References of "Romain, Anne-Claude"
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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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See detailCompost pile monitoring with GC-MS, e-nose and olfactometry : comparison of different approaches
Gutierrez, M.C.; Chica, A.F; Romain, Anne-Claude ULg

in Trémier, Anne; Dabert, Patrick; Druilhe, Céline (Eds.) et al Book of abstracts of the 8th international conference ORBIT2012 (2012)

This paper proposes a comparison of complementary approaches to monitor the odours : e-nose, olfactometry and GC-MS. The odour source selected for this study is a green waste compost at different maturity ... [more ▼]

This paper proposes a comparison of complementary approaches to monitor the odours : e-nose, olfactometry and GC-MS. The odour source selected for this study is a green waste compost at different maturity stages. The study site is a composting facility, located in the south of Belgium. [less ▲]

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See detailQuatrième campagne de mesure des odeurs sur le CET "Champ de Beaumont" à Monceau-sur-Sambre Estimation et monitoring des nuisances olfactives
Nicolas, Jacques ULg; Thomas, Jean-François; Delva, Julien et al

Report (2011)

The study is conducted in the frame of a programme of monitoring of all landfill sites in Wallonia. The "odour" part is assigned to ULg. The present report concerns more particularly a fourth campaign on ... [more ▼]

The study is conducted in the frame of a programme of monitoring of all landfill sites in Wallonia. The "odour" part is assigned to ULg. The present report concerns more particularly a fourth campaign on the site of "Champ de Beaumont at Monceau-sur-Sambre. Besides the usual field inspection technique, the research group has used electronic noses to monitor the emissions of odours near the source so as the analysis of complaints in the surroundings. [less ▲]

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See detailGas sensor array applied to the monitoring of biogas process
Adam, Gilles ULg; Lemaigre, Sébastien; Romain, Anne-Claude ULg et al

Conference (2011, May)

There is a lack of simple online monitoring system to control the performances of biogas reactors. The electronic nose technology appears to be an adapted device to deliver fast information about process ... [more ▼]

There is a lack of simple online monitoring system to control the performances of biogas reactors. The electronic nose technology appears to be an adapted device to deliver fast information about process disturbances in anaerobic reactors as it is adequate for online monitoring. In this study, twelve anaerobic mini-reactors were supervised with a home-made e-nose to observe process reaction in relation to organic overloads events. Usually, to avoid overload situations, on farms reactors are not fed at maximum load capacity, resulting in non optimized biogas production. The objective of the experiment was to determine if the gas sensors array feature can be related to the process state and if an indirect state variable, giving early warning of process faults, can be derived from the e-nose response. <br />The results demonstrated that focusing on gas phase of anaerobic reactors with a simple device composed of an array of non-specific gas sensors helped in the warning of disorders of the anaerobic digestion process. Mahalanobis distance from a cautious feeding group (group of observations indicating a good process) can be used as an indirect variable to evaluate the intensity of the state disorder. Euclidean distance has been also calculated but it was less informative than the Mahalanobis distance. [less ▲]

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See detailConvention de sous-traitance "FIDOR-Action" Etude de faisabilité du FIDOR dans le milieu récepteur de différents sites industriels et de sa capacité à agir sur la réduction de l'odeur.
Cerisier, Christophe; Collard, Laurent ULg; Romain, Anne-Claude ULg et al

Report (2011)

The report presents the results of a study conducted in the waste treatment facility of Habay and is the continuation of a former study which was aiming at designing the e-nose network named FIDOR. The ... [more ▼]

The report presents the results of a study conducted in the waste treatment facility of Habay and is the continuation of a former study which was aiming at designing the e-nose network named FIDOR. The present study concerns the ability of the FIDOR concept to forecast the odour annoyance in the surroundings and to control an odour abatement technique. An important part of the report concerns the validation of the predicted odour plume with resident observations. The report is the property of the company Odometric which commissioned the study. [less ▲]

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See detailIdentification of the different sources responsible for olfactory annoyance, using an e-nose
clarke, Kevin; Redon, Nathalie; Locoge, Nadine et al

in Perena, Gouma, (Ed.) OLFACTION AND ELECTRONIC NOSE: PROCEEDINGS OF THE 14TH INTERNATIONAL SYMPOSIUM ON OLFACTION AND ELECTRONIC NOSE (2011, May)

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See detailAnaerobic digestion process monitoring: focus on the gas phase using electronic nose technology
Adam, Gilles ULg; Lemaigre, Sébastien; Romain, Anne-Claude ULg et al

in GERBIO (Ed.) Proceedings of the International Congress Progress in Biogas 2011 - part 1 (2011, March 31)

Gas phase of four pilot-scale anaerobic reactors was monitored with a gas sensors array, also called electronic nose (e-nose) over three weeks. CH4, CO2, H2S, H2 concentration in the gas phase and biogas ... [more ▼]

