How activated carbon works
Activated carbon is a porous material characterized by a very high specific surface area. Thanks to this structure, it can retain many substances in the gas phase through adsorption, helping reduce odors and airborne pollutants. To ensure effective performance, the filter must be correctly sized. Key factors include the quantity and type of activated carbon used, air velocity through the filter bed, contact time, pollutant concentration, and the possible presence of dust, moisture, or substances that may reduce the effectiveness of the adsorbent material. For this reason, when the extracted air stream also contains particulate matter, it is recommended to install upstream pre-filtration systems to protect the activated carbon and maintain its efficiency for a longer period.
Applications
- Painting and surface treatment processes;
- Chemical and pharmaceutical industries;
- Processes involving solvents, adhesives, resins, and organic substances;
- Cosmetic industry;
- Rubber and plastics industry;
- Waste treatment facilities;
- Air purification systems for odor removal;
- Systems with VOC or organic vapor emissions.
Each application requires a specific technical assessment, as the performance of activated carbon depends on the nature of the pollutants, their concentration, and the characteristics of the air stream to be treated.