Experimental conditions | Sorbing materials | Aquatic medium | Kd Values (L/Kg) | Metal initial concentration | References |
Batch method (solid-solution ratio: 2: 20; pH: 12; contact time: 24 h) | Loamy sand soil | Water | 41.95 - 57.33 | 25 - 300 mg/L | |
Sandy loam soil | 52.04 - 67.15 | ||||
Batch method (solid-solution ratio: 1: 10; pH: (4.80 - 7.50); contact time: 6 days at 25˚C) | Soil (Mono-metal Experiment) | Water | 0.83 | 0 - 100 mg/L | |
Soil (Multi-metal Experiment) | 0.58 | ||||
Batch method (solid-solution ratio: 1: 20; pH: 5; contact time: 6 h) | Soil | Water | 1216 - 4975 | 10 - 200 mg/L | |
Kd values were calculated directly from the retardation factor (R) and soil properties. | loamy sand media | 2000 | Mean C0 (μg/L)-(0.4) | | |
Batch method (solid-solution ratio: 1:10; pH: 5.5-6.0; contact time: 24 h) | Soil | Water | 196.4 - 5572.5 | 1000 mg·L−1 | |
Batch competitive sorption method (solid-solution ratio: 1:20; pH: 3-7; contact time: 30 - 1440 min; 26˚C) | Untreated soil | Water | 0.03 - 0.53 | (200 mg/L) | |
IO-removed soil | 0.05 - 1.7 | ||||
OM-removed soil | 0.02 - 75.92 | ||||
Batch method (Desorption) | sediments | Water | 4.01 - 5.74 | | |
Batch method (solid-solution ratio: 1:10; pH: 7.4; contact time: 72 h | Aquifer sediments | Water | 554 - 10,000 | | |
Batch desorption method (solid-solution ratio: 2:50; pH:5; contact time: 22 h; 25 C) | Soil (single metal systems) | Water | 829.3 - 1107.5 | | |
Soil (binary metal systems) | 514.8 - 732.3 | ||||
Batch desorption method (solid-solution ratio: 2:50; pH: 5.5; contact time: 20 h; 25 C) | Soil (single metal systems) | Water | 508.5 - 1639.7 | 50 - 1000 µmol/L | |
Soil (binary metal systems) | 315 - 1065.6 |