Assessment, monitoring, and regulation of odors of any origin in industrial enterprises
Okhrana truda i tekhnika bezopasnosti na promyshlennykh predpriyatiyakh (Labor protection and safety procedure at the industrial enterprises)
Virtually any enterprise in the food and chemical industries, as well as in treatment facilities,... more Virtually any enterprise in the food and chemical industries, as well as in treatment facilities, has waste with a distinctive unpleasant smell. Elimination of odors is becoming an urgent task for ensuring safety and labor protection at enterprises, as well as public health protection. Olga Malykh, junior research associate at the company "Odor Laboratory N 1", speaks about the experience of smell research at enterprises, the possibilities of olfactometric research, and modern methods and equipment.
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Papers by Olga Malykh
The article describes an examination of odour dispersion from a pig farm, situated near Stariy Oskol town in Belgorod Region. The aim of the study was to assess the facility's odour impact on the ambient air of Stariy Oskol and to determine the extent of the facility's responsibility for occurrence of malodours in the town, which citizens complained about. With that purpose, main typical air pollution sources were selected and sampled for further analysis with the dynamic olfactometry method. The method consists of sequential dilution of samples with clean odourless air and detection of the dilution degree needed to reach the threshold value. The olfactometric panel consisted of certified experts with average sensitivity to odours. Thus odour concentrations in gas mixtures being emitted from different sources were identified (in odour units per cubic metre, OU/m3), and they were used to calculate the corresponding odour emissions (in odour units per hour, OU/h). The contribution of each type of sources into the total emissions was determined: the emissions of the stables account for the largest percentage of the total emissions (94 %). The total odour emission value was used to construct a dispersion map with the help of AERMOD model, which showed the distribution of odour concentrations on the surrounding territories. The odour concentration in Stariy Oskol did not exceed 2 OU/m3, which is considered to be acceptable according to European standards.