Coagulation Conditions Responses (removal, %)
Dosage(mg/L) pH Turbidity COD
PFS Experimental value 388 7.6 96.05 67.50
  Predicted value 388 7.6 98.10 66.80
PFPD1 Experimental value 388 7.45 97.32 67.50
  Predicted value 388 7.45 97.90 66.60
PFPD2 Experimental value 351 8.0 93.32 73.00
  Predicted value 351 8.0 94.90 75.30
PFPD3 Experimental value 419 7.64 90.35 66.50
  Predicted value 419 7.64 92.60 68.10

Table 8: Confirmation experiments at optimum conditions