Research Article
Modeling the Sorption of Ni2+ and Co2+ on Saprist Peat Using the Response Surface Methodology
Table 5
Two solutions for Ni2+ and Co2+ uptake by multiple response optimization.
| | Constraints and limits | Goal | Solutions |
| | Conc., 50–200 mg/L | In range | ~100% Ni uptake at 50 mg/L conc. | | Peat dose, 2–40 g/L |
Minimize | 14 g/L peat dose and pH 5.3 | | pH 4.5–pH 6.5 | In range | ~94% Co removed at 50 mg/L, | | | | 27 g/L peat dose and pH 6.5 | | Conc., 50–200 mg/L | In range | ~100% Ni uptake at 200 mg/L conc. | | Peat dose, 2–40 g/L | Minimize | 28 g/L peat dose and pH 4.9 | | pH 4.5–pH 6.5 | In range | ~90% Co uptake at 104 mg/L conc., | | | | 30 g/L peat and pH 6.5 |
|
|
