From: Nanosilver-decorated nanographene and their adsorption performance in waste water treatment
S. no | Water quality parameters | Textile effluent | ||
---|---|---|---|---|
Before treatment | After treatment with GA | After treatment with GAM | ||
1. | Temperature (°C) | 29.9 | 29.9 | 29.9 |
2. | Colour, hazen | 158 | 7 | 17 |
3. | Odour | Decaying fruit flavour | No characteristic odour | No characteristic odour |
4. | pH at 27 °C | 9.10 | 9.25 | 8.19 |
5. | Turbidity, NTU | 51 | 3 | 8 |
6. | Total alkalinity, as CaCO3 (mg/l) | 620 | 1220 | 160 |
7. | Total hardness, as CaCO3 (mg/l) | 750 | 550 | 110 |
8. | Biochemical oxygen demand, (mg/l), 27 °C, 3 days | 1334 | 407 | 79.5 |
9. | Chemical oxygen demand (COD) (mg/l) | 3625 | 897 | 274 |
10. | Chlorides, as Cl− (mg/l) | 700 | 550 | 170 |
11. | Total dissolved solids (mg/l) (evaporation method) | 2270 | 2130 | 560 |