Time (h)
0
24
48
72
96
P-value
TSS (g/l)
1.22±0.02
2.01±0.32
3.77±0.22
4.82±0.18
4.84±0.2
<0.001
pH
5.01±0.2
4.590±0.045
3.37±0.049
3.12±0.014
3.22±0.035
0.002
COD (g/l)
13.7 ± 2
9.47±0.58
6.25±0.94
5.29±0.28
4.75 ±0.17
0.003
OD at 390 nm
2.4±0.12
2.1±0.01
1.39±0.02
0.93±0.06
0.91±0.11
0.003
Polyphenols
(mg gallic acid/l)
496±10.3
426±8
307±11
262±15
256±9
<0.001
Table 5:
Time course of biomass, pH, residual COD, residual OD
390
and polyphenols during the pretreatment of TOPW by
Aspergillus niger
.
