4 typical questions about odour

Odour nuisance, it is a complex problem. Our Desotec engineers have been working with 1000+ companies in the last 30 years to solve odour issues and therefore we have gathered the 4 most common questions about odour in this article.  

What causes odour?

Odour can be caused by both organic and inorganic components. Complaints are typically connected to components with a low odour threshold such as H2S and styrene. Especially companies active in the waste industry or manufacturers of fragrances, food products, and composites are often confronted with these topics.


What is the odour threshold and why is this important?

The odour threshold is the lowest concentration of a component that can be perceived by the human nose. This is different for every component. Furthermore, odour is not always regulated for companies. As a result, it is possible that companies comply with their emission limits but still cause odour nuisance. Knowledge of odour thresholds can help to identify and treat potentially bothersome flows in order to avoid conflicts with neighbours.

Odour treshold


How can activated carbon help me with odour nuisance?

The solution for a specific case of odour nuisance depends on the components that cause the issues. For removal of inorganic components such as H2S or NH3, impregnated carbon will be required. Odour problems because of organic solvents can be solved with standard activated carbon types. The components will adsorb on the activated carbon and thus remove the odour.


What if I don’t know what causes the odour nuisance?

If the composition of the airflow is not known, it is possible to organize a measurement campaign with partners. Alternatively, it is possible to install a pilot installation as a proof of concept. During the tests, different activated carbon types can be tested, separately or in layers, to identify the best solution.


Other question?

Don't hesitate to reach out to our engineers.