Modelling of two-stage anaerobic digestion using the IWA Anaerobic Digestion Model No. 1 (ADM1)

Blumensaat, F. and Keller, J. (2005) Modelling of two-stage anaerobic digestion using the IWA Anaerobic Digestion Model No. 1 (ADM1). Water Research, 39 1: 171-183. doi:10.1016/j.watres.2004.07.024

Author Blumensaat, F.
Keller, J.
Title Modelling of two-stage anaerobic digestion using the IWA Anaerobic Digestion Model No. 1 (ADM1)
Journal name Water Research   Check publisher's open access policy
ISSN 0043-1354
Publication date 2005-01-01
Year available 2005
Sub-type Article (original research)
DOI 10.1016/j.watres.2004.07.024
Open Access Status Not yet assessed
Volume 39
Issue 1
Start page 171
End page 183
Total pages 13
Editor Morgens Henze
Place of publication England
Publisher Pergamon-Elsevier Science
Language eng
Subject C1
291101 Environmental Engineering Modelling
780199 Other
Abstract The aim of the study presented was to implement a process model to simulate the dynamic behaviour of a pilot-scale process for anaerobic two-stage digestion of sewage sludge. The model implemented was initiated to support experimental investigations of the anaerobic two-stage digestion process. The model concept implemented in the simulation software package MATLAB(TM)/Simulink(R) is a derivative of the IWA Anaerobic Digestion Model No.1 (ADM1) that has been developed by the IWA task group for mathematical modelling of anaerobic processes. In the present study the original model concept has been adapted and applied to replicate a two-stage digestion process. Testing procedures, including balance checks and 'benchmarking' tests were carried out to verify the accuracy of the implementation. These combined measures ensured a faultless model implementation without numerical inconsistencies. Parameters for both, the thermophilic and the mesophilic process stage, have been estimated successfully using data from lab-scale experiments described in literature. Due to the high number of parameters in the structured model, it was necessary to develop a customised procedure that limited the range of parameters to be estimated. The accuracy of the optimised parameter sets has been assessed against experimental data from pilot-scale experiments. Under these conditions, the model predicted reasonably well the dynamic behaviour of a two-stage digestion process in pilot scale. (C) 2004 Elsevier Ltd. All rights reserved.
Keyword Engineering, Environmental
Environmental Sciences
Water Resources
Anaerobic Two-stage Digestion
Sewage Sludge
Mathematical Modelling
Q-Index Code C1
Institutional Status UQ

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Created: Wed, 15 Aug 2007, 16:59:58 EST