Vulcanization workshops, which involve the vulcanization process of materials like rubber and plastics, often produce unpleasant odors. These odors are mainly caused by sulfur compounds such as hydrogen sulfide (H₂S), sulfur dioxide (SO₂), carbon disulfide (CS₂), and other volatile organic compounds (VOCs). To improve the working environment and meet environmental protection standards, it is necessary to implement effective deodorization methods in vulcanization workshops.

Biological Treatment Methods:
- Biofiltration: Utilizing biofilters or bio-trickling filters, microorganisms are used to degrade odorous substances through metabolic processes. In a biological scrubber, organic compounds in the air are broken down by microbial action.
Chemical Treatment Methods:
- Chemical Absorption and Neutralization: Chemical absorbents, such as alkaline or acidic solutions, are used to absorb odorous gases. For example, alkaline solutions can be used to absorb acidic gases. Corresponding neutralizing agents can be applied to treat acidic or alkaline gases.
For Unorganized Emission Treatment:
- Deodorization via Space Spraying: In this method, deodorizing agents are diluted 200 times and sprayed as a mist using atomizing devices. These mist droplets spread throughout a designated area, where they adsorb odor molecules in the air, causing the molecular structure of the odor to become unstable. Additionally, the odor molecules adsorbed on the surface of the droplets can react with oxygen in the air. This process converts the odorous molecules into odorless and harmless compounds, such as water and inorganic salts, effectively eliminating odors. It can break down hydrogen sulfide, ammonia, and other VOCs present in the workshop's odors and exhaust gases.
For Organized Emission Treatment:
- Sealing and Collecting Odors for Treatment: Odor-producing equipment or areas are sealed, and a gas collection system is installed to capture and concentrate the odor for treatment. High-temperature oxidation or photocatalytic oxidation can then be used to remove the odors. Additionally, a gas scrubbing tower or exhaust absorption tower may be employed: the odorous air is collected through ducts and directed into the absorption tower. Deodorizing agents are added to the circulating water in the scrubber or absorption tower. After the odorous air is washed with plant-based active liquids from the deodorizing agent, it is discharged, achieving the purification of malodorous gases. The removal rate of sulfur compounds such as hydrogen sulfide, sulfur dioxide, and other VOCs can reach over 97%.
In conclusion, by using a combination of biological, chemical, and physical methods, vulcanization workshops can effectively control and eliminate unpleasant odors, improving both environmental compliance and workplace conditions.