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Emulating deep-sea bioremediation: oil plume degradation by undisturbed deep-sea microbial communities using a high-pressure sampling and experimentation system

Antoniou Eleftheria, Fragkou Efsevia, Charalampous Georgia, Marinakis Dimitrios, Kalogerakis Nikos, Gontikaki Evangelia

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URIhttp://purl.tuc.gr/dl/dias/5E2A07C8-2CED-46B0-A29D-41F6FBEC12C8-
Αναγνωριστικόhttps://doi.org/10.3390/en15134525-
Αναγνωριστικόhttps://www.mdpi.com/1996-1073/15/13/4525-
Γλώσσαen-
Μέγεθος16 pagesen
ΤίτλοςEmulating deep-sea bioremediation: oil plume degradation by undisturbed deep-sea microbial communities using a high-pressure sampling and experimentation systemen
ΔημιουργόςAntoniou Eleftheriaen
ΔημιουργόςΑντωνιου Ελευθεριαel
ΔημιουργόςFragkou Efseviaen
ΔημιουργόςΦραγκου Ευσεβιαel
ΔημιουργόςCharalampous Georgiaen
ΔημιουργόςΧαραλαμπους Γεωργιαel
ΔημιουργόςMarinakis Dimitriosen
ΔημιουργόςΜαρινακης Δημητριοςel
ΔημιουργόςKalogerakis Nikosen
ΔημιουργόςΚαλογερακης Νικοςel
ΔημιουργόςGontikaki Evangeliaen
ΔημιουργόςΓοντικακη Ευαγγελιαel
ΕκδότηςMDPIen
ΠερίληψηHydrocarbon 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
ΤύποςPeer-Reviewed Journal Publicationen
ΤύποςΔημοσίευση σε Περιοδικό με Κριτέςel
Άδεια Χρήσηςhttp://creativecommons.org/licenses/by/4.0/en
Ημερομηνία2023-08-25-
Ημερομηνία Δημοσίευσης2022-
Θεματική ΚατηγορίαOil plume degradationen
Θεματική ΚατηγορίαDispersant applicationen
Θεματική ΚατηγορίαMarine microbesen
Θεματική ΚατηγορίαDeep-seaen
Θεματική ΚατηγορίαBioremediationen
Θεματική ΚατηγορίαHigh-pressure sampleren
Θεματική ΚατηγορίαHigh-pressure reactoren
Βιβλιογραφική ΑναφοράE. 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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