Heavy metal removal system for industrial flue gas
Effectively remove harmful heavy metals from industrial emissions while ensuring compliance and enhancing environmental sustainability with this advanced flue gas purification system.

The Heavy Metal Removal System from GEA is designed for industries facing hazardous pollution challenges, offering a comprehensive solution to remove contaminants such as mercury from industrial emissions. Utilizing a combination of processes, including wet electrostatic precipitators, spray drying absorption, and candle filters, this system effectively separates, oxidizes, and precipitates heavy metals to deliver clean industrial gases and mercury-free products. Its applications span metal refining, chemical processing, hazardous waste treatment, and more, ensuring output of clean pulp fibers, decontaminated pharmaceutical waste, and energy-efficient sulfuric acid. Capable of continuous, high-scale operations, the system integrates seamlessly into existing production lines with automation and PLC controls, optimizing energy use and reducing operational costs. Constructed with corrosion-resistant materials, it is engineered for longevity in demanding environments, while GEA provides tailored engineering support and maintenance solutions to meet specific operational needs.
Benefits
- Ensures environmental compliance by effectively removing heavy metals and pollutants from emissions.
- Enhances operational efficiency with seamless integration into continuous production lines.
- Lowers energy costs through optimized processing technologies, including electrostatic precipitation.
- Reduces maintenance downtime with durable, corrosion-resistant materials and automated cleaning systems.
- Versatile application across multiple industries, supporting diverse pollution control needs.
- Applications
- Chemical processing,Metal refining,Ceramics,Medical waste incineration,Pulp and paper,Environment,Food and beverage,Energy sector,Sulfuric acid production,Pharmaceutical manufacturing,Hazardous waste treatment
- End products
- Mercury-free metal ingots,Clean pulp fibers,Pure chemical reagents,High-quality food-grade raw materials,Energy-efficient sulfuric acid,Safe medical waste by-products,Environment-friendly ceramics,Decontaminated pharmaceutical waste,Clean industrial gases,Pollution-free energy outcomes
- Steps before
- Flue gas treatment preparation,Gas stream pre-treatment,Slurry preparation,Reagent preparation
- Steps after
- Emission control,Residue management,Waste storage,Gas release,Dry powder handling
- Input ingredients
- mercury vapour,mercuric chloride solution,flue gas,sub-micron particulate,aerosols,condensed volatile organic compounds,hot,untreated flue gas,activated carbon,reagents,absorbents
- Output ingredients
- mercurous chloride precipitate,cleaned flue gas,fine powder,suspended solids,low dust emissions,reaction products
- Process types
- Calomel process / WESP / SDA / Candle filters
- Mercury removal
- Calomel process / SDA / Candle filters
- Particulate removal
- WESP / Candle filters
- Energy efficiency
- Minimized energy cost (WESP)
- Material resistance
- Chemically inert and corrosion resistant (Candle filters)
- Operating temperature
- High thermal stability (Candle filters)
- Particle size removal
- Sub-micron (WESP)
- Automation
- Online cleaning (Candle filters)
- Recycling capabilities
- Partial recycling (SDA process)
- Gas Treatment
- Sub-micron particulate,aerosol,fumes (WESP)
- Gas Distribution Control
- Precise control (SDA process)
- Temperature stability
- Chemically inert and thermally stable (Candle filters)
- Single or multi-compartment
- Housing for large volumetric flow rates (Candle filters)
- Side stream processing
- Primary and secondary settling (Calomel process)
- Reagents/Absorbents Injection
- Used in control of gaseous emissions (Candle filters)
- Working mechanism
- Calomel process,WESP,SDA
- Integrated steps
- Gas treatment,particulate removal
- Batch vs. continuous operation
- Continuous
- Energy efficiency
- Low energy consumption
- Automation level
- Automated control
- Density/particle size
- 0.5–2.5 g/cm³ / 50–1000 µm
- Agglomeration risk
- Low risk with spray drying absorption
- Tank shape
- Conical
- Filter type
- Ceramic
- Filter element cleaning
- Compressed air jet pulses
- Filter housing
- Single or multi-compartment
- Discharge method
- Settling and storage drums
- Reactor type
- Bubble column
- Control panel type
- PLC/SCADA
- Integration possibilities
- Gas stream integration
- Filter customization
- Ceramic elements with embedded catalyst matrix
- Reagent injection customization
- Activated carbon,zinc dust
- Drum storage customization
- Storage drums for processed solids
- Market info
- GEA is known for its expertise in engineering innovative and sustainable equipment and solutions, focusing on sectors such as food, beverages, pharmaceuticals, and energy, with a reputation for quality, efficiency, and advanced technological applications in industrial processing.