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Table 2

Experimental results for offline anoxic batch tests (n = 19) followed by an aerobic phase (n = 13)

Anoxic + aerobic experimental results
Anoxic phase
Aerobic phase
P/PHAGlyc/PHAP/PHAGlyc/PHA
P-mol/C-molC-mol/C-molP-mol/C-molC-mol/C-mol
PT1 summer
(nAX = 4, nAX+AE = 2) 
0.7 ± 0.2
(0.53–0.83) 
0.7 ± 0.5
(0.31–1.26) 
1.7 ± 0.7
(1.20–2.17) 
0.9 ± 0.2
(0.77–1.06) 
PT1 winter
(nAX = 2, nAX+AE = 1) 
0.7 ± 0.5
(0.26–1.04) 
0.3 ± 0.1
(0.28–0.40) 
0.9
(n = 1, 0.86) 
0.3
(n = 1, 0.28) 
PT2 summer
(nAX = 2, nAX+AE = 2) 
0.0 ± 0.0
(0.03–0.05) 
0.1
(n = 1, 0.13) 
0.3 ± 0.0
(0.31–0.32) 
0.1
(n = 1, 0.10) 
PT2 winter
(nAX = 2, nAX+AE = 2) 
0.2 ± 0.0
(0.19–0.25) 
0.1 ± 0.0
(0.05–0.10) 
0.2 ± 0.0
(0.15–0.19) 
0.5 ± 0.1
(0.38–0.57) 
DK1 winter
(nAX = 4, nAX+AE = 3) 
0.7 ± 0.2
(0.59–1.00) 
0.5 ± 0.6
(0.02–1.36) 
1.3 ± 0.2
(1.05–1.42) 
0.7 ± 0.2
(0.52–0.90) 
DK2 winter
(nAX = 3, nAX+AE = 2) 
0.7 ± 0.3
(0.50–1.05) 
0.3 ± 0.1
(0.24–0.39) 
0.9 ± 0.1
(0.81–0.90) 
0.5 ± 0.2
(0.36–0.59) 
DK3 winter
(nAX = 2, nAX+AE = 1) 
1.0 ± 0.1
(0.92–1.07) 
0.5 ± 0.6
(0.06–0.88) 
1.4
(n = 1, 1.38) 
1.0
(n = 1, 1.04) 
PAO model 0.30b 0.41b 0.41a 0.42a 
Anoxic + aerobic experimental results
Anoxic phase
Aerobic phase
P/PHAGlyc/PHAP/PHAGlyc/PHA
P-mol/C-molC-mol/C-molP-mol/C-molC-mol/C-mol
PT1 summer
(nAX = 4, nAX+AE = 2) 
0.7 ± 0.2
(0.53–0.83) 
0.7 ± 0.5
(0.31–1.26) 
1.7 ± 0.7
(1.20–2.17) 
0.9 ± 0.2
(0.77–1.06) 
PT1 winter
(nAX = 2, nAX+AE = 1) 
0.7 ± 0.5
(0.26–1.04) 
0.3 ± 0.1
(0.28–0.40) 
0.9
(n = 1, 0.86) 
0.3
(n = 1, 0.28) 
PT2 summer
(nAX = 2, nAX+AE = 2) 
0.0 ± 0.0
(0.03–0.05) 
0.1
(n = 1, 0.13) 
0.3 ± 0.0
(0.31–0.32) 
0.1
(n = 1, 0.10) 
PT2 winter
(nAX = 2, nAX+AE = 2) 
0.2 ± 0.0
(0.19–0.25) 
0.1 ± 0.0
(0.05–0.10) 
0.2 ± 0.0
(0.15–0.19) 
0.5 ± 0.1
(0.38–0.57) 
DK1 winter
(nAX = 4, nAX+AE = 3) 
0.7 ± 0.2
(0.59–1.00) 
0.5 ± 0.6
(0.02–1.36) 
1.3 ± 0.2
(1.05–1.42) 
0.7 ± 0.2
(0.52–0.90) 
DK2 winter
(nAX = 3, nAX+AE = 2) 
0.7 ± 0.3
(0.50–1.05) 
0.3 ± 0.1
(0.24–0.39) 
0.9 ± 0.1
(0.81–0.90) 
0.5 ± 0.2
(0.36–0.59) 
DK3 winter
(nAX = 2, nAX+AE = 1) 
1.0 ± 0.1
(0.92–1.07) 
0.5 ± 0.6
(0.06–0.88) 
1.4
(n = 1, 1.38) 
1.0
(n = 1, 1.04) 
PAO model 0.30b 0.41b 0.41a 0.42a 

Results shown are averages rounded to one decimal (n = number of tests) with a standard deviation and the range of values to illustrate the spread of the data.

aAccording to Smolders et al. (1995).

bAccording to Kuba et al. (1996b).

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