Research Article
Wastewater Treatment Using Wood Ash and Cement as Chemical Coagulant
Table 6
Value of dissolved oxygen after treated with different dosages of CWA.
| | No. | Sample of coagulant (g/500 ml) | Initial dissolved oxygen (mg/l) | Final dissolved oxygen (mg/l) |
| | 1 | 5 | 2.17 | 3.26 | | 2 | 7 | 2.17 | 3.95 | | 3 | 10 | 2.17 | 5.25 | | 4 | 15 | 2.17 | 5.46 | | 5 | 25 | 2.17 | 5.52 |
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