N2O production in a single stage nitritation/anammox MBBR process

090925 NH₄-N
090925 Prolonged unaerated period NH₄-N
300
250
250
200
NH₄-N (mg/l)
200
150
100
50
NH₄-N in
(mg/l)
NH₄-N out
(mg/l)
NH₄-N (mg/l)
150
100
50
NH₄-N in
(mg/l)
NH₄-N out
(mg/l)
0
0
0 20 40 60
0 50 100 150 200
Time (min)
Time (min)
Figure D13.
Figure D16.
090925 NOx-N
090925 Prolonged unaerated period NOx-N
70
70
60
60
NOx-N (mg/l)
50
40
30
20
10
NOx-N in
(mg/l)
NOx-N out
(mg/l)
NOx-N (mg/l)
50
40
30
20
10
NOx-N in
(mg/l)
NOx-N out
(mg/l)
0
0
0 20 40 60
0 50 100 150 200
Time (min)
Time (min)
Figure D14.
Figure D17.
DO, NO₂-N (mg/l)
10
9
8
7
6
5
4
3
2
1
0
090925 DO, NO₂-N biosensor (mg/l)
NO₂-N
biosensor
(mg/l)
DO (mg/l)
DO, NO₂-N (mg/l)
8
7
6
5
4
3
2
1
0
090925 Prolonged unaerated period DO, NO₂-N
biosensor (mg/l)
NO₂-N
biosensor
(mg/l)
DO (mg/l)
0 20 40 60
0 50 100 150 200
Time (min)
Time (min)
Figure D15.
Figure D18.
79