Municipal waste-to-energy plant · East Asia
Dioxin and mercury control on flue gasPowder carbon injected before the baghouse; stack PCDD/F kept below the 0.1 ng TEQ/Nm3 permit limit.
Dioxin Removal · Flue Gas Treatment · Mercury Adsorption
Hazardous and municipal waste incineration produces flue gas loaded with dioxins, furans, mercury and acid gases. Powdered activated carbon injection combined with fabric filtration captures these micro-pollutants reliably, while fixed-bed polishing secures compliance with strict TEQ limits under variable furnace loads.
Discuss Your ProjectIndustry overview
Waste incineration is an important method for harmless disposal of municipal solid waste and industrial waste. However, incineration flue gas contains highly toxic pollutants including dioxins, mercury vapor, heavy metals, VOCs and odorous compounds. Activated carbon injection or fixed carbon bed adsorption has become a mature and reliable technology for deep flue gas purification.
Our high-performance powdered and granular activated carbon is customized for waste incineration exhaust treatment, widely applied in municipal garbage incinerators, hazardous waste incineration facilities and sludge incineration projects.
Powdered activated carbon is injected into high-temperature flue gas duct. Toxic organic molecules and mercury vapor are adsorbed onto carbon surface quickly. The carbon loaded with pollutants is captured together with fly ash by bag filter. For fixed-bed processes, flue gas passes through granular carbon bed, contaminants are trapped inside carbon pores.
Municipal solid waste incineration plants, hazardous waste incineration facilities, sludge incineration stations, industrial waste thermal treatment plants.
Contact our flue gas engineering team to select the suitable activated carbon grade based on flue gas temperature, pollutant concentration and emission requirements.
Common carbon options: Powdered · Pellet · Impregnated Activated Carbon
Product parameters
Recommended starting ranges for flue-gas duty. Final values depend on the gas composition, injection system and the emission limits in your permit.
| Carbon option | Iodine value | Typical size | Suitable conditions | Selection effect |
|---|---|---|---|---|
| Powder carbon (injection grade) | 800–1000 mg/g | 200–325 mesh | Dry injection upstream of baghouse | Captures dioxins and mercury in one step |
| Sulfur-impregnated carbon | 900–1100 mg/g | 4×10 mesh | Mercury polishing on low-dust gas | High mercury uptake at low dose |
| Coal-based extruded carbon | 900–1100 mg/g | 3 mm / 4 mm | Fixed-bed polishing after filtration | Low dust, stable long-cycle bed |
| Honeycomb carbon | 600–900 mg/g | 100×100×100 mm
100×100×50 mm |
Low-dust tail-gas treatment | Very low airflow resistance |
Treatment process
The exact train is confirmed against your flue-gas analysis, operating temperature and the TEQ limits in the discharge permit.
Project cases
Buyer identities are withheld. The examples show representative project briefs and engineering approaches; performance is site-specific.
Powder carbon injected before the baghouse; stack PCDD/F kept below the 0.1 ng TEQ/Nm3 permit limit.
Pellet carbon fixed bed installed downstream of wet scrubbing to meet BREF targets.
Sulfur-impregnated carbon bed selected for stable mercury removal under frequent start-stops.
Frequently asked questions
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Dry injection rates commonly fall between 50 and 150 mg/Nm3, tuned against stack test results. We help you set the starting dose and adjust after the first measurement campaign.
Yes. Sulfur-impregnated grades are available for low-temperature mercury polishing, and we can compare them against standard powder carbon on your gas data.
Fly ash with captured carbon is collected as hazardous waste under local rules. We provide technical data sheets that support your disposal classification.
Share your flue-gas analysis and permit limits. We can arrange bench adsorption tests and a sample batch for on-site injection trials.