Bioremediation technologies for polluted seawater sampled after an oil-spill in Taranto Gulf (Italy): A comparison of biostimulation, bioaugmentation and use of a washing agent in microcosm studies.
Mar Pollut Bull
; 106(1-2): 119-26, 2016 May 15.
Article
in En
| MEDLINE
| ID: mdl-26992747
ABSTRACT
One of the main challenges of bioremediation is to define efficient protocols having a low environmental impact. We have investigated the effect of three treatments in oily-seawater after a real oil-spill occurred in the Gulf of Taranto (Italy). Biostimulation with inorganic nutrients allowed the biodegradation of the 73±2.4% of hydrocarbons, bioaugmentation with a selected hydrocarbonoclastic consortium consisting of Alcanivorax borkumensis, Alcanivorax dieselolei, Marinobacter hydrocarbonoclasticus, Cycloclasticus sp. 78-ME and Thalassolituus oleivorans degraded 79±3.2%, while the addition of nutrients and a washing agent has allowed the degradation of the 69±2.6%. On the other hand, microbial community was severely affected by the addition of the washing agent and the same product seemed to inhibit the growth of the majority of strains composing the selected consortium at the tested concentration. The use of dispersant should be accurately evaluated also considering its effect on the principal actors of biodegradation.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Seawater
/
Water Pollutants, Chemical
/
Petroleum
/
Petroleum Pollution
/
Environmental Restoration and Remediation
Type of study:
Guideline
Country/Region as subject:
Europa
Language:
En
Journal:
Mar Pollut Bull
Year:
2016
Document type:
Article
Affiliation country:
Italia