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DOI : 10.17640/KSWST.2021.29.6.43 , Vol.29, No.6, 43 ~ 51, 2021
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| Title |
| Characteristics and Correlation of Hydrogen Sulfide and Complex Odors Emitted by Sewage Treatment Plant Processes |
| 이길수 Kilsoo Lee , 한상집 Sangzib Han , 나경주 Kyeong-ju Na , 이채영 Chaeyoung Lee |
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| Abstract |
| Although sewage treatment plants play an important role in water purification, odors from the facilities are frequently a source of complaints, eliciting objections from both plant workers and neighbors. Hydrogen sulfide is a natural by-product of anaerobic digestion that has a strong, unpleasant odor. Therefore, many researchers in Korea have attempted to characterize odors emitted by sewage treatment plants in odor to reduce their emissions. However, these researches have primarily focused on odor intensity scales or the measurement of odor compounds in several sites without considering detailed information of the statistical analysis. In this study, using 75th percentile of unit processes as the complex odor, the operations connected with sludge thickening were discovered to be the main emission sources of odorous substances, followed by primary settling, equalization, anaerobic, dewatering, anoxic, preliminary treatment, and aerobic processes. These results will be aid in identifying major odor sources associated with sewage treatment processes and prioritizing an odor control plan. In this study, the possibility of predict complex odor from hydrogen sulfide concentrations was considered when performing correlation and regression analysis. It could be used to define the requirements for installing odor eliminators and establishing odor regulations in sewage treatment plants. |
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| Key Words |
| Complex odor, Correlation, Hydrogen sulfide, H2S, Sewage treatment plant, Statistics, 복합악취, 상관성, 황화수소, 하수처리시설, 통계량 |
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