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Table 3

TN removal performance according to PR of bioplates and supplemental carbon and alkalinity

TN removal performance (TN g/m2/d)
PR addition3.2% EMMC6.5% EMMC9.1% EMMC11.4% EMMC
No 25 ± 0.9 8.2 ± 1.7 6.3 ± 1.0 6.5 ± 0.3 
Methanol 32 ± 5.8 15 ± 2.1 8.4 ± 0.4 8.4 ± 0.2 
Methanol and Sodium carbonate 31 ± 0.6 13 ± 1.5 8.5 ± 0.9 6.5 ± 1.4 
TN removal performance (TN g/m2/d)
PR addition3.2% EMMC6.5% EMMC9.1% EMMC11.4% EMMC
No 25 ± 0.9 8.2 ± 1.7 6.3 ± 1.0 6.5 ± 0.3 
Methanol 32 ± 5.8 15 ± 2.1 8.4 ± 0.4 8.4 ± 0.2 
Methanol and Sodium carbonate 31 ± 0.6 13 ± 1.5 8.5 ± 0.9 6.5 ± 1.4 

Conditions: MLSS = 1,500–2,500 mg/L, DO = 4–6 mg/L, aeration by alternate 1 h on/off, HRT = 6 h.

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