Journal cover Journal topic
Journal of Sensors and Sensor Systems An open-access peer-reviewed journal
J. Sens. Sens. Syst., 3, 61-67, 2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.
Regular research article
21 Feb 2014
Sensing of gaseous malodors characteristic of landfills and waste treatment plants
B. Fabbri1,3, S. Gherardi1, A. Giberti1,2, V. Guidi1,2,3, and C. Malagù1,3 1Department of Physics and Earth Science, University of Ferrara, Via Saragat 1/c, 44122 Ferrara, Italy
2MIST E-R S.C.R.L., Via P. Gobetti 101, 40129 Bologna, Italy
3CNR-INO – Istituto Nazionale di Ottica, Largo Enrico Fermi 6, 50124 Firenze, Italy
Abstract. We approached the problem of sensing gaseous pollutants and malodors originating as a result of decomposition of organic compounds via chemoresistive sensors. A set of four screen-printed films based on two types of mixed tin and titanium oxides, mixed tungsten and tin oxides, and zinc oxide has been tested vs. the main gaseous components of malodors. N-butanol was also considered because of its importance as a reference gas in the odorimetric intensity scale. We found that, under proper working conditions, the films can sensitively detect such gases either in dry or in wet environments, within the range of concentrations of interest for their monitoring. We also demonstrated that the array is robust under solicitation by harmful interference gases such as CO, C6H6, NO2 and NO.

Citation: Fabbri, B., Gherardi, S., Giberti, A., Guidi, V., and Malagù, C.: Sensing of gaseous malodors characteristic of landfills and waste treatment plants, J. Sens. Sens. Syst., 3, 61-67,, 2014.
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