Posted by **Emily** on Monday, March 11, 2013 at 1:26am.

A continuously operated 1000 liter CSTR is used for production of biomass from glucose provided by

the feed (feed rate of 100l/h and glucose concentration of 10 g/l). The bacteria show Monod type

growth with a maximal specific growth rate of 0.4/h and an affinity towards glucose of 1.5 g/l. The

biomass yield per substrate consumed is 0.5.

a) What is the specific and absolute production rate of biomass at steady-state condition?

b) At which critical dilution rate is wash out expected?

c) Now a biomass recycling system is included into the setup producing a five times higher cell

concentration than at the reactor outlet. Whatâ€™s the impact on the specific biomass

production rate?

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