Table 3 Treatment of CLWW using different concentrations of chemical coagulants
From: Treatment of laundry wastewater using extracellular polymeric substances (EPS)
Coagulant | Coagulant dose (mg/L) | Removal (%) | |||
|---|---|---|---|---|---|
Turbidity | TSS | TS | COD | ||
Alum | 100 | 21.82 | 6.17 | 7.36 | 8.17 |
300 | 33.64 | 21.33 | 31.99 | 22.98 | |
600 | 65.45 | 69.67 | 44.53 | 33.68 | |
900 | 94.36 | 76.33 | 65.92 | 44.35 | |
1200 | 98.09 | 84.67 | 79.39 | 63.32 | |
1500 | 98.55 | 94.67 | 85.14 | 80.98 | |
2000 | 99.18 | 98.00 | 91.33 | 85.10 | |
CaCl2 | 100 | 12.73 | 7.67 | 7.68 | 6.37 |
300 | 20.00 | 11.00 | 12.04 | 11.57 | |
600 | 24.36 | 19.17 | 21.13 | 19.13 | |
900 | 26.36 | 24.83 | 27.09 | 26.95 | |
1200 | 34.55 | 27.83 | 29.97 | 36.92 | |
1500 | 36.18 | 29.17 | 36.09 | 42.60 | |
2000 | 25.36 | 20.67 | 32.72 | 41.29 | |
FeSO4 | 100 | 14.09 | 12.67 | 9.60 | 6.23 |
300 | 23.36 | 22.67 | 20.39 | 18.47 | |
600 | 78.73 | 52.67 | 44.94 | 25.29 | |
900 | 83.36 | 68.83 | 53.95 | 31.37 | |
1200 | 89.64 | 76.17 | 60.51 | 36.75 | |
1500 | 89.91 | 77.17 | 65.85 | 40.19 | |
2000 | 91.09 | 78.67 | 68.09 | 47.80 | |