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Table 1

Stoichiometric and kinetic parameter values and temperature correction factors used in model

TypeSymbolParameterUnitValue (20°C)Factor θa
Kinetics μH Maximum specific growth rate of heterotrophs d−1 1.072 
Ks Substrate half saturation for heterotrophs mg COD L−1 20 1.03 
fD’ Fraction of biomass contributing to endogenous residue g COD g COD−1 0.08 
bL Aerobic decay coefficient for heterotrophs d−1 0.63 1.03 
kh Hydrolysis rate coefficient d−1 2.2 1.03 
Kx Hydrolysis half saturation coefficient  g COD g VSS−1 0.15 
Stoichiometries YH Yield of heterotrophs on substrate  g COD g VSS−1 0.67 
Partitioning coefficients iVSS,B COD/VSS ratio of biomass g COD g VSS−1 1.42 
iVSS,XI COD/VSS ratio of particulate inert g COD g VSS−1 1.5 
iVSS,Xs COD/VSS ratio of particulate substrate g COD g VSS−1 1.8 
iVSS,XD COD/VSS ratio of biomass debris g COD g VSS−1 1.3 
TypeSymbolParameterUnitValue (20°C)Factor θa
Kinetics μH Maximum specific growth rate of heterotrophs d−1 1.072 
Ks Substrate half saturation for heterotrophs mg COD L−1 20 1.03 
fD’ Fraction of biomass contributing to endogenous residue g COD g COD−1 0.08 
bL Aerobic decay coefficient for heterotrophs d−1 0.63 1.03 
kh Hydrolysis rate coefficient d−1 2.2 1.03 
Kx Hydrolysis half saturation coefficient  g COD g VSS−1 0.15 
Stoichiometries YH Yield of heterotrophs on substrate  g COD g VSS−1 0.67 
Partitioning coefficients iVSS,B COD/VSS ratio of biomass g COD g VSS−1 1.42 
iVSS,XI COD/VSS ratio of particulate inert g COD g VSS−1 1.5 
iVSS,Xs COD/VSS ratio of particulate substrate g COD g VSS−1 1.8 
iVSS,XD COD/VSS ratio of biomass debris g COD g VSS−1 1.3 

aTemperature dependent parameter: P(T) = P20θ(T−20).

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