Review Article
Role of Bioadsorbents in Reducing Toxic Metals
Table 1
Comparison of adsorption capacity of various agricultural wastes.
| Agricultural waste | Metal | Adsorption capacity (mg/g) | Reference |
| Wheat bran | Pb | 69–87 | [11] | Rice bran | Cu | 27.81 | [12] | Black gram husk | Pb, Cd, Zn, Cu, Ni | 19.56–49.97 | [13] | Dal husk | Cr(VI), Fe(III) | 96.05, 66.63 | [14] | Coffee waste | Pb | 63 | [15] | Exhausted coffee | Cr(VI) | 1.42 | [16] | Coffee husk | Cu | 7.5 | [17] | Tea residue | Cu/Pb | 48–65 | [18] | Almond shell | Pb | 8.08, 28.18 | [19] | Nut shell | Cr(VI) | 1.47 | [16] | Walnut shell | Cr(VI) | 1.33 | [16] | Chestnut shell | Cu | 12.56 | [20] | Peanut shell | Cu | 21.25 | [21] | Peanut hull | Cu/Pb | 0.18, 0.21 | [22] | Mango peel | Cu | 46.09 | [23] | Grape bagasse | Pb | 0.428 | [24] | Barley straw | Cu/Pb | 4.64, 23.2 | [19] | Saw dust | Cr(VI) | 10.01, 16.05 | [25, 26] | Coir fibers | Pb | 263 | [27] | Pumpkin waste | Cr(VI), Pb | 68 | [28] | Sugar beet pulp | Cu | 31.4 | [29] | Pea waste | Cr(VI) | 21.2 | [30] |
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