Molasses, the byproduct of sugar making, needs treatment before discharging because of sugar inside. It can be used by yeast to produce biomass (single cell protein) in a continuous fermentation process. The yeast follows Monod equation of growth with max = 0.5 h -1 and Ks = 2 g/L. a) In a steady state chemostat with no cell death, if the sugar concentration in the feed is 50 g/L, the yield 1.0 g cells / g sugar, what dilution rate D gives the maximum volumetric productivity? b) For a 100 m3 bioreactor operated under condition a), if cooling water enters at 10 0C and exits at 20 0C, what is the flow rate? c) If 2 chemostats with same volume, Vc = 2000 L, are connected in series, determine the flow rate to reduce the sugar concentration to less than 1 g/L.