Slurry removal scrubber cleaning

Scrubbers are pollution control devices, which remove pollutants from gas streams, particularly from the combustion gases produced by facilities such as coal-fired power plants. Scrubbers may use absorbents in slurry or solution form (wet scrubbers), or in powder form (dry scrubbers), with wet scrubbers being more often used. Modern scrubbers can consist of several cleaning steps such as dust separation, sulfur removal, capture of mercury, lead, or other heavy metals, and breakdown of nitrogen oxides. Scrubbers of the future will also need to capture and sequester carbon dioxide. Currently, the most common application of scrubbers is still the removal of sulfur, frequently combined with capture of fly-ash. 

Scrubbers are a form of pollution control technology. They can be used to remove some particulates and/or gases from industrial exhaust streams. Traditionally scrubbers referred to the use of liquid to wash unwanted pollutants from a gas stream. Today it also applies to the injection of a dry reagent or slurry into a dirty exhaust stream to clean out acid gases. Scrubbers are one of the main devices to control gaseous emissions, especially acid gases. 

---