Table 4 |
|
|
Average goodness-of-fit parameters (V(Y)) and 95% confidence intervals of V(Y) for the fit of each model to all of the Cu on kaolinite + HFO adsorption edge data (np = 255). Exchange site models use reaction (7) stability constant of 2.5 from Landry et al. [7] |
|
|
Model HFO/Kaolinite |
V(Y) (Vmin(Y), Vmax(Y)) |
|
|
|
|
DM/MV |
18.0 (15.2, 21.6) |
|
DM/BV |
13.6 (11.5, 16.3) |
|
DM/MVE |
58.2 (49.3, 69.8) |
|
DM/BVE |
27.0 (22.8, 32.3) |
|
DM/MVE(noCu) |
21.6 (18.3, 25.9) |
|
DM/BVE(noCu) |
13.6 (11.5, 16.3) |
|
SS/MV |
14.1 (12.0, 16.9) |
|
SS/BV |
15.9 (13.5, 19.1) |
|
SS/MVE |
19.2 (16.3, 23.1) |
|
SS/BVE |
29.1 (24.6, 34.9) |
|
SS/MVE(noCu) |
12.6 (10.7, 15.1) |
|
SS/BVE(noCu) |
15.9 (13.5, 19.1) |
|
|
|
|
DM = 2-site HFO model from [4] SS = 1-site HFO model MV = 1-site monodentate variable charge kaolinite model BV = 1-site bidentate variable charge kaolinite model MVE = 2-site kaolinite model with monodentate variable charge and ion exchange site MVB = 2-site kaolinite model with bidentate variable charge and ion exchange site MVE(noCu) = 2-site kaolinite model with monodentate variable charge and ion exchange site (no Cu Sorption on exchange site) MVBnoCu) = 2-site kaolinite model with bidentate variable charge and ion exchange site (no Cu Sorption on exchange site) |
|
|
Lund et al. Geochemical Transactions 2008 9:9 doi:10.1186/1467-4866-9-9 |
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