Sensing of gaseous malodors characteristic of landfills and waste treatment plants
Year: 2014
Authors: Fabbri B., Gherardi S., Giberti A., Guidi V., Malagù C.
Autors Affiliation: Univ Ferrara, Dept Phys & Earth Sci, Via Saragat 1-C, I-44122 Ferrara, Italy; MIST R SCRL, I-40129 Bologna, Italy; CNR, Ist Nazl Ott, I-50124 Florence, 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.
Journal/Review: JOURNAL OF SENSORS AND SENSOR SYSTEMS
Volume: 3 (1) Pages from: 61 to: 67
More Information: The results presented are part of the activities carried out by the MIST E-R Tecnopolo AMBIMAT laboratory of Bologna and Tecnopolo Terra&Acqua Tech of Ferrara. This work is financed by the FESR 2007-2013 operational program of Emilia-Romagna regional activities I. 1.1. B. Fabbri acknowledges financial support by Spinner Regione Emilia-Romagna.KeyWords: Gas Sensors; Solid-solutions; Odor; Olfactometry; Optimization; Emissions; ArrayDOI: 10.5194/jsss-3-61-2014Citations: 2data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-10-20References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here