Venturi Wet Scrubbers. Venturi scrubbers are perfect for collecting fine particulate and liquid mists
Packed Tower Wet Scrubbers
Impingement Wet Scrubbers
A scrubber sprays seawater or fresh water mixed with a caustic chemical into the exhaust gas stream in several stages. The pollutant – mainly sulphur dioxide – reacts with the alkaline water, forming sulphuric acid. In the case of an open-loop system, the resulting wash water is discharged back into the sea
Devices called wet scrubbers trap suspended particles by direct contact with a spray of water or other liquid. In effect, a scrubber washes the particulates out of the dirty airstream as they collide with and are entrained by the countless tiny droplets in the spray
Several configurations of wet scrubbers are in use. In a spray-tower scrubber, an upward-flowing airstream is washed by water sprayed downward from a series of nozzles. The water is recirculated after it is sufficiently cleaned to prevent clogging of the nozzles. Spray-tower scrubbers can remove 90 percent of particulates larger than about 8 μm
Electrostatic precipitator
also called electrostatic air cleaner, a device that uses an electric charge to remove certain impurities—either solid particles or liquid droplets—from air or other gases in smokestacks and other flues. The precipitator functions by applying energy only to the particulate matter being collected, without significantly impeding the flow of gases. Originally designed for recovery of valuable industrial-process
Scrubbers can be used to remove some pollutants from industrial exhaust
Scrubber design is directed toward air pollution control through the removal of harmful contaminants from exhaust streams created by power generation, manufacturing, and other industrial applications. Types of scrubber design include wet scrubbers using liquids or slurries, dry scrubbers using powdered chemicals, and combustion equipment that burns off toxic constituents. Units may be regenerative types that recycle the accumulated contaminants or non-regenerative equipment that collects the material for disposal. Pollutants removed may include particulates, fumes, gases, and vapors
