Table 4 Ranges of COD analysis obtained at the 13 study sites with their percentage reductions.
Effluent | Original WW COD | COD after filtration | COD after application of Nanomaterials and filtration | % COD reduction | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
BioMag-CMC | MagNPs-CMC | BioMag | MagNPs | BioMag-CMC | MagNPs-CMC | BioMag | MagNPs | |||
PCUWA | 7271 | 7020 | 3558 | 2702 | 3370 | 3118 | 51.07 | 62.84 | 53.66 | 57.12 |
TUWK | 3712 | 3698 | 2015 | 1325 | 1947 | 2315 | 45.71 | 64.3 | 47.55 | 37.63 |
SUWK | 257 | 212 | 105 | 95 | 154 | 128 | 59.04 | 63.04 | 40.09 | 50.21 |
MUWA | 1570 | 1450 | 498 | 462 | 415 | 526 | 68.29 | 70.52 | 73.57 | 66.5 |
PTWK | 166 | 157 | 116 | 93 | 104 | 142 | 30.12 | 43.97 | 37.35 | 14.46 |
TUKW | 4635 | 4619 | 2335 | 2190 | 2295 | 2537 | 49.62 | 52.75 | 50.49 | 45.26 |
BTWR | 6244 | 5860 | 3173 | 2482 | 2218 | 2593 | 49.18 | 60.25 | 64.48 | 58.47 |
PUWA | 5909 | 5734 | 2311 | 2137 | 3018 | 3570 | 60.89 | 63.83 | 48.93 | 39.58 |
PTK | 969 | 886 | 316 | 341 | 488 | 380 | 67.37 | 64.82 | 49.66 | 60.8 |
FTWR | 6433 | 6372 | 2614 | 3016 | 2950 | 3694 | 59.37 | 53.12 | 54.14 | 42.58 |
FCTWE | 2313 | 2247 | 810 | 789 | 850 | 753 | 64.98 | 65.9 | 63.26 | 67.46 |
CMTWM | 170 | 162 | 97 | 69 | 105 | 111 | 42.94 | 59.41 | 38.24 | 34.71 |
CTWA | 610 | 595 | 215 | 187 | 340 | 301 | 64.75 | 68.34 | 44.26 | 50.66 |
