Which of the following sparger is most suitable for agitated fermenters?(a) Perforated sparger(b) Orifice sparger(c) Nozzle sparger(d) Porous spargerThis question was posed to me in my homework.My question is taken from Practical Considerations For Bioreactor Construction in portion Reactor Engineering of Bioprocess Engineering

Which of the following sparger is most suitable for agitated fermenter

1.	Which of the following sparger is most suitable for agitated fermenters?(a) Perforated sparger(b) Orifice sparger(c) Nozzle sparger(d) Porous spargerThis question was posed to me in my homework.My question is taken from Practical Considerations For Bioreactor Construction in portion Reactor Engineering of Bioprocess Engineering
Answer» The correct answer is (c) Nozzle sparger To explain I WOULD say: Nozzle spargers are used in many agitated FERMENTERS from laboratory to production scale. These spargers consist of a SINGLE open or partially-closed pipe providing a stream of air bubbles; advantages compared with other sparger designs include low resistance to GAS flow and small RISK of blockage.

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