Characterization and behavior of Hydrogen Sulfide plumes released fromactive sulfide-tar springs, Hit-Iraq

Özet

The characteristics and behavior of the H2S pollution plume in the emission zone of spring water and wastewaterare determined by a total of 120 readings of H2S in the air and 24 samples of dissolved gas analysis during theobservation period. Monitoring data is adjusted to determine the behavior of air pollution plumes and theirrelationship to emission sources by using statistical techniques and spatial analysis. The value of H2S emissionsto the atmosphere was 6.62 kg/year by an emission factor of 0.0055 mg/s. The study revealed an importantcorrelation between the continuous emission of H2S and its sources from springs and wastewater that is ex-plained by exponential relation Fit (Y = a ebX), [H2S concentration. In air (mg/1000 cc)] = 0.00015 exp{0.0107 (H2S conc. In water mg/l)}. The spatial distribution maps of H2S showed that 38% of Hit's space isexposed to H2S concentration under the influence of the unpleasant odor, eye irritation, and corrosion in in-frastructure parts (air conditioning apparatus). The characteristics of the H2S pollution plume, which were re-flected in the behavior of H2S distribution of the exposed area, varied due to the variation of dispersion processesresulting from wind speed change. The concentration of H2S was 11.6 times when the wind speed decreased by15.7 times. The wind speed affected the results of the mechanical dispersion coefficient in a positive relationship.Vertical and horizontal mechanical dispersion values in unstable weather conditions increased by 192 times and243 times than in extremely stable weather conditions.