Table 2 Model summary statistics and ANOVA of both Cobalt(II) and MB biosorption, using the biomass of Sargassum latifolium as affected by the tested factors.
Model summary statistics | |||||
|---|---|---|---|---|---|
Indicator | Cobalt(II) biosorption, % | MB biosorption, % | |||
Standard deviation | 1.2168 | 1.0283 | |||
R2 | 0.9642 | 0.9932 | |||
Adjusted-R2 | 0.9419 | 0.9890 |
ANOVA for means of Cobalt(II) biosorption, % | |||||
|---|---|---|---|---|---|
Source | Freedom degree | Sum of square | Mean square | F-value | P-value |
Alga biomass (%) | 2 | 535.8 | 267.9 | 181.0 | 0.000* |
pH | 2 | 14.7 | 7.3 | 5.0 | 0.021* |
Time (min) | 2 | 68.6 | 34.3 | 23.2 | 0.000* |
Initial cobalt (mg/L) | 2 | 14.2 | 7.1 | 4.8 | 0.023* |
Initial MB (mg/L) | 2 | 5.5 | 2.7 | 1.9 | 0.190 |
Residual error | 16 | 23.7 | 1.5 | ||
Total | 26 | 662.6 | |||
ANOVA for means of MB biosorption, % | |||||
Alga biomass (%) | 2 | 1881.0 | 940.5 | 889.5 | 0.000* |
pH | 2 | 3.7 | 1.9 | 1.8 | 0.203 |
Time (min) | 2 | 19.9 | 9.9 | 9.4 | 0.002* |
Initial cobalt (mg/L) | 2 | 3.9 | 2.0 | 1.9 | 0.187 |
Initial MB (mg/L) | 2 | 564.8 | 282.4 | 267.1 | 0.000* |
Residual error | 16 | 16.9 | 1.1 | ||
Total | 26 | 2490.3 | |||
