Flue gas treatment refers to the processes used to remove harmful pollutants from the exhaust gases produced by industrial facilities, power plants, and other combustion sources. This treatment is essential for reducing emissions of sulfur dioxide, nitrogen oxides, and particulate matter, which can harm the environment and human health. Common methods of flue gas treatment include scrubbing, where gases are washed with a liquid to remove contaminants, and catalytic converters, which use chemical reactions to convert harmful substances into less harmful ones. These technologies help ensure compliance with environmental regulations and promote cleaner air.