References of "Romain, Anne-Claude"
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See detailL'odeur : question de sens ou de chimie
Romain, Anne-Claude ULg

Scientific conference (2014, August 28)

Afin de mesurer au mieux un paramètre, il faut préalablement connaître son identité. Concernant la métrologie de la pollution olfactive, toute la difficulté réside dans la particularité de cette pollution ... [more ▼]

Afin de mesurer au mieux un paramètre, il faut préalablement connaître son identité. Concernant la métrologie de la pollution olfactive, toute la difficulté réside dans la particularité de cette pollution. En effet, bien qu’associée à la pollution de l’air par les molécules volatiles qui la génèrent, elle en diffère par son effet sensoriel. Il va de soi que la pollution olfactive n’a de sens que par son odeur. Chaque individu a son propre odorat et dès lors sa propre interprétation de l’odeur. C’est cette subjectivité qui rend cette pollution si délicate à qualifier et à quantifier et qui la distingue de la pollution de l’air. De plus, contrairement à d’autres pollutions sensorielles de type sonore ou visuel, l’élément porteur ’est pas dans ce cas une grandeur physique telle que la longueur d’onde électromagnétique ou la variation de pression mais une grandeur physico-chimique particulière dont la mesure est beaucoup plus complexe. Un dictionnaire de langue française définit l’odeur comme « une émanation volatile, caractéristique de certains corps et susceptible de provoquer chez l’homme ou chez un animal des sensations dues à l’excitation d’organes spécialisés ». Cette définition de l’odeur met notamment en jeu deux disciplines : la chimie et la physiologie. En effet un chimiste pourrait présenter l’odeur comme un ensemble de molécules aux propriétés spécifiques qui inhalées par un individu génère une réaction, il s’intéresserait dès lors aux odorants alors qu’un physiologiste parlerait plutôt du stimulus induit par ces odorants et des mécanismes qui le provoquent au niveau des organes. Le traitement de l’information olfactive par le cerveau, la perception olfactive, conduit à plusieurs types de sensation. En effet, l’odeur perçue a trois grandes particularités : l’intensité, la qualité (ou la nature de l’odeur) et la tonalité hédonique ou affective (agrément/désagrément). A ces trois dimensions, il faut ajouter le caractère temporel du stimulus, dimension très utilisée dans le cadre de la pollution olfactive. [less ▲]

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See detailCompost Pile Monitoring Using Different Approaches:GC-MS, E-nose and dynamic olfactometry
Gutierrez, M. C.; Chica, A. F.; Martin, M. A. et al

in Waste and Biomass Valorization (2014), 5(3), 469-479

The evaluation of odour emissions associated to the composting process is complex because these emissions depend on several factors such as the raw material to be composted, the different stages of the ... [more ▼]

The evaluation of odour emissions associated to the composting process is complex because these emissions depend on several factors such as the raw material to be composted, the different stages of the composting process, meteorological conditions, and others. For this reason, the aim of this paper is to compare complementary approaches to monitor odours. The odour source selected for this study is green waste compost at different maturity stages. The study site is a composting facility located in the south of Belgium. The compared approaches were: a portable e-nose developed by the Environmental Monitoring Research team (Arlon, Belgium) to monitor odorous emissions from the composting piles; chemical analyses performed in the laboratory using a GC–MS (manufactured by Thermo) to analyse volatile organic compounds which were collected by active sampling on Tenax TA sorbent simultaneously to the in situ e-nose measurements and olfactometric measurements to determine the odour concentration (ouE/m3) using the Odile olfactometer (Odotech). The portable e-nose was also used in the laboratory with compost odour samples collected in bags. The large numbers of data sets obtained were explored by statistical methods such as principal components analysis. The results obtained highlight the advantages of monitoring the composting process with these three approaches. Each approach gives different information about the composting process and the emissions generated. While the e-nose is capable of identifying some chemical family emissions and some activities such as turning steps, the GC–MS identifies each chemical compound emitted and dynamic olfactometry quantifies the odour concentration (ouE/m3) in relationship with these emissions. [less ▲]

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See detailLa problématique de la qualité de l'air intérieur
Romain, Anne-Claude ULg

Scientific conference (2014, February 27)

Qualité de l'air intérieur et émissions des matériaux de constructions Quelle est l'infornation déjà disponible et quelle réglementation & initiatives d'étiquetage Objectifs Quand un matériau est-il ... [more ▼]

Qualité de l'air intérieur et émissions des matériaux de constructions Quelle est l'infornation déjà disponible et quelle réglementation & initiatives d'étiquetage Objectifs Quand un matériau est-il approprié à l'usage intérieur? Comment obtenir les données d'émission des matériaux de construction? Exemples d'émissions des matériaux de construction et qualité de l'air dans les bâtiments Perspectives d'avenir- quelles sont les informations manquantes? Démontrer l'importance des émissions des matériaux de construction par rapport à la qualité de l'air intérieur Mettre la notion 'substances dangereuses' dans le bon contexte Préciser la relation complexe entre le comportement d'émission des matériaux de construction et la qualité de l'air intérieur Expliquer la relation entre la construction durable et la construction saine Se familiariser à la sélection des matériaux à basse émissivité Montrer les perspectives d'avenir [less ▲]

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See detailOdour monitoring by sensors technology
Romain, Anne-Claude ULg

Conference (2013, December 18)

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See detailOdour emissions impact of on-farm biogas production with co-digestion : a case study in four European farms of the Great Region
Adam, Gilles ULg; Gennen, Jérome; Ubeda Sanchez, Yolanda et al

Conference (2013, December 06)

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See detailRecursive PCA of e-nose data for anaerobic digestion reactor state monitoring
Adam, Gilles ULg; Lemaigre, Sébastien; Romain, Anne-Claude ULg et al

