Polluted gas from an industrial process is introduced into the scrubber system.

The polluted gas is directed into a tower or chamber where a set of spray nozzles are located near the top. These nozzles release a liquid solution (often water or a chemical reagent) in the form of a fine mist or spray.

As the polluted gas travels downward through the tower, it comes into contact with the liquid spray. The pollutants in the gas, such as acidic gases (like sulfur dioxide) or particulate matter, get absorbed or trapped by the liquid droplets.

In some cases, chemical reactions may occur between the pollutants and the liquid solution. For example, in the case of removing sulfur dioxide (SO2), it can react with an alkaline solution to form a less harmful compound like calcium sulfate (CaSO4).

The efficiency of the scrubber in removing pollutants depends on factors such as the type of pollutants, the choice of liquid solution, the size of the droplets, and the contact time between the gas and the liquid.

After passing through the spray and interacting with the liquid, the gas emerges from the bottom of the tower as cleaner, less-polluted gas. This gas can then be released into the atmosphere or subjected to further treatment if necessary.

Spray Tower Scrubbers are particularly effective at removing acidic gases, such as sulfur dioxide (SO2), hydrogen chloride (HCl), and hydrogen fluoride (HF), as well as particulate matter. They are commonly used in industries where these pollutants are a concern, such as coal-fired power plants, chemical processing facilities, and metal smelting operations. The choice of liquid solution and the design of the scrubber system can be tailored to the specific pollutants and process requirements of the facility. Additionally, the captured pollutants in the liquid solution may require further treatment or disposal, depending on environmental regulations and the nature of the pollutants themselves.