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Journal article

A Mathematical Model for Dynamic Simulation of Anaerobic Digestion of Complex Substrates: Focusing on Ammonia Inhibition

By Angelidaki, Irini1,2; Ellegaard, L.3; Ahring, Birgitte Kiær4

From

Residual Resource Engineering, Department of Environmental Engineering, Technical University of Denmark1

Department of Environmental Engineering, Technical University of Denmark2

Technical University of Denmark3

Department of Biotechnology, Technical University of Denmark4

A mathematical model for anaerobic degradation of complex organic material, such as manure, has been developed. The model includes an enzymatic hydrolytic step and four bacterial steps and involves 12 chemical compounds. The model focuses on ammonia inhibition and includes a detailed description of pH and temperature characteristics in order to accurately simulate free ammonia concentration.

Free ammonia and acetate constitute the primary modulating factors in the model. The model has been applied for the simulation of digestion of cattle manure in continuously stirred tank reactors (CSTRs), and results compare favorably with experimental data. 0 1993 John Wiley & Sons, Inc. Key words: anaerobic digestion ammonia inhibition manure mathematical model.

Language: English
Year: 1993
Pages: 159-166
ISSN: 00063592 and 10970290
Types: Journal article
DOI: 10.1002/bit.260420203
ORCIDs: Angelidaki, Irini

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