Poster (2013, July)

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See detailLa problématique de la qualité de l’air
Romain, Anne-Claude ULg

Scientific conference (2013, April 19)

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See detailProtocols, Standards and Methods for Odour Monitoring by Sensor Technologies
Romain, Anne-Claude ULg

Conference (2013, March 06)

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See detailMulti-method monitoring of odor emissions in agricultural biogas facilities.
Nicolas, Jacques ULg; Adam, Gilles ULg; Ubeda, Yolanda et al

in Proceedings of the 5th IWA conference on odours and air emissions, San Francisco, USA, March, 4-7, 2013 (2013, March)

The production of farm-based biogas and electricity is an area of alternative-energy interest to many livestock producers. However, it is still insignificant in comparison to the maximum potential of ... [more ▼]

The production of farm-based biogas and electricity is an area of alternative-energy interest to many livestock producers. However, it is still insignificant in comparison to the maximum potential of farms all over the world. Market penetration should involve better confidence in the technique and better understanding of its possible assets and limits. For instance, is the environmental impact of biomethanation positive or negative? What are the possible ways to avoid or to control process imbalances? In the context of a European project, the research group attempted to tackle those questions under the angle of gas emission and more particularly of odor annoyance. A multi-method approach was applied to monitor biogas and odor emissions, both at the laboratory level on pilot plants and at real scale in 4 agricultural biogas facilities, in Belgium, Luxembourg, France and Germany. Results show that digested material is generally less odorant than crude manure or slurry, while preserving all the amendment and fertilizing qualities of the original material. Possible annoyance of agricultural biogas facilities in the surroundings remains limited and can be solved through simple techniques. [less ▲]

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See detailUse of specific in-situ sensors : enose
Romain, Anne-Claude ULg

Conference (2013, January 30)

e-nose principle explanation

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See detail8.3 Landfill of Solid Waste
Romain, Anne-Claude ULg

in Belgiorno, V (Ed.) Odour Impact Assessment Handbook (2013)

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See detailContinuous odour measurement from fattening pig units
Romain, Anne-Claude ULg; Nicolas, Jacques ULg; Cobut, Pierre et al

in Atmospheric Environment (2013), 77

A study in experimental slatted-system fattening pig units was conducted with the aim of estimating the odour emission factor (in ou/s.pig), which can subsequently be used in dispersion models to assess ... [more ▼]

A study in experimental slatted-system fattening pig units was conducted with the aim of estimating the odour emission factor (in ou/s.pig), which can subsequently be used in dispersion models to assess the odour annoyance zone. Dynamic olfactometry measurements carried out at different development stages of pigs showed a logical trend of the mean predicted odour emission factor with the pig weight. However, the variation within the same weight class was much larger than variation between classes. Possible causes of such variation were identified as the evolution of ventilation rate during the day and the circadian rhythm of pig. To be able to monitor continuously the daily variation of the odour, an electronic nose was used with suitable regression model calibrated against olfactometric measurements. After appropriate validation check, the electronic nose proved to be convenient, as a complementary tool to dynamic olfactometry, to record the daily variation of the odour emission factor in the pig barn. It was demonstrated that, in the controlled conditions of the experimental pens, the daily variation of the odour emission rate could be mainly attributed to the sole influence of the circadian rhythm of pig. As a consequence, determining a representative odour emission factor in a real case cannot be based on a snapshot odour sampling. [less ▲]

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See detailEvaluation of an electronic nose for the early detection of organic overload of anaerobic digesters
Adam, Gilles ULg; Lemaigre, Sébastien; Romain, Anne-Claude ULg et al

in Bioprocess and Biosystems Engineering (2013), 36(1),

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 ... [more ▼]

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. [less ▲]

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See detailPOTENTIAL OF A NETWORK OF ELECTRONIC NOSES TO ASSESS IN REAL TIME THE ODOUR ANNOYANCE IN THE ENVIRONMENT OF A COMPOST FACILITY
Nicolas, Jacques ULg; Cerisier, C; Romain, Anne-Claude ULg et al

in Del Rosso, Renato (Ed.) Chemical engineering transactions : NOSE2012 International Conference on Environmental Odour (2012, September)

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See detailAPPLICATION OF CHEMICAL MASS BALANCE METHODOLOGY TO IDENTIFY THE DIFFERENT SOURCES RESPONSIBLE FOR THE OLFACTORY ANNOYANCE AT A RECEPTOR-SITE
Clarke, Kevin; Romain, Anne-Claude ULg; Locoge, Nadine et al

in Del Rosso, Renato (Ed.) Chemical engineering transactions : NOSE2012 International Conference on Environmental Odour (2012, September)

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See detailAN ALTERNATIVE APPROACH OF THE E-NOSE TRAINING PHASE IN ODOUR IMPACT ASSESSMENT
Giuliani, Stefano; Zarra, T; Nicolas, Jacques ULg et al

in Del Rosso, Renato (Ed.) Chemical engineering transactions : NOSE2012 International Conference on Environmental Odour (2012, September)

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See detailImpacts environnementaux des unités de biométhanisation
Nicolas, Jacques ULg; Neyrinck, Roland; Cerisier, Christophe et al

Report (2012)

The report presents a study conducted in the frame of a European Interreg project. The role of the research group was to investigate the possible environmental impacts of on-farm biogas production from ... [more ▼]

The report presents a study conducted in the frame of a European Interreg project. The role of the research group was to investigate the possible environmental impacts of on-farm biogas production from anaerobic reactors. The odour impact was chiefly analysed with the aim of assessing the odour generated by farms equipped for biogas production compared to classical farms. Also, the odour levels in the head space of various materials, either prior or after methanation were compared, using different methods. [less ▲]

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