ABSTRACT

The jet venturi fume scrubber is a versatile tool for many dust and gas applications. The principle of operation involves a jet effect created by a water spray nozzle. The water spray nozzle is located on the top of the jet scrubber and creates a hollow cone-shaped spray. Normally, the scrubber would be set up with a recirculating loop. Several theories have been promoted for studying the gas absorption capacity of the jet venturi scrubber, including the two-film theory, the penetration theory model, and the surface renewal model. The jet scrubber is used to eliminate the maintenance problems often encountered with these applications, since it has no parts and can readily handle sticky materials. Modifications of the standard jet scrubber having smaller throat diameters and using special-design spray nozzles for liquid pressures of 120 to 170 psig are often used on difficult dust or smoke applications.