Table 5 Conventional ABR operating conditions.

From: The performance and archaeal community shifts in a modified anaerobic baffled reactor treating sweet potato starch wastewater at ambient temperatures

Stage

Stage I

Stage II

Stage III

Stage IV

Days

1–24

25–58

59–137

138–172

Temperature (°C)

30.4 ± 0.15

28.4 ± 0.16

18.0 ± 0.4

10.1 ± 0.4

pH

11.5

11.5

11.5

11.5

HRT (d)

2

2

1.5

0.75

COD (mg/L)

3139 ± 1559

10424 ± 1848

6199 ± 2685

5617 ± 636

OLR (kg COD/(m3d))

1.37 ± 0.76

4.16 ± 0.65

17.98 ± 4.22

10.1 ± 2.25

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