Research Article
Application of a Yeast Biosurfactant in the Removal of Heavy Metals and Hydrophobic Contaminant in a Soil Used as Slurry Barrier
Table 3
Chemical characterization of the natural soil.
| Determination | Values |
| pH in H2O | 5.20 | pH in KCl | 4.04 | Organic matter (g/Kg) | 0.00 | Extractable aluminum (Al+++) | 0.35 | Exchange Ca++ (cmol/kg) | 0.00 | Exchange Mg++(cmol/kg) | 5.80 | Exchange Na+ (cmol/kg) | 7.60 | Exchange K+ (cmol/kg) | 0.50 | sodium saturation (%) | 54.50 | Sum of cations (cmo/kg) | 13.94 | Extractable hydrogen (H+) (cmol/kg) | 5.85 | Cation exchange capacity (cmol/kg) | 20.14 | Saturation of base (%) | 69.21 | Fe2O3 in the sulfuric extract (%) | 4.63 | SiO2 in the fine soil (%) | 73.0 | Al2O3 in the sulfuric extract (%) | 13.0 | Water in the saturated extract (%) | 44.2 | Electric conductivity in the saturated extract (μS/cm) | 0.012 | Specific surface (m²/g) | 14.7 |
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