The Scentroid SM100 was used to evaluate Inoculated waste biological stabilization degrees in a recent study. This was conducted by Mirosław Szyłak-Szydłowski from the University of Technology in Warsaw, Poland.

 Due to the transformation of compounds during waste bio-stabilization, tests were carried out on inoculated windows within a waste mechanical-biological treatment open site. Odor concentrations were measured for several weeks and were compared with kinetic parameters of organic compounds’ decomposition. Samples were analyzed using the Scentroid SM100, which served as an invaluable resource for this process.

The Scentroid SM100 field olfactometer, a dilution instrument, is used to present an odour at different concentration levels in a controlled way to the assessor. An odorous air is diluted via a valve system. SM-100 uses compressed air from a cylinder to dilute the test air sample. This cylinder is a high-pressure (31 MPa) carbon fibre container filled with compressed air. The device incorporates a dilution valve adjuster, which has a high accuracy to provide a constant flow of diluted air, to select one of 15 positions that correspond to the dilution ratio of clean air to the test air sample.

“The range of the device is selected through replaceable plates; a minimum of 2-fold dilution and a maximum of 30,000-fold dilution may be achieved. An active carbon filter additionally provides cylinder air purity [58]. This olfactometer is characterized by much higher accuracy than the commonly used Nasal Ranger field olfactometer and a larger range of determination.”

To read this study, click here!

To find out more about the Scentroid SM100, click here!