Use of pyrophyllite to reduce heavy metals mobility in a soil environment
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Kuupäev
2020
Kättesaadav alates
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Abstrakt
This study revealed the effects of pyrophyllite ore materials on heavy metals mobility
in soil plots located near the steel mill in Zenica (Bosnia and Herzegovina). The experiment was
set up in a randomized block design with four pyrophyllite treatment rates i.e. 0, 200, 400 and
600 kg ha-1
in three replications. Analyses of the heavy metals (Cu, Zn, Mn, Ni, Cr, Pb, Cd) in
soil and plant samples were performed using atomic absorption spectrophotometry. Pyrophyllite
addition in soil was found to reduce the availability of all tested heavy metals in the studied soil.
The pyrophyllite addition at a rate of 200 kg ha-1
reduced Mn, Cu and Zn available forms in soil
by 11.1, 20.4 and 11.2%, respectively, compared with control. The pyrophyllite addition at higher
rates i.e. 400 and 600 kg ha-1 had an even higher impact on the decrease in Mn and Zn mobility
in studied soil in comparison with 200 kg ha-1
. Additionally, these pyrophyllite rates have the
ability to reduce Ni mobility in studied soil. The study also found a positive effect of all
pyrophyllite treatments to reduce heavy metals accumulation in the leaves of potato grown on the
studied soil. In sum, the results of this study indicate that pyrophyllite treatment could be an
effective technique for improving the environmental quality of soils and alleviating the hazards
of heavy metals to plants. However, further studies are necessary to confirm or denied this
hypothesis.
Kirjeldus
Märksõnad
accumulation, clay minerals, soil-plant system, articles