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Modeling of activated sludge transient behavior induced by regulation of carbon and nitrogen metabolism
Author(s) -
Lavallée B.,
Lessard P.,
Vanrolleghem P. A.
Publication year - 2011
Publication title -
biotechnology progress
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.572
H-Index - 129
eISSN - 1520-6033
pISSN - 8756-7938
DOI - 10.1002/btpr.683
Subject(s) - transient (computer programming) , biomass (ecology) , nitrogen , chemistry , carbon fibers , biological system , activated sludge , nitrogen cycle , metabolism , transient response , biochemical engineering , biophysics , environmental science , biochemistry , computer science , environmental engineering , biology , ecology , engineering , organic chemistry , sewage treatment , algorithm , composite number , electrical engineering , operating system
An experimental protocol to evaluate the structured biomass model proposed by Lavallée (Lavallée, Lessard, and Vanrolleghem, J Environ Eng Sci 2005;4:517–532) is presented. The protocol was devised to induce transient behavior and characterize the evolution of several internal biomass components. The proposed model is based on biochemical principles, and was fitted to the collected data. In these experiments, it was observed that filling the storage capacity of cells leads to special transient behavior, including a temporarily reduced metabolic activity. The model‐based interpretation of the results showed that the observed transient behavior can be explained by cross‐regulation of carbon and nitrogen metabolism. Hence, according to an extensive literature review, the cross‐regulation of carbon and nitrogen can be used to model some observed transient behaviors and regulation of the storage process in activated sludge. © 2011 American Institute of Chemical Engineers Biotechnol. Prog., 2011