The activated carbon adsorption unit is a modular, drawer-style system designed for the purification of organic waste gases. It utilizes the extensive microporous structure of activated carbon to achieve physical adsorption, making it effective for treating low-concentration, high-volume waste gas streams and odorous emissions. The unit’s housing can be constructed from powder-coated carbon steel, 304/316L stainless steel, or polypropylene (PP). It is filled with either honeycomb or granular/columnar activated carbon, housed in drawer-style filter cartridges that allow for easy installation and replacement. This unit can operate independently or serve as a secondary, high-efficiency purification stage downstream of equipment such as wet scrubbers or UV-based treatment systems; it is a primary solution for the final-stage treatment of industrial waste gases.

Waste gas containing VOCs and odorous substances enters the unit through an inlet and passes uniformly through multiple layers of activated carbon. Organic molecules and odor-causing compounds are captured and trapped within the micropores of the activated carbon, allowing clean, treated air to be discharged through the outlet. Once the activated carbon reaches saturation, the treatment capacity can be restored by sliding out the trays and replacing the activated carbon. The unit itself contains no moving parts, relying on the system’s external draft fan to facilitate the flow of gas.

Treatment of low-concentration, high-volume organic waste gas and malodorous emissions; VOC concentration ≤ 800 mg/m³.
Waste gas temperature ≤ 60°C; avoid operating conditions characterized by high temperatures, high oil-mist content, or high humidity (dehumidification pretreatment is required if humidity > 70%).
Can be integrated in series with equipment such as scrubbing towers, UV-photocatalytic oxidation systems, or RTO (Regenerative Thermal Oxidizer) units.
Treatment capacity: 500–50,000 m³/h; custom solutions for higher flow rates are available upon request.

1) Carbon Steel (Q235)
Advantages: More economical; suitable for dry environments at room temperature.
Disadvantages: Poor corrosion resistance; susceptible to corrosion from acids, alkalis, and moisture.
2) Stainless Steel (304, 316L)
Advantages: High-temperature resistance and excellent corrosion resistance; suitable for high-humidity environments or settings containing weak acids or weak alkalis.
Disadvantages: Higher cost.
3) PP (Polypropylene)
Advantages: Lightweight with strong corrosion resistance (suitable for acidic or alkaline environments).
Disadvantages: Limited high-temperature resistance (typically rated for temperatures ≤60°C).

End-of-pipe exhaust gas purification for industries such as printing, industrial painting/coating, furniture finishing, plastic injection molding, electronics manufacturing, laboratories, pharmaceuticals, food processing, odor control at wastewater treatment plants, and rubber processing.

High purification efficiency: 90–95% VOC removal rate with excellent deodorization performance.
Modular drawer-style design allows for tool-free activated carbon replacement, ensuring simple maintenance.
No internal energy consumption; relies solely on the system’s fan, resulting in low operating costs.
Available in various materials—powder-coated carbon steel, stainless steel, or PP—to suit corrosive operating environments.
Compact footprint; supports floor-standing or overhead (suspended) installation, suitable for both indoor and outdoor use.
Purely physical adsorption process; generates no secondary wastewater.