name	unit	description
vol	ml	Total volume (main tank + sub-tank)
fS	-	Fraction of total volume assigned to sub-tank
qM	ml/hour	External in-/outflow to/from main tank
qS	ml/hour	Flow rate in sub-tank branch
bX	mg/ml	Concentration of bacteria in external inflow to main tank
sX	mg/ml	Concentration of substrate in external inflow to main tank
mu	1/hour	Growth rate constant of bacteria
yield	mg/mg	Yield coef. (bacteria produced per amount of substrate)
half	mg/ml	Half saturation conc. of sustrate for bacteria growth
