1. Stealth Method
Deodorization Principle: Utilizing a stronger aromatic scent to blend with the odor, effectively masking the smell of the odor, making it more acceptable to humans.
Application Scope: Suitable for situations requiring immediate and temporary elimination of low-concentration malodorous gas impacts, with an odor intensity of approximately 2.5, and from unorganized emission sources.
Advantages: Rapidly eliminates odorous impact, high flexibility, and low cost.
Drawback: The malodorous components of the odor have not been removed.

2. Dilution Diffusion Method
Deodorization Principle: Utilizing a stronger aromatic scent to blend with the odor, masking it so that it becomes acceptable to the human sense of smell.
Application Scope: Suitable for situations requiring immediate and temporary elimination of low-concentration malodorous gas impacts, with an odor intensity of approximately 2.5, and from unorganized emission sources.
Advantages: Rapid elimination of malodorous impact, high flexibility, and low cost.
Flaw: The malodorous components have not been removed.

3. Thermal Combustion Method and Catalytic Combustion Method
Odor Removal Principle: Under high temperatures, the malodorous substances are fully mixed with fuel gas, achieving complete combustion.
Application Scope: Suitable for handling high-concentration, low-volume flammable gases.
Advantages: High purification efficiency, with odorous substances being completely oxidized and decomposed.
Disadvantages: Equipment prone to corrosion, high fuel consumption, high processing costs, and prone to secondary pollution.

4. Water Absorption Method
The Deodorization Principle: Utilizing the property that certain substances in the odor are easily soluble in water, the odor components are directly contacted with water, thereby dissolving in it to achieve the deodorization goal.
Applicable Scope: Malodorous gases from water-soluble, organized emission sources.
Advantages: Simple process, easy management, low operation costs; generates secondary pollution, requires washing fluid treatment.
Drawbacks: Low purification efficiency; should be used in combination with other technologies. Poor treatment effects on thiols, fatty acids, etc.


5. Liquid Absorption Method
Odor Elimination Principle: Utilizes the characteristic of chemical reactions between certain substances in the odor and the medication to remove specific odor components.
Application Range: Suitable for treating large volumes of odor at high concentrations.
Advantages: Capable of specifically addressing certain odor components, with a mature process.
Flaws: Inefficient purification, consumption of absorbents, and prone to secondary contamination.

6. Adsorption Method
Odor Elimination Principle: Utilizes the adsorption function of adsorbents to transfer malodorous substances from the gas phase to the solid phase.
Application Range: Suitable for treating malodorous gases with low concentration and high purification requirements.
Advantages: High purification efficiency, capable of handling multiple-component malodorous gases.
Drawbacks: The adsorbent is expensive, regeneration is difficult, and the treated malodorous gas requires a lower temperature and dust content.