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Institutional Repository [SANDBOX]
Technical University of Crete
Technical University of Crete
EN
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| URI | http://purl.tuc.gr/dl/dias/5E2A07C8-2CED-46B0-A29D-41F6FBEC12C8 | - |
| Identifier | https://doi.org/10.3390/en15134525 | - |
| Identifier | https://www.mdpi.com/1996-1073/15/13/4525 | - |
| Language | en | - |
| Extent | 16 pages | en |
| Title | Emulating deep-sea bioremediation: oil plume degradation by undisturbed deep-sea microbial communities using a high-pressure sampling and experimentation system | en |
| Creator | Antoniou Eleftheria | en |
| Creator | Αντωνιου Ελευθερια | el |
| Creator | Fragkou Efsevia | en |
| Creator | Φραγκου Ευσεβια | el |
| Creator | Charalampous Georgia | en |
| Creator | Χαραλαμπους Γεωργια | el |
| Creator | Marinakis Dimitrios | en |
| Creator | Μαρινακης Δημητριος | el |
| Creator | Kalogerakis Nikos | en |
| Creator | Καλογερακης Νικος | el |
| Creator | Gontikaki Evangelia | en |
| Creator | Γοντικακη Ευαγγελια | el |
| Publisher | MDPI | en |
| Content Summary | Hydrocarbon biodegradation rates in the deep-sea have been largely determined under atmospheric pressure, which may lead to non-representative results. In this work, we aim to study the response of deep-sea microbial communities of the Eastern Mediterranean Sea (EMS) to oil contamination at in situ environmental conditions and provide representative biodegradation rates. Seawater from a 600 to 1000 m depth was collected using a high-pressure (HP) sampling device equipped with a unidirectional check-valve, without depressurization upon retrieval. The sample was then passed into a HP-reactor via a piston pump without pressure disruption and used for a time-series oil biodegradation experiment at plume concentrations, with and without dispersant application, at 10 MPa and 14 °C. The experimental results demonstrated a high capacity of indigenous microbial communities in the deep EMS for alkane degradation regardless of dispersant application (>70%), while PAHs were highly degraded when oil was dispersed (>90%) and presented very low half-lives (19.4 to 2.2 days), compared to published data. To our knowledge, this is the first emulation study of deep-sea bioremediation using undisturbed deep-sea microbial communities. | en |
| Type of Item | Peer-Reviewed Journal Publication | en |
| Type of Item | Δημοσίευση σε Περιοδικό με Κριτές | el |
| License | http://creativecommons.org/licenses/by/4.0/ | en |
| Date of Item | 2023-08-25 | - |
| Date of Publication | 2022 | - |
| Subject | Oil plume degradation | en |
| Subject | Dispersant application | en |
| Subject | Marine microbes | en |
| Subject | Deep-sea | en |
| Subject | Bioremediation | en |
| Subject | High-pressure sampler | en |
| Subject | High-pressure reactor | en |
| Bibliographic Citation | E. Antoniou, E. Fragkou, G. Charalampous, D. Marinakis, N. Kalogerakis, and E. Gontikaki, “Emulating deep-sea bioremediation: oil plume degradation by undisturbed deep-sea microbial communities using a high-pressure sampling and experimentation system,” Energies, vol. 15, no. 13, Jun. 2022, doi: 10.3390/en15134525. | en |
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