Phytoremediation of oil and heavy metal contaminated soils of apsheron peninsula
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FARZALIYEV, Vagif, BABAYEV, Elbay, MAMMADOVA, Parvin, EYVAZOVA, Irada, GULIYEV, Azay. Phytoremediation of oil and heavy metal contaminated soils of apsheron peninsula. In: Ecological and environmental chemistry : - 2017, Ed. 6, 2-3 martie 2017, Chișinău. Chisinau, Republic of Moldova: Academy of Sciences of Moldova, 2017, Ediția 6, p. 150.
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Ecological and environmental chemistry
Ediția 6, 2017
Conferința "Ecological and environmental chemistry 2017"
6, Chișinău, Moldova, 2-3 martie 2017

Phytoremediation of oil and heavy metal contaminated soils of apsheron peninsula


Pag. 150-150

Farzaliyev Vagif, Babayev Elbay, Mammadova Parvin, Eyvazova Irada, Guliyev Azay
 
A.M.Guliyev Institute of Chemistry of Additives, NAS, Azerbaijan
 
Disponibil în IBN: 14 martie 2019


Rezumat

With growth of oil extraction, the scope of development of heavy-extracted resources with high density, which is often, enriched with toxic elements, in particular heavy metals (As, Cd, Cr, Cu, Hg, Mo, Ni, Pb, V, Zn) increases. Among various ways of purification and detoxification of contaminated soils there are the most relevant methods based on use of the combined metabolic potential of microorganisms and plants which are resistant to pollutants and can accumulate heavy metals. The research goal was developing a method of purifying and detoxifying oil and heavy metal contaminated soils by use of hydrocarbon-oxidizing microorganisms in association with plants able to accumulate metal ions. The research objects were oil-contaminated soil samples taken from the root zone (the rhizosphere) of plants, typical for territories of Gala oilfield area. There were carried out a number of physicochemical (moisture, pH, oil content) and microbiological analysis of the samples. The oil content in the root zone made 6.2%, in the surface layer - 7.5%. It has been established that in the rhizosphere of the investigated soils there are more bacteria (32.107cells/ml) than fungi (10 cells/ml) and yeast (103 cells/ml), more hydrocarbon-oxidizing microorganisms than in the surface layers of soil. The ability of selected wild (Asteracla and Juncaginacea) and some agricultural (corn, sunflower and beans) plants to efficiently accumulate heavy metals from contaminated soils was studied. The effectiveness of phytoextraction was judged by number of heavy metals removed from the soil samples and identified in the composition of grown plants. These investigated plants are tolerant to oil pollution and they can be used to recover oil-contaminated soils.