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. 2019 Feb 20;13(6):1589–1601. doi: 10.1038/s41396-019-0371-6

Table 1.

Model nomenclature and parameter values

Symbol Parameter Units Value Source Model sensitivity
μ max Maximum growth rate d−1 Modeled parameter
μ max,eco,min Lowest maximum growth rate allowed d−1 0.2 50 Sensitivea
μ max,eco,max Highest maximum growth rate allowed d−1 9.8 50 Sensitivea
μ max,constrain Constraining growth rate used for modeling d−1 5 Set to range center Sensitivea
b e Endogenous decay d−1 Modeled Parameter
b e,eco,min Lowest endogenous decay rate allowed d−1 0.02 47, 48 Sensitivea
b e,eco,max Highest endogenous decay rate allowed d−1 0.2 49 Sensitivea
b e,constrain Constraining endogenous decay used for modeling d−1 0.11 Set to range center Sensitivea
K s Half-saturation constant mg/L 50 Typical value Insensitiveb
Y Yield mg X/mg S 0.3 Typical value Insensitive
S in Influent substrate concentration mg/L 250 Typical value Insensitive
S Substrate concentration in the reactor mg/L Modeled parameter
X Biomass concentration mg/L Modeled parameter
X settle Settled biomass concentration mg/L Modeled parameter
V full Full volume of reactor L 12 Experimental setup
V t Time variable volume of reactor L Modeled Parameter
V mixed drain Mixed volume removed, dependent on MRT L Variablec Experimental setup
V clarified drain Clarified volume removed, 4 L-Vmixed drain L Variablec Experimental setup
t cycle Total cycle time h 4 Experimental setup
t react React time h 3 Experimental setup
t settle Settle time h 0.5 Experimental setup
t mixed drain Time to drain the mixed volume h 0.167 Experimental setup
t clarified drain Time to drain the clarified volume h 0.167 Experimental setup
t fill Fill time h 0.333 Experimental setup
Q mixed drain Mixed drain flowrate L/h Vmixed drain/tmixed drain Experimental setup
Q clarified drain Clarified drain flowrate L/h Vclarified drain/tclarified drain Experimental setup
Q in Influent flowrate L/h 12 Experimental setup

aSee Supplemental Figure 15

bSee Supplemental Figure 14

cSee Supplemental Table 1