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Technical University of Crete
Technical University of Crete
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| URI: | http://purl.tuc.gr/dl/dias/458E5412-6823-4516-81D2-DC0B0E7FE5A5 | ||
| Year | 2007 | ||
| Type of Item | Peer-Reviewed Journal Publication | ||
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| Bibliographic Citation | E. Gidarakos and M. Aivalioti, "Large scale and long term application of bioslurping: the case of a Greek petroleum refinery site", J. Hazard. Mater., vol. 149, no. 3, pp. 574-581, Jul. 2007. doi:10.1016/j.jhazmat.2007.06.110 https://doi.org/10.1016/j.jhazmat.2007.06.110 | ||
| Appears in Collections |
This paper presents the course and the remediation results of a 4-year application of bioslurping technology on the subsurface of a Greek petroleum refinery, which is still under full operation and has important and complicated subsurface contamination problems, mainly due to the presence of light non-aqueous phase liquids (LNAPL). About 55 wells are connected to the central bioslurping unit, while a mobile bioslurping unit is also used whenever and wherever is necessary. Moreover, there are about 120 additional wells for the monitoring of the subsurface of the facilities that cover a total area of 1,000,000 m(2). An integrated monitoring program has also been developed and applied on the site, including frequent LNAPL layer depth and thickness measurements, conduction of bail-down and recovery tests, sampling and chemical analysis of the free oil phase, etc., so as to evaluate the remediation technique's efficiency and ensure a prompt tracing of any new potential leak. Despite the occurrence of new leaks within the last 4 years and the observed entrapment of LNAPL in the vadoze zone, bioslurping has managed to greatly restrict the original plume within certain and relatively small parts of the refinery facilities.
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