Odorous compounds sources and transport from a swine deep-pit finishing operation: A case study
| Autor: | Guillermo Hernandez-Ramirez, Richard L. Pfeiffer, Kenwood Scoggin, John C. Tyndall, Steven Trabue, Thomas J. Sauer, Jerry L. Hatfield |
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| Rok vydání: | 2018 |
| Předmět: |
Environmental Engineering
Sorbent Swine Hydrogen sulfide 0208 environmental biotechnology chemistry.chemical_element Methanethiol 02 engineering and technology 010501 environmental sciences Management Monitoring Policy and Law 01 natural sciences Gas Chromatography-Mass Spectrometry chemistry.chemical_compound Animals Hydrogen Sulfide Waste Management and Disposal 0105 earth and related environmental sciences General Medicine Particulates Sulfur Manure Iowa 020801 environmental engineering chemistry Odor Volume (thermodynamics) Environmental chemistry Odorants Environmental science |
| Zdroj: | Journal of environmental management. 233 |
| ISSN: | 1095-8630 |
| Popis: | Odor emissions from swine finishing operations are an air quality issue that affects residents at the local level. A study was conducted at a commercial swine deep-pit finishing operation in central Iowa to monitor odorous compounds emitted and transported offsite. Gaseous compounds were sampled using either sorbent tubes or canisters with GC/MS analysis, and particulates matter (PM10) were sampled with high volume samplers and thermally extracted onto sorbent tubes for GC/MS analysis. Major odorous chemical classes detected at the swine facility included volatile sulfur compounds (VSC), volatile fatty acids (VFA), phenol and indole compounds. Manure storage was the main source of odorous compounds of which hydrogen sulfide (H2S), methanethiol, 4-methylphenol, and 3-methylindole were key offenders. Only H2S and 4-methylphenol were detected above odor threshold values (OTV) at all locations around the facility and both 4-methylphenol and 3-methylindole were detected above their OTV 1.5 km downwind from the swine facility. Odorous compounds generated during agitation and pumping of the deep pits was mainly H2S. Odorants were mainly transported in the gas phase with less than 0.1% being associated with PM10. Odor mitigation efforts should focus on gaseous compounds emitted from deep-pits and especially during manure agitation and deep-pit pumping. |
| Databáze: | OpenAIRE |
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