|
Parameter
|
Unit
|
R1
|
R2
|
R3
|
|---|
|
t
|
H
|
4
|
4
|
4
|
|
OLR
|
kg COD/m3/day
|
3.71 ± 0.04
|
1.87 ± 0.04
|
0.91 ± 0.04
|
|
NLR
|
kg NH4–N/m3/day
|
0.22 ± 0.02
|
0.22 ± 0.02
|
0.22 ± 0.02
|
|
COD:N ratio
|
–
|
100:6
|
100:12
|
100:24
|
|
Influent COD
|
mg/L
|
1416 ± 14
|
712 ± 14
|
346 ± 14
|
|
Influent NH4–N
|
mg/L
|
85 ± 6
|
85 ± 6
|
85 ± 6
|
|
ECOD
|
%
|
98.3 ± 1.1
|
96.0 ± 1.4
|
86.3 ± 0.6
|
|
ENH4
|
%
|
100
|
100
|
100
|
|
ETN
|
%
|
65.5 ± 7.2
|
38.1 ± 16.4
|
0.4 ± 19.0
|
|
Effluent SS
|
mg/L
|
301 ± 98
|
133 ± 28
|
74 ± 13
|
- Cycle length (t); organic and nitrogen loading rate (OLR, NLR); COD:N ratio; influent COD and NH4–N concentration; removal efficiency (E) of COD, NH4 and TN during the last 4 weeks; average effluent suspended solids concentration (SS)
