Table 4: Effect of contact time on Cd2+ ions RE and qe at different initial concentrations (10 mg/L, 30 mg/L, and 50 mg/L) by D. regia.
Time (min) | Cd2+ RE% at Co (10) | Cd2+ RE% at Co (30) | Cd2+ RE% at Co (50) | qt at Co (10) | qt at Co (30) | qt at Co (50) | Ct at Co (10) | Ct at Co (30) | Ct at Co (50) |
20 | 90.97 | 90.20 | 80.99 | 1.52 | 4.51 | 6.67 | 0.90 | 2.93 | 10.00 |
40 | 93.57 | 94.07 | 93.16 | 1.56 | 4.70 | 7.76 | 0.64 | 1.78 | 3.42 |
60 | 93.98 | 92.80 | 91.08 | 1.57 | 4.64 | 7.59 | 0.60 | 2.16 | 4.46 |
80 | 96.29 | 95.40 | 90.87 | 1.61 | 4.73 | 7.57 | 0.37 | 1.37 | 4.56 |
100 | 93.88 | 88.92 | 86.86 | 1.56 | 4.45 | 7.24 | 0.61 | 3.32 | 6.57 |
120 | 92.95 | 91.86 | 88.55 | 1.55 | 4.58 | 7.38 | 0.70 | 2.50 | 5.73 |