100
7 Treatability Study of Municipal Wastewater …
Table. 7.2 (continued)
Phase
Batch run
no
Volume of
municipal
wastewater
feed (l)
MLSS
(mg/L)
Batch
period (h)
pH
COD
(mg/l)
BOD
(mg/l)
18
5
4400
0
7.1
92
69
24
21
15
19
5
4575
0
7.7
88
62
24
14
10
20
5
4230
0
7.7
93
70
24
26
21
21
5
4335
0
7.2
64
51
24
12
10
300
250
200
150
100
50
0
0 24 48 72 96 120 144 168 192 216 240 264 288 312 336 360 384
Time(hr)
IniƟal COD
Final COD
COD (mg/l)
Fig. 7.2 Variation of initial and final COD profile in the periodic batch study in Phase A
120
100
80
60
40
20
0
0
2 4
4 8
7 2
9 6
Time(hr)
IniƟal COD
Final COD
COD (mg/l)
Fig. 7.3 Variation of initial and final COD profile in the periodic batch study in Phase B