1. Venturi scrubbers achieve very high collection efficiencies for respirable dust.2. Like a spray tower an ejector venturi scrubber uses a preformed spray. 3. For simultaneous removal of and fly ash, venturi scrubbers can be used. 4. However, in an ejector venturi scrubber only a single nozzle is used instead of many nozzles. 5. Venturi scrubbers have been designed to collect particles at very high collection efficiencies, sometimes exceeding 99 %.6. Gas velocities of 60 to 180 m / s are equivalent to those encountered in a venturi scrubber . 7. "' Figure 4 "'- Rectangular throat venturi scrubber Water sprays help prevent solids buildup. 8. A venturi scrubber consists of three sections : a converging section, a throat section, and a diverging section. 9. In fact, many of the industrial sodium-based throwaway systems are venturi scrubbers originally designed to remove particulate matter. 10. The high inlet gas velocities in a venturi scrubber result in a very short contact time between the liquid and gas phases.
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