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Adsorption isotherm parameters for arsenic removal by S-nZVI
| |
Freundlich model |
|
|
|
Langmuir model |
|
|
|---|---|---|---|---|---|---|---|
| R 2 | n | K F (mg/g)(mg/L) -1/n | R L | R 2 | K L (L/mg) | q m (mg/g) | Arsenic species |
| 0.9575 |
2.17 |
14.36 |
0.06 |
0.9927 |
7.6 |
14 |
As(V) |
| 0.9487 | 1.74 | 9.36 | 0.16 | 0.9935 | 2.48 | 12.21 | As(III) |
(RL > 1): unfavorable adsorption, (0 < RL > 1): favorable, (RL = 0): irreversible and linear adsorption (RL = 1).
