Table 7.
Analytical report of regular dye bath discharge water (dark shade).
Stage | pH | TDS (mg/l) | EC (μs/cm) | DO (mg/l) | COD (mg/l) | BOD5 (mg/l) |
---|---|---|---|---|---|---|
Bleaching | 11.3 | 2980 | 5130 | 7.65 | 1317 | 610 |
Dye bath | 11.8 | 9780 | 13820 | 2.69 | 1842 | 870 |
Bath drain | 10.7 | 4740 | 8540 | 3.76 | 1354 | 590 |
Hot Wash | 8.5 | 3620 | 4120 | 4.15 | 1017 | 460 |
Soaping 1 | 7.6 | 1910 | 1760 | 4.53 | 823 | 370 |
Soaping 2 | 7.3 | 1150 | 930 | 5.09 | 497 | 210 |