Parameter

Aerobic MBR [6] [64]

AnMBR [6] [65]

Wastewater

Molasses based synthetic wastewater

COD:N:P

100:6.8:1.3

100:5:1

HRT (h)

8

32 - 48

OLR (kg COD/m³ d)

25

8 - 12

Feed COD (g/L)

11

10 - 16

Temperature (˚C)

47

60

55

COD removal %

83

92

83

Nitrogen removal %

35

39

No major removal

Ammonia removal %

59

62

No major removal

Remarks

Ammonia stripping was reported as a major ammonia removal mechanism at elevated temperatures with high rate aeration in an open reactor.

Ammonia accumulation in the closed anaerobic reactors