Reference : Evaluation of an electronic nose for the early detection of organic overload of anaer...
Scientific journals : Article
Life sciences : Microbiology
Physical, chemical, mathematical & earth Sciences : Multidisciplinary, general & others
http://hdl.handle.net/2268/126832
Evaluation of an electronic nose for the early detection of organic overload of anaerobic digesters
English
Adam, Gilles mailto [Université de Liège - ULg > DER Sc. et gest. de l'environnement (Arlon Campus Environ.) > Surveillance de l'environnement >]
Lemaigre, Sébastien mailto [Centre de recherche Public-Gabriel Lippmann > EVA Environment and Agro-biotechnologies Department > > >]
Romain, Anne-Claude mailto [Université de Liège - ULg > DER Sc. et gest. de l'environnement (Arlon Campus Environ.) > DER Sc. et gest. de l'environnement (Arlon Campus Environ.) >]
Nicolas, Jacques mailto [Université de Liège - ULg > DER Sc. et gest. de l'environnement (Arlon Campus Environ.) > Surveillance de l'environnement >]
Delfosse, Philippe mailto [Centre de Recherche Public-Gabriel Lippmann > EVA Environment and Agro-biotechnologies Department > > >]
2013
Bioprocess and Biosystems Engineering
Springer
36
1
Yes (verified by ORBi)
International
1615-7591
1615-7605
Berlin
Germany
[en] anaerobic digestion ; process monitoring ; electronic nose ; multivariate data analysis ; hotelling's T² test
[en] This study aims at the analysis of the utilization of an electronic nose (e-nose) to serve as a specific monitoring tool for anaerobic digestion process, especially for detecting organic overload. An array of non specific metal oxide semiconductor gas sensors were used to detect process faults due to organic overload events in twelve anaerobic semi-continuous reactors of 1.8 L. Three different load strategies were followed (i) a cautious organic load (1.3 gVS•L-1•day-1); (ii), an increasing load strategy (1.3 to 5.3 gVS∙L-1•day-1) and (iii) a cautious organic load with load pulses of up to 12 gVS•L-1•day-1. A first monitoring campaign was conducted with three different substrates : sucrose, maize oil, and a mix of sucrose/oil during 60 days. The second campaign was run with dry sugar beet pulp during 45 days. Hotelling's T²-value and upper control limit to a reference set of digesters fed with a cautious OLR (1.3 gVS•L-1•day-1), was used as indirect state variable of the reactors. Overload situations were identified by the e-nose apparatus with Hotelling’s T²-values at least 4-times higher in magnitude than the upper control limit of 23.7. These results confirmed that the e-nose technology appeared promising for online detection of process imbalances in the domain of anaerobic digestion.
Environmental Monitoring - University of Liège ; EVA - Environment and Agrobiotechnologies - Centre de Recherche Public Gabriel Lippmann
FNR Luxembourg
Researchers
http://hdl.handle.net/2268/126832
10.1007/s00449-012-0757-6
The original publication is available at www.springerlink.com

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