6.2.1 The chemostat Si<qs,mx X max 101 0.4 r100 DOT DOT- X 0.2 (3=51m5)101 0 0 Lo 0 10 20 30 40 Time (h) Chemostat start Reduced medium Increased flow rate inlet conc (F/V) of limiting substrate (Si) Start-up of a chemostat and control of growth rate and biomass concentration.Si q , max X max V F  s 6.2.1 The chemostat