| Conditions |
Decolorization % 24 hrs |
Decolorization % 48 hrs |
Decolorization % 72 hrs |
| pH |
|
|
|
| 3 |
20.34±1.34 |
23.08±1.56 |
22.22±0.45 |
| 4 |
25.34±2.34 |
27.45±1.34 |
25.58±1.23 |
| 5 |
33.78±5.02 |
50.68±4.11 |
75.79±0.45 |
| 6 |
56.99±19.34 |
79.21±2.67 |
80.45±1.44 |
| 7 |
88.95±1.29 |
87.22±0.6 |
94.91±0.66 |
| 8 |
51.98±2.76 |
61.65±0.52 |
69.77±0.86 |
| 9 |
22.01±1.91 |
28.28±0.72 |
36.75±0.54 |
|
| |
| Conditions |
Decolorization % 24 hrs |
Decolorization % 48 hrs |
Decolorization % 72 hrs |
| Temperature |
|
|
|
| 20 |
43.67±2.3 |
57.47±0.23 |
56.11±1.15 |
| 25 |
46.66±0.65 |
60.17±1.77 |
69.31±0.29 |
| 30 |
91.98±1.46 |
90.43±0.8 |
92.27±0.7 |
| 35 |
86.20±1.3 |
88.06±0.32 |
87.42±2.1 |
| 45 |
60.45±1.67 |
62.23±1.67 |
61.40±1.67 |
| 50 |
41.33±1.33 |
52.88±0.88 |
50.66±1.33 |
|
| |
| Conditions |
Decolorization % 24 hrs |
Decolorization % 48 hrs |
Decolorization % 72 hrs |
| Dye concentration(mg/l) |
|
|
|
| 100 |
92.72±0.34 |
92.42±1.02 |
92.93±1.36 |
| 250 |
85.92±0.33 |
85.58±0.54 |
83.46±0.27 |
| 500 |
82.64±0.34 |
80.94±3.07 |
80.25±1.53 |
| 750 |
74.38±0.44 |
74.26±0.58 |
76.92±3.5 |
| 1000 |
70.11±0.42 |
71.04±0.99 |
70.28±0.85 |
|
| |
| Conditions |
Decolorization % 24 hrs |
Decolorization % 48 hrs |
Decolorization % 72 hrs |
| Static |
95.13±0.80 |
90.13±0.34 |
92.17±1.23 |
| shaking |
65.93±1.36 |
64.25±1.53 |
62.24±1.45 |
|
| Table 2: Effect of different physicochemical parameters on decolorization: (NB
medium, incubated at various time intervals with different temperature, pH, and
oxygen condition). |
