Comparison of Rubber Waste Gas Treatment Solutions

1. Mainstream Technologies

1.1 UV Photolysis Catalysis

• Principle: Nano-TiO₂ photocatalyst, activated by UV (＜300nm), produces oxidizing radicals to decompose organics into H₂O and CO₂.

• Pros/Cons: Long-lasting, low maintenance, non-toxic TiO₂; Not suitable for treating waste gas containing heavy metals.

1.2 Low-Temperature Plasma

• Principle: High-energy plasma particles decompose pollutants rapidly.

• Pros/Cons: Treats VOCs, odors, dust; limited effect on high-concentration gas.

1.3 Activated Carbon Adsorption-Desorption

• Principle: Activated carbon adsorbs gas; saturated carbon is regenerated, and desorbed gas is catalytically burned. Waste carbon is disposed of as hazardous waste.

• Pros: High filtration speed, large capacity, stable operation.

2. Scheme Selection Principles

1. Reliable, cost-effective, low-energy, small-footprint processes.

2. Compliance with national environmental standards.

3. Easy operation by part-time staff.

4. No secondary pollution from residue/wastewater.

5. Compact, functional treatment station layout.

3. Key Cases

• Siemens (rubber waste gas: low-temperature plasma).

• Shanghai Yanfeng (automotive parts: plastic gas/dust treatment).

• Jiangsu Ink Enterprise (ink VOCs: UV photolysis).

• Nanjing Waste Incineration Plant (550°C flue gas).