Research Article
Adsorption of Heavy Metals on Bentonitic Soil for Use in Landfill Liners
Table 2
Concentration ranges of heavy metals commonly found in sanitary landfill leachate.
| Metal | Concentration range (mg/L) | Metal | Concentration range (mg/L) |
| Ar | 0.005–1.600 | Fe | 0.08–5.50 | Cd | 0.00002–0.4 | Al | 0.01–1.4 | Pb | 0.0005–2.0000 | Hg | 0.00005–0.50 | Cu | 0.0005–10.000 | Ni | 0.0015–3.20 | Cr | 0.005–1.500 | Zn | 0.03–150.00 |
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Source: adapted from Kjeldsen et al. [ 46] and Baun and Christensen [ 47]. |