Research Article
Application of Chemically Modified and Unmodified Waste Biological Sorbents in Treatment of Wastewater
Table 3
Use of carbonized/uncarbonized waste protein sorbents in removal of heavy metals from wastewater.
| S/no. | Sorbents | Particle size | Contact time (mins) | % absorption of heavy metals | Pb | Mn | Ni | Cr |
| (1) | Carbonized goat hair | 325 μm | 60 | 87.05 | 80.84 | 94.62 | 81.89 | (2) | Carbonized feather | 325 μm | 87.05 | 83.58 | 90.51 | 92.83 | (3) | Carbonized goat hair | 625 μm | 65.88 | 78.53 | 77.18 | 58.87 | (4) | Carbonized feather | 625 μm | 78.82 | 79.79 | 73.33 | 73.58 | (5) | Uncarbonized goat hair | 325 μm | 76.00 | 76.21 | 90.51 | 78.11 | (6) | Uncarbonized feather | 325 μm | 81.18 | 74.32 | 78.97 | 83.77 | (7) | Uncarbonized goat hair | 625 μm | 77.65 | 63.16 | 70.77 | 61.51 | (8) | Uncarbonized feather | 625 μm | 75.29 | 68.21 | 73.85 | 52.83 |
| (9) | Carbonized goat hair | 325 μm | 120 | 85.41 | 77.26 | 97.95 | 84.15 | (10) | Carbonized feather | 325 μm | 91.53 | 82.74 | 94.36 | 89.06 | (11) | Carbonized goat hair | 625 μm | 71.76 | 80.21 | 76.64 | 66.79 | (12) | Carbonized feather | 625 μm | 89.18 | 80.84 | 74.87 | 76.60 | (13) | Uncarbonized goat hair | 325 μm | 75.53 | 83.58 | 90.26 | 85.66 | (14) | Uncarbonized feather | 325 μm | 90.12 | 81.26 | 77.69 | 92.08 | (15) | Uncarbonized goat hair | 625 μm | 65.18 | 68.84 | 74.87 | 63.77 | (16) | Uncarbonized feather | 625 μm | 79.76 | 68.63 | 74.62 | 63.02 |
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