Research Article
Performance Optimization of Chemical and Green Coagulants in Tannery Wastewater Treatment: A Response Surface Methodology Approach
Table 7
Predicted and experimental values at optimal process conditions.
| Variables | Responses | Dosage, (g/L) | pH, | COD removal, (%) | TSS removal, (%) | SVI, (mL/g) | Predicted | Experimental | Predicted | Experimental | Predicted | Experimental |
| Cassava starch | 2.76 | 3.17 | 37.25 | 37.01 | 73.95 | 73.61 | 14.80 | 15.01 |
| Orange peel powder | 5.16 | 3.74 | 17.97 | 17.72 | 66.08 | 65.79 | 19.87 | 19.44 |
| Alum | 11.6 | 6.09 | 38.51 | 38.85 | 76.05 | 76.36 | 29.57 | 29.24 |
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