References of "Romain, Anne-Claude"
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See detailElectronic nose Technology for reactor state and biogas quality assessment in anaerobic digestion
Adam, Gilles ULg; Lemaigre, Sébastien; Goux, Xavier et al

Poster (2015, March 17)

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See detailSick Building Syndrome : Analyse et prévention
Romain, Anne-Claude ULg

Scientific conference (2015, January 22)

Le SBS se caractérise par un ou plusieurs symptômes non spécifiques touchant la peau, les muqueuses, le système respiratoire et/ou le système nerveux central. Ces symptômes apparaissent rapidement lorsque ... [more ▼]

Le SBS se caractérise par un ou plusieurs symptômes non spécifiques touchant la peau, les muqueuses, le système respiratoire et/ou le système nerveux central. Ces symptômes apparaissent rapidement lorsque des personnes séjournent dans un bâtiment et s’estompent, voire le plus souvent disparaissent, dès qu’elles le quittent, le soir, le week end ou durant les vacances. Ils sont donc indéniablement liés à l’occupation des locaux. Le SBS a été défini par l’Organisation Mondiale de la Santé ou OMS en 1983 qui en 1984 a évalué à 30% des bâtiments nouveaux ou rénovés le taux de « sick buildings ». Les symptômes a long terme incluent les allergies et l’asthme, certains cancers, des maladies auto-immunes ou neurodégénératives. POINTS ABORDES • Définition du SBS • Analyse des sources de contamination indoor • Solutions pour réduire la contamination indoor • Actions préventives OBJECTIFS • Comprendre le SBS, ses expressions • Identifier les sources d’inconfort • Pouvoir anticiper et solutionner les problèmes sources d’inconfort [less ▲]

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See detailUpscaling of an electronic nose for continuously stirred tank reactor stability monitoring from pilot-scale to real-scale agricultural co-digestion biogas plant
Adam, Gilles ULg; Lemaigre, Sébastien; Goux, Xavier et al

in Bioresource Technology (2015), 178

This study investigated the use of an electronic nose for on-line anaerobic reactor state monitoring at the pilot-scale level and then upscaling to the full-scale level. E-nose indicator was compared to ... [more ▼]

This study investigated the use of an electronic nose for on-line anaerobic reactor state monitoring at the pilot-scale level and then upscaling to the full-scale level. E-nose indicator was compared to classical state indicators such as pH, alkalinity, volatile fatty acids concentration and to other gas phase compounds. Multivariate statistical process control method, based on principal component analysis and the Hotelling's T² statistics was used to derive an indicator representative of the reactor state. At the pilot-scale level, the e-nose indicator was relevant and could distinguish 3 process states: steady-state, transient and collapsing process. At the full-scale level, the e-nose indicator could provide the warning of the major disturbance whereas two slight disturbances were not detected and it gave one major false alarm. This work showed that gas phase relation with anaerobic process should be deeper investigated, as an e-nose could indicate the reactor state, focusing on the gas phase. [less ▲]

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See detailOutline of ULg chemical sensors applications for IAQ evaluation
Romain, Anne-Claude ULg

Conference (2014, December 04)

The arrival of the European and National laws* concerning the official labelling of building materials (CE marking) and the respect of concentration values for some compounds regulations in public ... [more ▼]

The arrival of the European and National laws* concerning the official labelling of building materials (CE marking) and the respect of concentration values for some compounds regulations in public buildings as for instance schools, the emergence of the Environmental Assessments of buildings (Breeam, HQE,…) beside the energy performance, as well as the awareness increase of the impact of indoor air quality on the wellness and health (ie ENVIE and Healthvent projects [1]) lead inevitably to the development of new sensing technologies related to the IAQ evaluation. Among the numerous existing measurement devices, electrochemical cells, NDIR and PID ones are the most encountered sensors on the market. The major uses are real time monitoring (CO2) and “friendly” handheld devices. Other applications are also studied in several research labs. Few years ago, the ULg research team investigated the interest of MOS chemical sensors arrays for IAQ evaluation. This presentation aims to review some of the results of those projects. A first is the fast and simple diagnosis of moulds on building materials. The identification of contaminated materials among uncontaminated ones was successful [2-4]. However, the low concentration of the MVOC markers compounds (below 10 µg/m³) and the complexity of the background (material emissions, and VOC content of the indoor air) curbed the use of MOS sensors. Specific preconcentrations have to be developed to improve the diagnosis. Nowadays, with the emergence of new sensing materials and new measurement principles (eg IMS-ion mobility spectrometry [5]), perspectives are again opened. Another project (HEMICPD, Belgian project “Horizontal evaluation method for the implementation of the Construction Products Directive”-Emissions to indoor air [6]) concerned the marking of building materials and one of the tasks was to test the sensors array principle to monitor the compounds emanation from different building material, during 28 days, in emission test chambers. Another goal was to investigate a classification of the materials including their odour level. The results on the use of sensors to evaluate the efficiency of “masking” products pulverised in wallpapers and to manage their use are also explained. [less ▲]

