FRP Scrubbers are used for scrubbing fluids. Spray dryer absorbers are also called semi-dry scrubbers or spray dryers. Although perhaps less efficient wet scrubbers can remove both gases and particulates. It used water and alkaline sprays over scrubbers of steel and timber in flue ducts. Growers frequently use carbon scrubbers and ventilation to control odors. This includes the dusting tower, cooling pipes, scrubbers, drying tower, arsenic purifier and testing box. Dust collectors that use liquid are known as wet scrubbers. Use of scrubbers or adsorption resins to remove explosive gases before release are also common. In such scrubbers, the bacteria scrub the pollutant. Wet scrubbers are used to control these emissions. Typical applications include the construction of gas scrubbers, reactors, containment vessels, and piping. The operating characteristics of venturi scrubbers are listed in Table 1. Wet scrubbers that use liquid are commonly known as wet scrubbers. Waste water from scrubbers must subsequently pass through a waste water treatment plant. Removal is accomplished by installing scrubbers.