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Table 4 Designed operating conditions of USB reactor

From: Effect of carbon-to-nitrogen ratio on high-rate nitrate removal in an upflow sludge blanket reactor for polluted raw water pre-treatment application

Operating phase

UP1

UP2

Days

1–6

7–34

C/N (g C g−1 N)

3

2

DOC (mg L−1)

120

80

NO3-N (mg L− 1)

40

40