| Title: | Components and dispersion characteristics of organic and inorganic odorous gases in a large-scale dairy farm |
| Author(s): | Guo H; Hao H; Zhang Q; Wang J; Liu J; |
| Address: | "a Department of Environmental Science and Engineering , Inner Mongolia University of Technology , Hohhot , People's Republic of China. b College of Oceanic and Atmospheric Sciences , Ocean University of China , Qingdao , People's Republic of China. c School of Ecology and Environment , Inner Mongolia University , Hohhot , People's Republic of China. d School of Civil Engineering , Inner Mongolia University of Technology , Hohhot , People's Republic of China" |
| DOI: | 10.1080/10962247.2018.1562389 |
| ISSN/ISBN: | 2162-2906 (Electronic) 1096-2247 (Linking) |
| Abstract: | "The rapid development of large-scale livestock husbandry has caused serious air pollution problems (e.g., The Tuzuoqi demonstration farm belonging to the Yili Group. The farm is located in the suburb of Hohhot City in northern China). In this study, the gases in typical areas of a large-scale dairy farm were sampled and measured for volatile organic compounds (VOCs), hydrogen sulfide, and ammonia concentrations. Fifty-two species of VOCs were identified. The VOCs emitted from the cowshed mainly consisted of halogenated hydrocarbons (16,960 microg/m(3)), ketones (15,700 microg/m(3)), esters (9889 microg/m(3)), and sulfur compounds (3677 microg/m(3)). The VOCs from the oxidation pond were mainly composed of halogenated hydrocarbons (21,940 microg/m(3)) and ketones (3589 microg/m(3)). The VOCs from the solid-liquid separation tank comprised halogenated hydrocarbons (32,010 microg/m(3)), ketones (7169 microg/m(3)), and sulfur compounds (1003 microg/m(3)). The highest concentrations of ammonia and hydrogen sulfide were obtained from the milking parlor and solid-liquid separation tank, respectively. The ammonia concentration declined gradually due to the superposition of ammonia emitted from the cowshed and milking parlor. Analysis results of the influences of distance and meteorological factors on the dispersion of ammonia and hydrogen sulfide suggested that the dilution factors decreased with increasing distance from the emission source. Within distance ranges of 0-10 and 10-25 m, the concentration dilution factors were positively correlated with wind speed and temperature but negatively correlated with humidity and atmospheric pressure. The results of our work can provide a theoretical basis for the prevention and control of odorous gases in large-scale livestock farms. Implications: Gases in typical areas of a large-scale dairy farm were sampled, and a total of 52 species of VOCs were identified. The highest concentrations of ketones, sulfur compounds, and esters were obtained at the cowshed (15,700, 3677, and 9889 microg/m(3), respectively). Within the distance ranges of 0-10 and 10-25 m, the concentration dilution factors were positively correlated with wind speed and temperature" |
| Keywords: | Air Pollutants/*analysis/chemistry Air Pollution/*analysis Ammonia/analysis/chemistry China *Dairying Environmental Monitoring/methods Hydrogen Sulfide/analysis/chemistry Odorants/*analysis Volatile Organic Compounds/*analysis/chemistry; |
| Notes: | "MedlineGuo, Haobo Hao, Hairui Zhang, Qiuping Wang, Juan Liu, Jianguo eng 2018/12/24 J Air Waste Manag Assoc. 2019 Jun; 69(6):717-725. doi: 10.1080/10962247.2018.1562389. Epub 2019 Mar 25" |