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See detailOmniscientis project-final report
Omniscientis, partenaires; Romain, Anne-Claude ULg

Conference (2014, December)

The EU-funded 'Odour monitoring and information system based on citizen and technology innovative sensors' (http://www.omniscientis.eu/, OMNISCIENTIS) project has made significant inroads in this regard ... [more ▼]

The EU-funded 'Odour monitoring and information system based on citizen and technology innovative sensors' (http://www.omniscientis.eu/, OMNISCIENTIS) project has made significant inroads in this regard with the aim of mitigating odour annoyance. To begin with, documents were developed describing the desired specifications for odour measurement, dispersion modelling and information technologies. In parallel, the needs and expectations of all stakeholders, including citizens, regulatory authorities and industrial bodies, were taken into consideration. Citizens' feedback on odour acceptability levels were gathered through smartphones and using the living lab approach. They were further combined with measurements from e-nose and odour dispersion models. Project members developed an Odour Information System that produces validated monitoring statistics and impact levels for local authorities to support environment-related decision-making and for citizens to give them feedback on their complaints. A mobile application is also available, used by citizens to perform odour related observations. Over 5000 observations were sent until now. Besides, two in-situ e-nose sensors and a meteorological station were installed and calibrated in the industrial site in Belgium, serving as pilot. Further 18 industrial parameters are collected in real time and 15 odour field surveys have been performed to understand odour sources and characteristics. The e-nose technology was optimised through tests and improvements to better understand relevant odour parameters at the second pilot site, a pig farm in Austria. Researchers adapted the GRAL-System pollutant dispersion model to develop a fast odour dispersion modelling system using harmonised real-time meteorological data and industrial emission measurements. It was validated with the odour emission rates, olfactometry campaigns and citizens observations. Most of the GRAL-solver components were implemented in Cuda with a speed improved by a factor superior of 100. Project activities were disseminated via project website and factsheets, 3 scientific papers, 13 international conferences and 3 user workshops involving selected citizens, technicians and authorities. Local environmental governance was enhanced through citizen empowerment via monthly meetings and specific methodologies. Better and timely feedback on undesirable odours arising from certain emissions will help in setting evidence-based acceptable odour limits. Ultimately, a particular attention have been addressed by all partners and in particular by involved SMEs in order to ensure the exploitation of the results and enabling the identification of concrete commercial opportunities that may be pursued after the project. [less ▲]

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See detailOdour measurement networks: e-noses and emission data
Romain, Anne-Claude ULg

Conference (2014, September 23)

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See detailChemical Mass Balance model applied to an olfactory annoyance problematic
Clarke, Kevin; Redon, Nathalie; Romain, Anne-Claude ULg et al

in Environmental Science & Technology (2014), Just accepted manuscript(web),

The source-receptor model CMB (Chemical Mass Balance) generally used for air pollution studies is applied for the first time to solve odour signatures issues. The olfactory annoyance perceived at a ... [more ▼]

The source-receptor model CMB (Chemical Mass Balance) generally used for air pollution studies is applied for the first time to solve odour signatures issues. The olfactory annoyance perceived at a receptor site of an industrial area is often the result of a combination of different smells, emitted by several industrial sources. To identify the main responsible for the inconvenience, tools able to determine the contribution of each source directly where the annoyance is perceived are widely developed and deployed. In this work, the contributions of VOC sources, coming from a waste treatment plant containing 3 potential sources of olfactory annoyance (waste storage, production of biogas, and compost piles of green wastes), and perceived at a village located downwind, are studied by chemical analyses. The CMB methodology is applied and the results are finally compared to olfactometric methods, in order to validate whether it is appropriate to use this model for olfactory problems or not. [less ▲]

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See detailElectronic nose for reactor stability monitoring of an agricultural co-digestion biogas plant
Adam, Gilles ULg; Lemaigre, Sébastien; Delfosse, Philippe et al

in Progress in Biogas III - Biogas Production from agricultural biomass and organic residues (2014, September)

