Combining electrokinetic transport and bioremediation for enhanced removal of crude oil from contaminated marine sediments: Results of a long-term, mesocosm-scale experiment
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Combining electrokinetic transport and bioremediation for enhanced removal of crude oil from contaminated marine sediments : Results of a long-term, mesocosm-scale experiment. / Cappello, S.; Cruz Viggi, C.; Yakimov, M.; Rossetti, S.; Matturro, B.; Molina, L.; Segura, A.; Marqués, S.; Yuste, L.; Sevilla, E.; Rojo, F.; Sherry, A.; Mejeha, O. K.; Head, I. M.; Malmquist, L.; Christensen, J. H.; Kalogerakis, N.; Aulenta, F.
I: Water Research, Bind 157, 15.06.2019, s. 381-395.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Combining electrokinetic transport and bioremediation for enhanced removal of crude oil from contaminated marine sediments
T2 - Results of a long-term, mesocosm-scale experiment
AU - Cappello, S.
AU - Cruz Viggi, C.
AU - Yakimov, M.
AU - Rossetti, S.
AU - Matturro, B.
AU - Molina, L.
AU - Segura, A.
AU - Marqués, S.
AU - Yuste, L.
AU - Sevilla, E.
AU - Rojo, F.
AU - Sherry, A.
AU - Mejeha, O. K.
AU - Head, I. M.
AU - Malmquist, L.
AU - Christensen, J. H.
AU - Kalogerakis, N.
AU - Aulenta, F.
PY - 2019/6/15
Y1 - 2019/6/15
N2 - Marine sediments represent an important sink of harmful petroleum hydrocarbons after an accidental oil spill. Electrobioremediation techniques, which combine electrokinetic transport and biodegradation processes, represent an emerging technological platform for a sustainable remediation of contaminated sediments. Here, we describe the results of a long-term mesocosm-scale electrobioremediation experiment for the treatment of marine sediments contaminated by crude oil. A dimensionally stable anode and a stainless-steel mesh cathode were employed to drive seawater electrolysis at a fixed current density of 11 A/m 2 . This approach allowed establishing conditions conducive to contaminants biodegradation, as confirmed by the enrichment of Alcanivorax borkumensis cells harboring the alkB-gene and other aerobic hydrocarbonoclastic bacteria. Oil chemistry analyses indicated that aromatic hydrocarbons were primarily removed from the sediment via electroosmosis and low molecular weight alkanes (nC 6 to nC 10 ) via biodegradation.
AB - Marine sediments represent an important sink of harmful petroleum hydrocarbons after an accidental oil spill. Electrobioremediation techniques, which combine electrokinetic transport and biodegradation processes, represent an emerging technological platform for a sustainable remediation of contaminated sediments. Here, we describe the results of a long-term mesocosm-scale electrobioremediation experiment for the treatment of marine sediments contaminated by crude oil. A dimensionally stable anode and a stainless-steel mesh cathode were employed to drive seawater electrolysis at a fixed current density of 11 A/m 2 . This approach allowed establishing conditions conducive to contaminants biodegradation, as confirmed by the enrichment of Alcanivorax borkumensis cells harboring the alkB-gene and other aerobic hydrocarbonoclastic bacteria. Oil chemistry analyses indicated that aromatic hydrocarbons were primarily removed from the sediment via electroosmosis and low molecular weight alkanes (nC 6 to nC 10 ) via biodegradation.
KW - Crude oil
KW - Electrobioremediation
KW - Electrokinetic remediation
KW - Marine sediments
U2 - 10.1016/j.watres.2019.03.094
DO - 10.1016/j.watres.2019.03.094
M3 - Journal article
C2 - 30974287
AN - SCOPUS:85063791010
VL - 157
SP - 381
EP - 395
JO - Water Research
JF - Water Research
SN - 0043-1354
ER -
ID: 216909769