Heavy metal removal system for industrial flue gas
In industries like non-ferrous metal production and waste incineration, the release of heavy metals such as mercury and lead in flue gases poses significant environmental and health risks. Effective removal systems are crucial to comply with regulatory standards and minimize pollution.
Remove and recover heavy metals from flue gas
The GEA heavy metal removal system utilizes multiple advanced processes to efficiently eliminate heavy metals from industrial flue gas streams. Key processes include the calomel method, wet electrostatic precipitators (WESP), spray drying absorption (SDA), and candle filters. The calomel process specifically targets mercury, leveraging mercuric chloride to oxidize and precipitate mercury as insoluble mercurous chloride. Wet electrostatic precipitators apply electrostatic forces to capture sub-micron particles and fumes, including metals like lead and arsenic. Spray drying absorption introduces a fine slurry spray into hot gas, converting particles to fine powder which is collected downstream. Candle filters, composed of high-temperature ceramic elements, effectively remove particulates, including dioxins, mercury, and VOCs, without the need for cooling. Each system integrates seamlessly into existing gas cleaning setups, ensuring flexible and robust performance across various industrial applications. Supplied by GEA, these technologies are designed to meet stringent environmental standards while optimizing energy efficiency.
Benefits
- Comprehensive heavy metal removal for flue gas
- Effective mercury reduction with calomel process
- Energy-efficient particle capture with WESP
- Scalable and versatile for various industries
- Minimized maintenance with high reliability