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Which is the most frequently used impeller in the fermentation industry regarded as 6- flat-blade disc-mounted turbine?

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Which is the most frequently used impeller in the fermentation industry regarded as 6- flat-blade disc-mounted turbine?

(a) Propeller turbine

(b) Rushton turbine

(c) Bladeless turbine

(d) Screw turbine

This question was addressed to me during an interview.

Query is from Mixing topic in section Fluid Flow and Mixing of Bioprocess Engineering

1 Answer

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Correct answer is (b) Rushton turbine

To elaborate: The Rushton turbine is a radial flow impeller used for many mixing applications (commonly for gas dispersion applications). The design is based on a flat disk with vertical flat blades vertically mounted.

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