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Extraction of Heavy Metals from Water-Stable Soil Aggregates Using EDTA

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Figure

Table 1. Properties of the test soil sample.
Table 2. Kinetic dependence of the desorption of the metals described by Elovich formula    (S=A+ Blnt)
Fig. 3. Content of Zn, Pb, Cd and Cu  extracted with EDTA solution of different pH.
Fig. 4. Fractions of Zn, Pb, Cd and Cu in soil samples analyzed with BCR sequncial extraction procedure after extraction with  EDTA (B1 – exchangeable/acid soluble fraction, B2 – reducible fraction, B3 – oxidizible fraction, R – residual fraction)

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