ISSN 1995-4301

ISSN 2618-8406

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2 issue of the journal in 2023

1 issue of the journal in 2023

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Phytoextraction of lead and cadmium from soils of landfills by some agricultural crops

L.V. Mosina, Yu.A. Kholopov, Yu.A. Zhandarova
Section: Remediation and rehabilitation
The results of the study of the accumulation of heavy metals (Pb and Cd) by various agricultural crops grown on soils selected from a depth of 0–10 cm of the landfill of municipal solid waste (MSW) “Salarievoˮ in comparison with the control sod-podzolic soil, as well as their stability within 30 days from the moment of emergence are presented. The studied phytoextractor plants were meadow bluegrass (Poa pratensis), cocksfoot (Dactylis glomerata), white mustard (Sinapis alba), annual sunflower (Helianthus annus), seed peas (Pisum sativum), common corn (Zea mays). It was found that when grown on the soil of the landfill, agricultural crops accumulate about twice as much heavy metals as compared to the control soil. A series to increase the extracting ability of plants for Pb has the form: seed peas – cocksfoot – sunflower annual – meadow bluegrass – white mustard – common corn. Row for Cd: seed peas – white mustard – meadow bluegrass – common corn – annual sunflower – cocksfoot. With regard to the extracting ability of the studied heavy metals, the minimum accumulating ability of the pea culture is common. The rest of the cultures exhibit different extractive ability, which does not fit into the general series. In relation to cadmium, the most optimal phytoextractor is the hedgehog team, which is also characterized by a high degree of stability. The crops of annual sunflower and common corn are also characterized by a high cleaning ability. Common corn is also recommended for phytoextraction of lead.
Keywords: bioaccumulation, municipal solid waste landfills, heavy metals, sustainability, phytoremediation, ecological state of the environment

Article published in number 1 for 2023
DOI: 10.25750/1995-4301-2023-1-154-161
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The journal was founded in 2007