Research Article
Statistical Evaluation and Optimization of Factors Affecting the Leaching Performance of Copper Flotation Waste
Table 10
Analysis of variance for concentration of leached copper.
| | Source | DF | Seq SS | Adj SS | Adj MS | | |
| | Regression | 4 | 36208.1 | 36208 | 9052.0 | 10.05 | 0.000 | | Linear | 3 | 24297.1 | 36174 | 12057.9 | 13.39 | 0.000 | | pH | 1 | 6728.1 | 6728 | 6728.1 | 7.47 | 0.011 | | Stirring time | 1 | 16965.1 | 16965 | 16965.1 | 18.84 | 0.000 | | Temperature | 1 | 603.9 | 12481 | 12480.7 | 13.86 | 0.001 | | Square | 1 | 11911.0 | 11911 | 11911.0 | 13.23 | 0.001 | | Temperature*temperature | 1 | 11911.0 | 11911 | 11911.0 | 13.23 | 0.001 |
| | Residual error | 25 | 22512.5 | 22513 | 900.5 | | | | Lack-of-fit | 8 | 19249.3 | 19249 | 2406.2 | 12.53 | 0.000 | | Pure error | 17 | 3263.3 | 3263 | 192.0 | | |
| | Total | 29 | 58720.6 | | | | |
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