Characterization of 1,4-Dioxane Biodegradation by a Microbial Community
In this study, a microbial community of bacteria was investigated for 1,4-dioxane(1,4-D) biodegradation. The enriched culture was investigated for 1,4-dioxane mineralization, co-metabolism of 1,4-dioxane and extra carbon sources, and characterized 1,4-dioxane biodegradation kinetics. The mineralizat...
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MDPI AG
2020-12-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/12/12/3372 |
| _version_ | 1797546041537462272 |
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| author | Kang Hoon Lee Young Min Wie Yong-Soo Lee |
| author_facet | Kang Hoon Lee Young Min Wie Yong-Soo Lee |
| author_sort | Kang Hoon Lee |
| collection | DOAJ |
| description | In this study, a microbial community of bacteria was investigated for 1,4-dioxane(1,4-D) biodegradation. The enriched culture was investigated for 1,4-dioxane mineralization, co-metabolism of 1,4-dioxane and extra carbon sources, and characterized 1,4-dioxane biodegradation kinetics. The mineralization test indicates that the enriched culture was able to degrade 1,4-dioxane as the sole carbon and energy source. Interestingly, the distribution of 1,4-dioxane into the final biodegrading products were 36.9% into biomass, 58.3% completely mineralized to CO<sub>2</sub>, and about 4% escaped as VOC. The enriched culture has a high affinity with 1,4-dioxane during biodegradation. The kinetic coefficients of the Monod equation were q<sub>max</sub> = 0.0063 mg 1,4-D/mg VSS/h, K<sub>s</sub> = 9.42 mg/L, Y<sub>T</sub> = 0.43 mg VSS/mg 1,4-dioxane and the decay rate was k<sub>d</sub> = 0.023 mg/mg/h. Tetrahydrofuran (THF) and ethylene glycol were both consumed together with 1,4-dioxane by the enriched culture; however, ethylene glycol did not show any influence on 1,4-dioxane biodegradation, while THF proved to be a competitive. |
| first_indexed | 2024-03-10T14:24:27Z |
| format | Article |
| id | doaj.art-98268726cf0d4aef99a705058e0d6530 |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-10T14:24:27Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-98268726cf0d4aef99a705058e0d65302023-11-20T23:08:37ZengMDPI AGWater2073-44412020-12-011212337210.3390/w12123372Characterization of 1,4-Dioxane Biodegradation by a Microbial CommunityKang Hoon Lee0Young Min Wie1Yong-Soo Lee2Department of Civil &Environmental Engineering, Hanyang University, 222 Seongdong-gu, Seoul 04763, KoreaDepartment of Materials Engineering, Kyonggi University, Suwon, Gyeonggi-do 16227, KoreaDepartment of Civil &Environmental Engineering, Hanyang University, 222 Seongdong-gu, Seoul 04763, KoreaIn this study, a microbial community of bacteria was investigated for 1,4-dioxane(1,4-D) biodegradation. The enriched culture was investigated for 1,4-dioxane mineralization, co-metabolism of 1,4-dioxane and extra carbon sources, and characterized 1,4-dioxane biodegradation kinetics. The mineralization test indicates that the enriched culture was able to degrade 1,4-dioxane as the sole carbon and energy source. Interestingly, the distribution of 1,4-dioxane into the final biodegrading products were 36.9% into biomass, 58.3% completely mineralized to CO<sub>2</sub>, and about 4% escaped as VOC. The enriched culture has a high affinity with 1,4-dioxane during biodegradation. The kinetic coefficients of the Monod equation were q<sub>max</sub> = 0.0063 mg 1,4-D/mg VSS/h, K<sub>s</sub> = 9.42 mg/L, Y<sub>T</sub> = 0.43 mg VSS/mg 1,4-dioxane and the decay rate was k<sub>d</sub> = 0.023 mg/mg/h. Tetrahydrofuran (THF) and ethylene glycol were both consumed together with 1,4-dioxane by the enriched culture; however, ethylene glycol did not show any influence on 1,4-dioxane biodegradation, while THF proved to be a competitive.https://www.mdpi.com/2073-4441/12/12/3372biodegradationmineralizationkinetic parametercompetitive inhibition |
| spellingShingle | Kang Hoon Lee Young Min Wie Yong-Soo Lee Characterization of 1,4-Dioxane Biodegradation by a Microbial Community Water biodegradation mineralization kinetic parameter competitive inhibition |
| title | Characterization of 1,4-Dioxane Biodegradation by a Microbial Community |
| title_full | Characterization of 1,4-Dioxane Biodegradation by a Microbial Community |
| title_fullStr | Characterization of 1,4-Dioxane Biodegradation by a Microbial Community |
| title_full_unstemmed | Characterization of 1,4-Dioxane Biodegradation by a Microbial Community |
| title_short | Characterization of 1,4-Dioxane Biodegradation by a Microbial Community |
| title_sort | characterization of 1 4 dioxane biodegradation by a microbial community |
| topic | biodegradation mineralization kinetic parameter competitive inhibition |
| url | https://www.mdpi.com/2073-4441/12/12/3372 |
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