Research Article
Adsorption of Heavy Metals on Bentonitic Soil for Use in Landfill Liners
Table 4
Preparation of feed solutions by adding 1 g analytical-grade reagents to distilled water and dilution.
| Metal | Salt | Element concentration (mg/L) | Stock solution | Dilution | 1 | 2 | 4 | 8 | 16 |
| Cd | CdCl2.H2O | 558 | 558 | 280 | 140 | 70 | 35 | Cr | CrCl3.6H2O | 195 | 195 | 98 | 49 | 24 | 12 | Cu | CuCl2.2H2O | 373 | 373 | 186 | 83 | 47 | 23 | Ni | Ni(NO3)2.2H2O | 202 | 202 | 101 | 50 | 25 | 39 | Pb | Pb(NO3)2 | 626 | 626 | 313 | 156 | 78 | 39 | Zn | Zn(NO3)2.6H2O | 220 | 220 | 110 | 55 | 28 | 14 |
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