References of "Delva, Julien"
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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 detailPossibilités et limites des nez électroniques pour la mesure des odeurs.
Nicolas, Jacques ULg; Delva, Julien

Conference (2012, March 15)

The communication aimed at presenting the potential of electronic noses to monitor environmental odours. The advantages and the limits of the concept were presented together with the point of view of a ... [more ▼]

The communication aimed at presenting the potential of electronic noses to monitor environmental odours. The advantages and the limits of the concept were presented together with the point of view of a company specialized in odour measurement. [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 detailFinalisation de la formule, applicable en Région wallonne, de la distance minimale d'implantation des porcheries et des poulaillers par rapport aux habitations.
Cobut, Pierre; Nicolas, Jacques ULg; Lalande, Dominique et al

Report (2011)

A formulae to calculate the minimum distance between livestock buildings and residential areas was designed by the research group in 2006. This report concerns a study aiming at finalizing the approach ... [more ▼]

A formulae to calculate the minimum distance between livestock buildings and residential areas was designed by the research group in 2006. This report concerns a study aiming at finalizing the approach towards a guideline applicable in Wallonia. Different enhancements to the former formulae are proposed, taking into account recent technical improvements, and a comparison with the odour percentile concept is presented. [less ▲]

Detailed reference viewed: 33 (2 ULg)
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 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 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 ▲]

Detailed reference viewed: 108 (12 ULg)
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 ▲]

Detailed reference viewed: 36 (3 ULg)
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See detailIdentification of odour sources in an industrial park from resident diaries statistics
Nicolas, Jacques ULg; Cors, M.; Romain, Anne-Claude ULg et al

in Atmospheric Environment (2010), 44

A methodology based on 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 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. The network involved 44 residents in the survey, among whom 19 were particularly considered for a detailed analysis. The questionnaire aimed at providing an odour rating twice-daily on a 6-level scale together with an odour type. 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 answers, the coherence 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 most worrying ones, to identify others creating less annoyance and possibly new unpredicted ones. The resident diary method has proven to be particularly useful, conjointly to other ones, to the case of multi-sources facilities in large areas, when the purpose is the assessment of the long-term evolution of odour annoyance. [less ▲]

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See detailTroisième campagne de mesure des odeurs sur le CET de Mont-Saint- Guibert Estimation des nuisances olfactives Influence de la topographie locale.
Nicolas, Jacques ULg; Waczek, Cédric; Delva, Julien et al

Report (2009)

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 third 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 third campaign on the site of Mont-saint-Guibert. Besides the usual field inspection technique, the research group has applied a 3D analysis to study the influence of the local topography on the shape and the size of the odour plume. [less ▲]

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See detailDeuxième campagne de mesure des odeurs sur le site de traitement des déchets de Habay Estimation des nuisances olfactives
Nicolas, Jacques ULg; Waczek, Cédric; Delva, Julien et al

Report (2009)

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 second 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 second campaign on the site of Habay, which is more than a simple landfill area, as it includes also other waste treatment facilities, such as composting and biodrying. Besides the usual field inspection technique, the research group has applied the electronic nose methodology to monitor the odour in the vicinity of the sources and a survey in the surroundings to try to validate the different results. [less ▲]

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See detailDeuxième campagne de mesure des odeurs sur le site de traitement des déchets de Tenneville Estimation des nuisances olfactives
Nicolas, Jacques ULg; Thomas, Jean-François; Delva, Julien et al

Report (2009)

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 second 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 second campaign on the site of Tenneville, which is more than a simple landfill area, as it includes also other waste treatment faciliities : composting, biogas production and drying of wastewater sludges. Besides the usual field inspection technique, the research group has applied a 3D analysis to study the shape and the size of the odour plume in this uneven region. [less ▲]

Detailed reference viewed: 30 (0 ULg)
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See detailIsolation and biomass production of a Saccharomyces cerevisiae strain binding copper and zinc ions
Stroobants, Aurore ULg; Delroisse, Jean-Marc; Delvigne, Frank ULg et al

in Applied Biochemistry and Biotechnology (2009), 157(1),

Detailed reference viewed: 76 (24 ULg)
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See detailTroisième campagne de mesure des odeurs sur le CET "Champ de Beaumont" à Monceau-sur-Sambre - Estimation des nuisances olfactives.
Nicolas, Jacques ULg; Thomas, Jean-François; Delva, Julien et al

Report (2008)

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 third 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 third campaign on the site of "Champ-de-Beaumont" at Monceau-sur-Sambre. Besides the usual field inspection technique, the research group has used the results of a survey conducted in the surrounding population together with olfactometric measurements and chemical analyses performed on samples collected through a flux chamber placed on the waste area. [less ▲]

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See detailProjet "NOSEMOLD" Appareil de diagnostic rapide des moisissures sur les matériaux de construction
Nicolas, Jacques ULg; Delva, Julien

Report (2008)

The report concerns a "FIRST spin-off" project aiming at creating a spin-off company based on the research of the unity of the university. The study concerned the design of an instrument, based on the ... [more ▼]

The report concerns a "FIRST spin-off" project aiming at creating a spin-off company based on the research of the unity of the university. The study concerned the design of an instrument, based on the "electronic nose" principle, to detect the presence of moulds on building materials from the analysis of the gas phase. The apparatus proved to be able of distinguishing pure material from contaminated one, but it was more difficult to identify the mould species. [less ▲]

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See detailTroisième campagne de mesure des odeurs sur le CET "Cour-au-Bois" à Braine le Château - Estimation des nuisances olfactives
Nicolas, Jacques ULg; Delva, Julien; Denne, Pierre et al

Report (2007)

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 third 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 third campaign on the site of "Cour-au-Bois" at Braine-le-Château. Besides the usual field inspection technique, the research group has used the results of a survey conducted in the surrounding population together with an analysis of the diary provided by a resident. [less ▲]

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See detailCampagne de mesure des odeurs sur le CET de Malvoisin - Estimation des nuisances olfactives.
Nicolas, Jacques ULg; Denne, P.; Romain, Anne-Claude ULg et al

Report (2007)

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 campaign on the ... [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 campaign on the site of Malvoisin. Besides the usual field inspection technique, the research group has used GC-MS to estimate the chemical composition of the atmosphere over the tipping area, dynamic olfactometry and flux emission chamber to assess the odour flux generated by the waste material and a survey in the surrounding population. [less ▲]

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See detailApplying the electronic nose in the environment : requirements for the instrument
Nicolas, Jacques ULg; Romain, Anne-Claude ULg; Delva, Julien

Conference (2006, June 01)

Applying the electronic nose to monitor environmental odours is not straightforward. The instrument must be adapted to the final objectives. It has to pass different steps : suitable sensor selection ... [more ▼]

Applying the electronic nose to monitor environmental odours is not straightforward. The instrument must be adapted to the final objectives. It has to pass different steps : suitable sensor selection, right choice of the target when supervised methods are used for data processing, choosing an odour-related dependant variable when using regressions, coping with the variability of environmental odour, taking the sensor drift into account, working only in concentrations above the limit of detection of the sensors, working with a mobile instrument in the field and coping with the ambient parameters. [less ▲]

Detailed reference viewed: 67 (45 ULg)