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Effect of wall growth on the kinetic modeling of nitrite oxidation in a CSTR
Author(s) -
Dokianakis Spiros N.,
Kornaros Michael,
Lyberatos Gerasimos
Publication year - 2006
Publication title -
biotechnology and bioengineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.136
H-Index - 189
eISSN - 1097-0290
pISSN - 0006-3592
DOI - 10.1002/bit.20758
Subject(s) - continuous stirred tank reactor , nitrite , chemistry , batch reactor , bioreactor , steady state (chemistry) , volumetric flow rate , thermodynamics , catalysis , organic chemistry , nitrate , physics
A simple kinetic model was developed for describing nitrite oxidation by autotrophic aerobic nitrifiers in a continuous stirred tank reactor (CSTR), in which mixed (suspended and attached) growth conditions prevail. The CSTR system was operated under conditions of constant nitrite feed concentration and varying volumetric flow rates. Experimental data from steady‐state conditions in the CSTR system and from batch experiments were used for the determination of the model's kinetic parameters. Model predictions were verified against experimental data obtained under transient operating conditions, when volumetric flow rate and nitrite feed concentration disturbances were imposed on the CSTR. The presented kinetic modeling procedure is quite simple and general and therefore can also be applied to other mixed growth biological systems. © 2005 Wiley Periodicals, Inc.