The emission of foul industrial odors is often linked to production processes, for example in the paper industry, and oil and gas production, but it can also be due to wastewater treatment (due to the reactions that take place in the different types of treatments used).

Whatever the origin of foul odors, their elimination, or deodorization, is necessary in order to comply with environmental legislation and minimize environmental impact.

Different treatments can be applied for deodorization, the most commonly used ones are:

  • Deodorization using chemical washing: the neutralization of the materials present in the air takes place in chemical reaction towers through the addition of reagents that neutralize different odors.
  • Deodorization using activated carbon: this process is based on the adsorption phenomenon, in which the air stream is passed through a tower of activated carbon in which the contaminants are retained and clean air is released.
  • Biological deodorization: using biofilters (containing a bacterial population specific to each case), through which the air stream is passed for deodorization.


  • For industrial process water
  • Wastewater purification
  • Common in buildings and tanks containing and storing sludge from sewage or wastewater treatment.