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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