Research Article
Improving the Efficiency of a Coagulation-Flocculation Wastewater Treatment of the Semiconductor Industry through Zeta Potential Measurements
Table 2
Comparison of the dose and optimal flocculation windows.
| Treatment system | pH | Optimal dose (ppm) | Flocculation window (ppm) |
| (A) Single flocculation | 5 | 33.5 | 33.5 to 40.2 | (B) Single flocculation | 7 | 15.6 | 15.6 to 20.1 | (C) NIPECs flocculation | 7 | 23.7 | 23.7 to 35.6 | (D) DUAL coagulation | 9 | 162 | 26.4 to 67 | Flocculation | 26.4 |
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