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Optimised method for extraction of mobile species of heavy metals from polluted soils
Date issued
2007
Author(s)
Abstract
The paper proposed an optimized extraction method used for extraction of mobile forms
of heavy metals (Cu, Cd, Pb and Zn) from different types of polluted soils with clay structure. This
study presents a comparison between the results obtained using SR ISO 14870/1999 with 5 successive extractions and a ratio of soil:solution of 1:2 with the results obtained experimentally for one
single chemical extraction and different ratios between soil and solution (1:5, 1:7, 1:10). The results
obtained put in evidence similar concentration of mobile species and indicated that modified standard
method (ratio 1:10) is a good analytical method for estimation of mobile species concentration of
heavy metals from polluted soils. The total content and mobile forms of heavy metals were analysed
with AAS technique, using an ATI UNICAM SOLAR equipment.
of heavy metals (Cu, Cd, Pb and Zn) from different types of polluted soils with clay structure. This
study presents a comparison between the results obtained using SR ISO 14870/1999 with 5 successive extractions and a ratio of soil:solution of 1:2 with the results obtained experimentally for one
single chemical extraction and different ratios between soil and solution (1:5, 1:7, 1:10). The results
obtained put in evidence similar concentration of mobile species and indicated that modified standard
method (ratio 1:10) is a good analytical method for estimation of mobile species concentration of
heavy metals from polluted soils. The total content and mobile forms of heavy metals were analysed
with AAS technique, using an ATI UNICAM SOLAR equipment.
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Metoda optimizata fractie mobila sol 2007 JEPE.pdf
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