Evaluation of Acid Leaching on the Removal of Heavy Metals and Soil Fertility in Contaminated Soil

Table 1

The brief description of contaminated soil used in this study.

Property	Original soil
Texture	Sandy clay loam
pH	7.6 ± 0.11
Organic matter (%)	1.91 ± 0.18
CEC (cmol·kg^−1)	4.58 ± 0.21
Total N (%)	0.13 ± 0.01
Total P (%)	2.82 ± 0.10
Total K (%)	1.74 ± 0.04
Available N (mg·kg^−1)	22.4 ± 1.17
Available P (mg·kg^−1)	187 ± 8.60
Available K (mg·kg^−1)	764 ± 40.54
Total metal concentrations (average content, mg·kg^−1)
Zn	1334 ± 83
Cd	25 ± 3
Cu	263 ± 18
Pb	525 ± 31