Gas phase of four pilot-scale anaerobic reactors was monitored with a gas sensors array, also called electronic nose (e-nose) over three weeks. CH4, CO2, H2S, H2 concentration in the gas phase and biogas production rate were also measured. Reactors were exposed to process disturbances by doubling the organic loading rate and by decreasing the temperature from 38 to 32°C for 24 hours. During these tests, sludge pH and alkalinity were also measured. When organic loading was doubled, no changes were observed in pH and alkalinity, while hydrogen content in gas phase increased by 20% and took 8 hours to recover stable values of 130 ppm. Hydrogen sulphide also increased proportionally to organic loading of the reactors and took two days to return to stable values. Methane and carbon dioxide ratio changed from 1.2 to 0.95. No changes were observed during the temperature drop of the digesters apart from hydrogen concentration which increased sharply several hours. Electronic nose was able to detect variations in organic loading rates for the four anaerobic reactors, with increased signals for higher organic loadings of the pilots. Sensing of gas phase of anaerobic reactors was able to discriminate disorders of operating conditions of anaerobic reactors, especially organic loading. [less ▲]

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See detailCampagne de mesure des odeurs sur le centre de compostage de Farciennes. Estimation des nuisances olfactives
Nicolas, Jacques ULg; Waczek, Cédric; Thomas, Jean-François et al

Report (2011)

The study is conducted in the frame of a programme of monitoring of all landfill sites in Wallonia, which was extended to all biowaste treatment facility. The "odour" part is assigned to ULg. The present ... [more ▼]

The study is conducted in the frame of a programme of monitoring of all landfill sites in Wallonia, which was extended to all biowaste treatment facility. The "odour" part is assigned to ULg. The present report concerns more particularly a first campaign on the composting site of Farciennes. The report firstly introduces the composting process itself so as the potential odour sources on a compost site. Besides the usual field inspection technique, the research group has applied a dynamic olfactometry on the basis of samples collected through an flux chamber placed on the compost windrows. [less ▲]

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See detailQuatrième campagne de mesure des odeurs sur le CET "Cour-au-Bois" à Braine-le-Château Estimation des nuisances olfactives
Nicolas, Jacques ULg; Waczek, Cédric; Thomas, Jean-François et al

Report (2010)

The study is conducted in the frame of a programme of monitoring of all landfill sites in Wallonia. The "odour" part is assigned to ULg. The present report concerns more particularly a fourth campaign on ... [more ▼]

The study is conducted in the frame of a programme of monitoring of all landfill sites in Wallonia. The "odour" part is assigned to ULg. The present report concerns more particularly a fourth campaign on the site of "Cour au Bois" at Braine-le-Château. Besides the usual field inspection technique, the research group has conducted a survey in the neighbouring to assess the global odour annoyance generated by the landfill site. [less ▲]

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See detailE-nose development to predict odour annoyance in a receptor site
Romain, Anne-Claude ULg; Nicolas, Jacques ULg

Conference (2010, November 05)

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See detailExpertise of the Research Unit"Environmental Monitoring"
Romain, Anne-Claude ULg

Conference (2010, November 04)

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See detailPotential of the Electronic Nose as a Tool for the Detection of Disturbances in Anaerobic Digestion Processes
Adam, Gilles ULg; Neyrinck, Roland ULg; Lemaigre, Sébastien et al

in IWWG (Ed.) Venice 2010 Third International Symposium on Energy from Biomass and Waste (2010, November)

Most of agricultural biogas plants do not operate at optimum loading rate to avoid overload and process failure. This study aims at the development of an electronic nose technology to serve as a specific ... [more ▼]

Most of agricultural biogas plants do not operate at optimum loading rate to avoid overload and process failure. This study aims at the development of an electronic nose technology to serve as a specific monitoring tool for anaerobic digestion processes. Twelve semi-continuous anaerobic mini-digesters (1.6 L useful capacity) were fed with three different substrates: sucrose, maize oil and a mix 1:1 of sucrose and maize oil. Two feeding strategies were followed (i) a cautious organic load (1.3 gVS.L-1.day-1) and (ii) an increasing load strategy (1.3 to 5.33 gVS.L-1.day-1). Digesters were monitored during two months by analysing the biogas composition and collecting electronic nose measurements. The electronic nose was able to detect the impact of organic load variations. Overload situations were distinguished by the e-nose apparatus and the different feeding substrates induced distinct responses from the e-nose system. [less ▲]

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See detailRelevance of the resident diary method to map odour sources.
Nicolas, Jacques ULg; Cors, Marie; Delva, Julien et al

in Chemical Engineering Transactions (2010, September), 23

A methodology based on the social participation through the use of resident diaries was applied to evaluate the odour annoyance in the surroundings of an industrial park in Belgium during one year. The ... [more ▼]

