E7.3 - Sensing of Gaseous Malodors in Landfills and Waste Treatment Plants

B. Fabbri, S. Gherardi, A. Giberti, V. Guidi & C. Malag├╣
We approached the problem of sensing gaseous pollutants and malodors originated from decomposition of organic compounds via chemoresistive gas sensors. A sensor array based on screen-printed films of mixed tin and titanium oxides, mixed tungsten and tin oxides, and zinc oxide has been tested on the main gaseous components of these malodors. N-butanol was also considered as a reference gas in the olfactometric intensity scale. Under proper working conditions the films can sensitively detect such...