Natural and Technical Phytoremediation of Oil-Contaminated Soil

被引:13
|
作者
Panchenko, Leonid [1 ]
Muratova, Anna [1 ]
Dubrovskaya, Ekaterina [1 ]
Golubev, Sergey [1 ]
Turkovskaya, Olga [1 ]
机构
[1] Russian Acad Sci IBPPM RAS, Inst Biochem & Physiol Plants & Microorganisms, Saratov Sci Ctr, 13 Prospekt Entuziastov, Saratov 410049, Russia
来源
LIFE-BASEL | 2023年 / 13卷 / 01期
关键词
oil hydrocarbons; technical phytoremediation; natural phytoremediation; Medicago sativa; Lolium perenne; soil microorganisms; MEDICAGO-SATIVA; REMEDIATION; ATTENUATION; SLUDGE; BIOREMEDIATION; HYDROCARBONS; REVEGETATION;
D O I
10.3390/life13010177
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
Natural and technical phytoremediation approaches were compared for their efficacy in decontaminating oil-polluted soil. We examined 20 oil-contaminated sites of 800 to 12,000 m(2) each, with different contamination types (fresh or aged) and levels (4.2-27.4 g/kg). The study was conducted on a field scale in the industrial and adjacent areas of a petroleum refinery. Technical remediation with alfalfa (Medicago sativa L.), ryegrass (Lolium perenne L.), nitrogen fertilizer, and soil agrotechnical treatment was used to clean up 10 sites contaminated by oil hydrocarbons (average concentration, 13.7 g/kg). In technical phytoremediation, the per-year decontamination of soil was as high as 72-90%, whereas in natural phytoremediation (natural attenuation with native vegetation) at 10 other oil-contaminated sites, per-year decontamination was as high as that only after 5 years. Rhizodegradation is supposed as the principal mechanisms of both phytoremediation approaches.
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页数:11
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