A methodology based on the social participation through the use of resident diaries was applied to evaluate the odour annoyance in the surroundings of an industrial park in Belgium during one year. The studied area covers about 8 km2 and includes13 potential odour emitting facilities. A network of 44 residents was implied in the survey, from which 19 were particularly considered for a detailed analysis. The questionnaire aimed at providing twice-daily an odour strength rating on a 6-level scale together with an odour qualifier. The fact that the response rate corresponding to "no-odour" was high (79%) is particularly discussed. Some tests are proposed to check the plausibility of the responses, the consistency within clusters of residents and the individual performance of respondents to discriminate among odour ratings. The odour rose is presented as an attractive and visual tool, particularly suited in the case of multi-source areas, to map the different odour emissions, to point out the more worrying ones, some others creating less annoyance and possible new unpredicted ones. The resident diary method proves to be very interesting, especially in the case of an industrial area, provided that validation checks are performed to insure the data reliability. [less ▲]

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See detailLong term stability of metal oxide-based gas sensors for e-nose environmental applications : an overview
Romain, Anne-Claude ULg; Nicolas, Jacques ULg

in Sensors and actuators. B, Chemical (2010), 146

The e-nose technology has enormous potentialities for in site monitoring of off-odours. However a number of limitations are associated with the properties of chemical sensors, the signal processing ... [more ▼]

The e-nose technology has enormous potentialities for in site monitoring of off-odours. However a number of limitations are associated with the properties of chemical sensors, the signal processing performances and the real operating conditions of the environmental field. The field experience of the research group included testing of a large amount of sensors in different sensor technologies and among those the metal oxide-based gas sensors (Figaro type) are the best gas sensors for long term application, as stated during more than 1 year of field testing. To be usable for the off-odours field measurement, the e-nose has to deal with the lack of long term stability of these sensors. The drift and the sensors replacement have to be considered. In order to appraise the time evolution of the sensors and the effect on the results of an electronic nose, experimentation has been performed during more than 3 years on two identical sensor arrays. The two arrays contain the same six Figaro sensors and are in the same sensor chamber of the e-nose system. Both arrays have worked continuously, without break. This paper presents the drift of some TGS sensors for 7 years as well as the difference in the temporal behaviour of identical sensors and the consequence on the e-nose results after the sensor replacement in the sensors array. A correction of the drift and of the replacement effect is applied and the classification results are exposed, with and without correction. [less ▲]

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See detailConvention de sous-traitance "FIDOR" Etude de faisabilité d'un réseau de nez électroniques pour estimer la nuisance olfactive autour d'un centre de compostage.
Cerisier, Christophe; Collard, Laurent ULg; Romain, Anne-Claude ULg et al

Report (2010)

The report presents the results of a study conducted in the waste treatment facility of Habay and concerning an e-nose network named FIDOR, providing in real time the five components of the odour ... [more ▼]

The report presents the results of a study conducted in the waste treatment facility of Habay and concerning an e-nose network named FIDOR, providing in real time the five components of the odour annoyance, the Frequency, the Intensity, the Duration, the Offensiveness and the impact on the Receptor. The report is a complete description of the system and is the property of the company Odometric which commissioned the study. [less ▲]

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See detailRelation between emission and olfactory tests
Degrave, Christophe; Romain, Anne-Claude ULg; Nicolas, Jacques ULg

Conference (2010, January 21)

At present, sensory evaluation is not yet integrated in all labels and standards. After comparison and interpretation of the weaknesses and the strengths of the several existing methods, a methodology has ... [more ▼]

At present, sensory evaluation is not yet integrated in all labels and standards. After comparison and interpretation of the weaknesses and the strengths of the several existing methods, a methodology has been elaborated. Previous experience in off-odour measurements for environmental field investigations help us to propose a methodology based on the assessment of odour intensity and hedonic tone. Various floor covering materials were tested in the lab with a self-made instrument. The sampling procedure is based on a "Field and Laboratory Emission Cell" (FLEC). The odour of the material is compared to a 8-level butanol intensity scale generated through a vaporization chamber and 8 stainless steel capillaries distributing the diluted n-butanol to 8 sniffing ports. First results shows generally a correlation between bad hedonic tone and odour intensity. On the contrary, there are no systematic relations between VOC levels and odour perception. The less odorous materials (PVC) are also the ones with the higher level of total VOC and the linoleum had a strong odour with a low level of total VOC. The explanation lies in the chemical family composition of the emission. The PVC emission contains mainly alkanes compounds (non odorous family) whereas the linoleum contains also odorous chemical families like carboxylic acids and aldehydes. [less ▲]

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