Article (Scientific journals)
Factorial Experimental Design to Optimize a Methodology to Analyse Odorous Chemical Mixtures: Effect on a Sensors Array and on Odour Concentration
Deshmukh, Sharvari; Romain, Anne-Claude
2018In Chemical Engineering Transactions, 68, p. 343-349
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Keywords :
sensors array; odor concentration; chemical mixtures
Abstract :
[en] The aim of this study is to check the influence of the chemical composition of odorous and non-odorous gases on the odour concentration and on the sensor responses. Design of experiments (DOE) is used to plan mixtures composition for 5 compounds with different le vels of concentrations. The synthetic gas experiments consist of preparation of samples bas ed on the factorial design consisting of five compounds i.e., Trimethyl Amine, Hydrogen Sulphide, Methane, Limonene and n-Butanol. Pareto plots are examined to evaluate the main effects of each sensor on the odour concentration. In addition, the response of each individual gas sensor is examined as a function of the chemical composition as well as the odour concentration. The response surface methodology analysis (Peris et al, 2009) is carried out on the experimental design of the synthetic gases. The stepwise procedure was used to analyse the results which is an automated tool used in the exploratory stages of model building to identify a useful subset of predictors. All the combinations are carried out with step wise regression and without stepwise regression. Also BOX-COX transformations with different values of alpha are also considered during the development of the regression model. Afterwards, multivariate analysis is performed to check the performances of a sensors array regarding the fluctuation of chemicals concentration. Finally, real odorous samples from a municipal solid waste site are measured with the same array and the results are compared with the ones obtained with the synthetic odorous gases.
Disciplines :
Physical, chemical, mathematical & earth Sciences: Multidisciplinary, general & others
Author, co-author :
Deshmukh, Sharvari
Romain, Anne-Claude  ;  Université de Liège - ULiège > DER Sc. et gest. de l'environnement (Arlon Campus Environ.) > Surveillance de l'environnement
Language :
English
Title :
Factorial Experimental Design to Optimize a Methodology to Analyse Odorous Chemical Mixtures: Effect on a Sensors Array and on Odour Concentration
Publication date :
2018
Journal title :
Chemical Engineering Transactions
ISSN :
1974-9791
eISSN :
2283-9216
Publisher :
Italian Association of Chemical Engineering - AIDIC, Italy
Volume :
68
Pages :
343-349
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 23 October 2018

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