Research Article
Modelling of Water Quality: An Application to a Water Treatment Process
Table 4
Variables selected for turbidity using multilayer perceptrons.
| Round | Variables | Correlation coefficient (C) |
| 1 | Aluminium dose | 0.56 | 2 | Intake from the pikkala reservoir | 0.66 | 3 | Turbidity of raw water | 0.70 | 4 | Proportion of Lake Humaljärvi/Pikkala reservoir water intake | 0.75 | 5 | Water temperature | 0.75 | 6 | KMnO4 of raw water | 0.76 | 7 | Flocculation pH | 0.77 | 8 | Intake from Lake Humaljärvi | 0.78 | 9 | KMnO4 of raw water | 0.76 | 10 | pH of raw water | 0.77 |
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