J. Makinia et Sa. Wells, A general model of the activated sludge reactor with dispersive flow - I. Model development and parameter estimation, WATER RES, 34(16), 2000, pp. 3987-3996
A general dynamic model, including biological processes, hydraulics, oxygen
transfer and temperature. was developed for the activated sludge reactor.
Transport of wastewater constituents was described by the 1-D advection-dis
persion equation with a source term written principally according to the Ac
tivated Sludge Model No. 1 (ASM1). Oxygen transfer was strongly related to
the air flowrate and this feature was included in the oxygen mass balance.
The temperature model was based on a heat balance of the reactor. Experimen
tal methods for parameter estimation were demonstrated. The dispersion coef
ficient and the oxygen transfer coefficient were estimated from tracer stud
ies and off-gas measurements, respectively. Values of the kinetic and stoic
hiometric coefficients estimated from batch experiments were generally foun
d to agree with the default values used in the ASM1. (C) 2000 Elsevier Scie
nce Ltd. All rights reserved.