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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 detailRapport d'étude convention ISSEP-ULg PArtim 1 Echantillonnage de sources surfaciques d'odeur / Habay
Romain, Anne-Claude ULg; Adam, Gilles ULg; Molitor, Noémie ULg et al

Report (2014)

L'objectif de l'échantillonnage et de la mesure sur une source surfacique d'odeur est de déterminer le flux d'odeur surfacique (Specific Odour Emission Rate = SOER), en uo/m2.s, qui sera par la suite ... [more ▼]

L'objectif de l'échantillonnage et de la mesure sur une source surfacique d'odeur est de déterminer le flux d'odeur surfacique (Specific Odour Emission Rate = SOER), en uo/m2.s, qui sera par la suite multiplié par la surface totale d'émission pour obtenir le débit global d'odeur (Odour Emission Rate = OER), en uo/s. Dans le cas présent, il s'agissait surtout de comparer différents types de dispositifs d'échantillonnage et également d'évaluer la variabilité temporelle à court terme de l'émission (à différentes heures de la journée). Nous avons choisi de travailler sur un andain de compost de déchets verts en tout début de fermentation. Une première mesure a été effectuée le 21 juin 2013, à trois moments de la journée : vers 10h30 ("matin"), vers 12h30 ("midi") et vers 15h30 ("après-midi"). Une deuxième mesure a été réalisée le 10 juillet 2013 à deux moments de la journée, vers 11h00 ("matin") et vers 15h00 ("après-midi"). Une troisième a été réalisée le 19 septembre le matin à 11h00 (2 répétitions) [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 detailE-noses and integrated measurement networks
Hutsemekers, Virginie ULg; Romain, Anne-Claude ULg

Conference (2014, April 24)

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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 detailDevelopment of an Environmental Information System for Odour using Citizen and Technology Innovative Sensors and Advanced Modelling
Uhrner, Ulrich; Grosso, gioavanna; Romain, Anne-Claude ULg et al

in CEUR Workshop Proceedings (2014), 1322

The challenge of OMNISCIENTIS is to develop a community based odour monitoring and information system to mitigate odour annoyance and to foster citizens’ participation in environmental governance. The ... [more ▼]

The challenge of OMNISCIENTIS is to develop a community based odour monitoring and information system to mitigate odour annoyance and to foster citizens’ participation in environmental governance. The core is an information system collecting various data of odour emissions obtained by electronic noses and other sensors, meteorological conditions and observations by citizens acting as human sensors. A specific odour dispersion model is developed to use all this information and provide immediate feedback to all stakeholders. This work presents the architecture of the environmental information system, some first results from odour monitoring and model development and validation. [less ▲]

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See detailRapport d'étude convention ISSEP-ULg Mesure des odeurs sur le CET Cour au bois 5ème campagne Estimation des nuisances olfactives
Romain, Anne-Claude ULg; Delva, julien

Report (2014)

L’étude des nuisances olfactives du CET de Cour-au-Bois à Braine-le-Château s’inscrit dans le cadre de la mission "Réseau de contrôle des C.E.T. en Région wallonne" confiée à l'ISSeP par la DGO3 et sous ... [more ▼]

L’étude des nuisances olfactives du CET de Cour-au-Bois à Braine-le-Château s’inscrit dans le cadre de la mission "Réseau de contrôle des C.E.T. en Région wallonne" confiée à l'ISSeP par la DGO3 et sous traitée par l'unité de recherche "Surveillance de l'Environnement" (devenue unité « SAM » depuis janvier 2014*) du Département en Sciences et Gestion de l'Environnement de l'Université de Liège. Le présent rapport concerne la cinquième campagne menée sur le site de Cour-au-Bois et fait suite aux campagnes de 2002, 2004, 2007 et 2010. Il est alimenté par l’étude "odeur" réalisée par Odométric dans le cadre de l'étude d'incidence de 2014 portée par le bureau d’études ABV Environnement SC. L’étude a pour objectif de comparer les résultats obtenus par olfactométrie déambulatoire en 2010 [21] avec ceux de 2014. De plus, des nez électroniques développés par l’unité de recherche ont été placés sur le site entre avril et mai 2014 dans les stations de mesure de la qualité d’air ambiant de l’ISSEP. L’enjeu est d’ordre méthodologique. Il s’agit de comparer une surveillance continue des composés traceurs par des analyseurs avec une surveillance continue de l’ambiance globale (et de l’odeur) avec des capteurs chimiques. Cette étude fera l’objet d’un document annexe. [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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