|
Treatment method
|
Capacity(in 1000 cu m/day)
|
Total
|
|
5
|
5 to 10
|
10 to 50
|
50 to 100
|
100 to 500
|
500 or more
|
|
simple
|
sedimentation tank
|
1
|
|
1
|
|
|
|
2
|
|
Biological treatment
(Standard)
|
Conventional
|
39
|
57
|
305
|
118
|
127
|
15
|
661
|
|
Step aeration
|
1
|
|
9
|
10
|
7
|
2
|
29
|
|
Oxygen
|
1
|
1
|
4
|
1
|
4
|
|
11
|
|
Extended aeration
|
18
|
5
|
2
|
|
|
|
25
|
|
Oxidatation ditch
|
526
|
71
|
29
|
|
|
|
626
|
|
Contact stabilization
|
1
|
|
|
|
|
|
1
|
|
Sequencing batch reactar
|
58
|
5
|
4
|
|
|
|
67
|
|
High rate biological oxidation
|
|
|
6
|
|
1
|
|
7
|
|
Rotating biological contactor
|
12
|
4
|
6
|
1
|
|
|
23
|
|
High rate tricking filter
|
|
2
|
2
|
|
|
|
4
|
|
Fixed oxidation
|
24
|
|
|
|
|
|
24
|
|
Aerobic filter
|
23
|
1
|
|
|
|
|
24
|
|
AO filter
|
12
|
|
|
|
|
|
12
|
|
Others
|
4
|
1
|
6
|
5
|
5
|
|
21
|
|
Biological treatment
(High grade)
|
Nitrification denitrification
|
4
|
1
|
2
|
|
6
|
|
13
|
|
Endogenous denirifications
|
3
|
|
|
|
|
|
3
|
|
A2O
|
1
|
1
|
5
|
|
2
|
|
9
|
|
AO
|
12
|
2
|
13
|
6
|
22
|
5
|
60
|
|
Total
|
740
|
151
|
394
|
141
|
174
|
22
|
1,622
|