SOxpuhdistusta

SOxpuhdistus, also known as sulfur dioxide (SO2) scrubbing, is a process used to remove sulfur dioxide from industrial exhaust gases. This is typically done to reduce the environmental impact of industrial activities, such as coal-fired power plants and smelters, which emit significant amounts of SO2. SO2 is a major contributor to acid rain, which can harm ecosystems and damage infrastructure. The primary methods of SOxpuhdistus include wet scrubbing and dry scrubbing.

Wet scrubbing involves spraying the exhaust gases with a liquid, such as lime or limestone slurry, which reacts with the SO2 to form solid particles that can be removed by settling or filtration. This method is effective but can produce a significant amount of wastewater that requires further treatment.

Dry scrubbing, on the other hand, uses a dry sorbent, such as activated carbon or calcium-based materials, to absorb the SO2. This method is generally less water-intensive than wet scrubbing but may require more energy for the regeneration of the sorbent.

Both methods aim to reduce SO2 emissions to meet regulatory standards and minimize the environmental impact of industrial processes. The choice of method depends on various factors, including the specific industrial application, the concentration of SO2 in the exhaust gases, and the available technology and infrastructure.