₂ fell by about 99.96%.
Is open-area application possible at a composting site?
Yes. It is applied by atomization (HPS) along the perimeter line of the open decomposition area.
Can it be documented for a Ministry of Environment odor inspection?
Records of the application date, quantity and area, plus calibrated olfactometric readings if available, are kept and can be presented at an inspection. They are not a certificate of conformity; the suitability of the technique is for the authority to assess.
How much is used as an additive for TEA/DMEA in a foundry?
Injection into the process stream at ratios of 1:200 to 1:1000 is typical. Site-specific testing is required.
What about daily ammonia from manure storage at dairy and poultry farms?
A nebulizer at the manure storage surface and at the ventilation outlet. Continuous low-dose application keeps the odor under control over the long term.