Levels of Two Earthy and Musty Odor Compounds, 2-Methylisoborneol and Geosmin, in Wastewater and Concentration Variations during Treatment
We determined the concentrations of 2-methylisoborneol (2-MIB) and geosmin in final effluent from wastewater treatment plants in Kyoto City, Japan, investigating variations during treatment. The concentrations of 2-MIB and geosmin in final effluent were 5.1-29.8 and 3.9-13...
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| Format: | Article |
| Language: | English |
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Japan Society on Water Environment
2023-01-01
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| Series: | Journal of Water and Environment Technology |
| Subjects: | |
| Online Access: |
https://www.jstage.jst.go.jp/article/jwet/21/4/21_23-007/_pdf
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| _version_ | 1797738402171322368 |
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| author | Ko Hosoda Yasutaka Yasui Mitsuharu Nishikawa Kento Iwatani Tomoyuki Ohara Syunichiro Fujiwara Toshiharu Segawa |
| author_facet | Ko Hosoda Yasutaka Yasui Mitsuharu Nishikawa Kento Iwatani Tomoyuki Ohara Syunichiro Fujiwara Toshiharu Segawa |
| author_sort | Ko Hosoda |
| collection | DOAJ |
| description | We determined the concentrations of 2-methylisoborneol (2-MIB) and geosmin in final effluent from wastewater treatment plants in Kyoto City, Japan, investigating variations during treatment. The concentrations of 2-MIB and geosmin in final effluent were 5.1-29.8 and 3.9-13.9 ng/L, respectively. Geosmin concentrations in primary effluent were higher than those in influent. The concentration of 2-MIB increased in the reactors, while that of geosmin decreased. The anaerobic-anoxic-oxic and step-feed biological nitrogen removal processes lowered 2-MIB and geosmin concentrations more than did the anaerobic-oxic activated sludge process. Other factors regulating the concentrations of earthy and musty odor compounds may include activated sludge flowing from the secondary settling tank, changes in total nitrogen removal efficiency, anaerobic conditions in reactors or secondary settling tanks, and deterioration of activated sludge, including by formation of a scum layer. |
| first_indexed | 2024-03-12T13:42:20Z |
| format | Article |
| id | doaj.art-8c1b46dbe5ec482cbd3161efd1b141ed |
| institution | Directory Open Access Journal |
| issn | 1348-2165 |
| language | English |
| last_indexed | 2024-03-12T13:42:20Z |
| publishDate | 2023-01-01 |
| publisher | Japan Society on Water Environment |
| record_format | Article |
| series | Journal of Water and Environment Technology |
| spelling | doaj.art-8c1b46dbe5ec482cbd3161efd1b141ed2023-08-23T13:32:53ZengJapan Society on Water EnvironmentJournal of Water and Environment Technology1348-21652023-01-0121422423610.2965/jwet.23-00710.2965/jwet.23-007Levels of Two Earthy and Musty Odor Compounds, 2-Methylisoborneol and Geosmin, in Wastewater and Concentration Variations during TreatmentKo Hosoda0Yasutaka Yasui1Mitsuharu Nishikawa2Kento Iwatani3Tomoyuki Ohara4Syunichiro Fujiwara5Toshiharu Segawa6 Water Quality Management Center, Technical Supervising Office, Kyoto City Water Supply and Sewerage Bureau, Kyoto, Japan Water Quality Management Center, Technical Supervising Office, Kyoto City Water Supply and Sewerage Bureau, Kyoto, Japan Water Quality Management Center, Technical Supervising Office, Kyoto City Water Supply and Sewerage Bureau, Kyoto, Japan Water Quality Management Center, Technical Supervising Office, Kyoto City Water Supply and Sewerage Bureau, Kyoto, Japan Water Quality Management Center, Technical Supervising Office, Kyoto City Water Supply and Sewerage Bureau, Kyoto, Japan Water Quality Management Center, Technical Supervising Office, Kyoto City Water Supply and Sewerage Bureau, Kyoto, Japan Water Quality Management Center, Technical Supervising Office, Kyoto City Water Supply and Sewerage Bureau, Kyoto, Japan We determined the concentrations of 2-methylisoborneol (2-MIB) and geosmin in final effluent from wastewater treatment plants in Kyoto City, Japan, investigating variations during treatment. The concentrations of 2-MIB and geosmin in final effluent were 5.1-29.8 and 3.9-13.9 ng/L, respectively. Geosmin concentrations in primary effluent were higher than those in influent. The concentration of 2-MIB increased in the reactors, while that of geosmin decreased. The anaerobic-anoxic-oxic and step-feed biological nitrogen removal processes lowered 2-MIB and geosmin concentrations more than did the anaerobic-oxic activated sludge process. Other factors regulating the concentrations of earthy and musty odor compounds may include activated sludge flowing from the secondary settling tank, changes in total nitrogen removal efficiency, anaerobic conditions in reactors or secondary settling tanks, and deterioration of activated sludge, including by formation of a scum layer. https://www.jstage.jst.go.jp/article/jwet/21/4/21_23-007/_pdf 2-mibgeosminwastewater treatmentcomparison of processing methodsactivated sludge |
| spellingShingle | Ko Hosoda Yasutaka Yasui Mitsuharu Nishikawa Kento Iwatani Tomoyuki Ohara Syunichiro Fujiwara Toshiharu Segawa Levels of Two Earthy and Musty Odor Compounds, 2-Methylisoborneol and Geosmin, in Wastewater and Concentration Variations during Treatment Journal of Water and Environment Technology 2-mib geosmin wastewater treatment comparison of processing methods activated sludge |
| title | Levels of Two Earthy and Musty Odor Compounds, 2-Methylisoborneol and Geosmin, in Wastewater and Concentration Variations during Treatment |
| title_full | Levels of Two Earthy and Musty Odor Compounds, 2-Methylisoborneol and Geosmin, in Wastewater and Concentration Variations during Treatment |
| title_fullStr | Levels of Two Earthy and Musty Odor Compounds, 2-Methylisoborneol and Geosmin, in Wastewater and Concentration Variations during Treatment |
| title_full_unstemmed | Levels of Two Earthy and Musty Odor Compounds, 2-Methylisoborneol and Geosmin, in Wastewater and Concentration Variations during Treatment |
| title_short | Levels of Two Earthy and Musty Odor Compounds, 2-Methylisoborneol and Geosmin, in Wastewater and Concentration Variations during Treatment |
| title_sort | levels of two earthy and musty odor compounds 2 methylisoborneol and geosmin in wastewater and concentration variations during treatment |
| topic | 2-mib geosmin wastewater treatment comparison of processing methods activated sludge |
| url |
https://www.jstage.jst.go.jp/article/jwet/21/4/21_23-007/_pdf
|
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