Pre-ground SOLVAir® Sodium Bicarbonate and Active Carbon or Lignite Coke for Industrial Waste to Energy Incineration Plant
In the waste management sector, waste-to-energy plants play a crucial role in reducing the volume of industrial waste through combustion. While these plants are effective in treating waste, they emit harmful air pollutants due to the combustion of materials present in the waste, which may include plastics and chemical compounds. The fumes produced include sulfur oxides (SOx), hydrochloric acid (HCl), hydrofluoric acid (HF), dioxins, furans, and heavy metals such as mercury, lead, and cadmium, which poses significant environmental and public health challenges. To control these emissions within legal limits, advanced exhaust gas treatment systems are essential. For this purpose, the combined use of Solvay SOLVAir® pre-ground sodium bicarbonate and activated carbon or lignite coke, with the addition of magnesium lime where necessary, shows promising results.
Solution with Pre Ground SOLVAir® Sodium Bicarbonate plus Active Carbon or Lignite Coke
Specifically, Solvay SOLVAir® pre-ground sodium bicarbonate helps neutralize acids in flue gases, transforming them into solid, stable salts, while activated carbon and lignite coke, with their high adsorption capacity, are extremely effective at capturing heavy metals and other pollutants in flue gases. Practical implementation of this solution involves the controlled injection of these additives via two separate dosers to ensure the necessary precision in releasing the materials. This method achieves high efficiency in flue gas purification, ensuring compliance with current environmental standards.
Magnesium Lime
For certain types of industrial plants, using Magnesium Lime directly in the combustion chamber is particularly advantageous, as it effectively neutralizes acids at low concentrations, thus supporting the neutralization action of bicarbonate. Similar to activated carbon or lignite coke, it has the ability to capture and bind various pollutants, including heavy metals, significantly improving the filtration effect. This makes it an excellent optional additive to combine with bicarbonate and activated carbon or lignite coke.