Characterisation of high-rate acidogenesis processes using a titration and off-gas analysis sensor

Wangnai, C., Zeng, R. J. and Keller, J. (2005). Characterisation of high-rate acidogenesis processes using a titration and off-gas analysis sensor. In: Serge R. Buiot, Spyros G. Pavlostathis and Jules B. van Lier, Water Science and Technology. Selected Proceedings of the 10th IWA Congress on Anaerobic Digestion. 10th IWA International Congress on Anaerobic Digestion, Montreal, Canada, (413-418). 29 August-2 September 2004.


Author Wangnai, C.
Zeng, R. J.
Keller, J.
Title of paper Characterisation of high-rate acidogenesis processes using a titration and off-gas analysis sensor
Conference name 10th IWA International Congress on Anaerobic Digestion
Conference location Montreal, Canada
Conference dates 29 August-2 September 2004
Proceedings title Water Science and Technology. Selected Proceedings of the 10th IWA Congress on Anaerobic Digestion   Check publisher's open access policy
Journal name Water Science and Technology   Check publisher's open access policy
Place of Publication London, U.K.
Publisher IWA Publishing; Portland Press
Publication Year 2005
Sub-type Fully published paper
ISSN 0273-1223
Editor Serge R. Buiot
Spyros G. Pavlostathis
Jules B. van Lier
Volume 52
Issue 1-2
Start page 413
End page 418
Total pages 6
Language eng
Formatted Abstract/Summary
Since publication of the Scientific and Technical Report (STR) describing the ADM1, the model has been extensively used, and analysed in both academic and practical applications. Adoption of the ADM1 in popular systems analysis tools such as the new wastewater benchmark (BSM2), and its use as a virtual industrial system can stimulate modelling of anaerobic processes by researchers and practitioners outside the core expertise of anaerobic processes. It has been used as a default structural element that allows researchers to concentrate on new extensions such as sulfate reduction, and new applications such as distributed parameter modelling of biofilms. The key limitations for anaerobic modelling originally identified in the STR were: (i) regulation of products from glucose fermentation, (ii) parameter values, and variability, and (iii) specific extensions. Parameter analysis has been widespread, and some detailed extensions have been developed (e.g., sulfate reduction). A verified extension that describes regulation of products from glucose fermentation is still limited, though there are promising fundamental approaches. This is a critical issue, given the current interest in renewable hydrogen production from carbohydrate-type waste. Critical analysis of the model has mainly focused on model structure reduction, hydrogen inhibition functions, and the default parameter set recommended in the STR. This default parameter set has largely been verified as a reasonable compromise, especially for wastewater sludge digestion. One criticism of note is that the ADM1 stoichiometry focuses on catabolism rather than anabolism. This means that inorganic carbon can be used unrealistically as a carbon source during some anabolic reactions. Advances and novel applications have also been made in the present issue, which focuses on the ADM1. These papers also explore a number of novel areas not originally envisaged in this review.
© IWA Publishing 2006.
Subjects C1
270899 Biotechnology not elsewhere classified
780105 Biological sciences
0904 Chemical Engineering
Keyword Environmental engineering
Environmental sciences
Water resources
Anaerobic digestion
Acidogenesis
Continuously stirred tank reactor
Mass balance
Titration and off-gas analysis
On-line monitoring
Volatile fatty acids
Q-Index Code C1

 
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Created: Wed, 15 Aug 2007, 06:59:52 EST