The MBR Book: Principles and Applications of Membrane

156 The MBR Book
Table 3.30 Biological parameters
Table 3.29 Aeration operating data
Parameter Biology Membrane
Diffuser type Fine bubble Coarse bubble
OTE per m 0.05 0.02
� 0.49
� 0.95
� 0.89
Parameter Value Unit Parameter Value Unit
V 2980 m 3 Aerobic HRT (average) 14.3 h
V an 894 m 3 Aerobic HRT (peak) 3 h
S e 0.81 g/m 3 Anoxic HRT (ave) 4.3 h
N e 0.018 g/m 3 Anoxic HRT (peak) 0.9 h
R 0 1395 kg/day R� 0 1434 N kg/day
Table 3.31 Sludge yield
Table 3.32 Membrane calculations
Parameter Value Unit
NO x 40 g/m 3
P x 654 kg/day
X 0 300 kg/day
P x � X 0 954 kg/day
Q w 119 m 3 /day
Q w/( J� netA m) 0.02 m 3 /m 3
Parameter Value Unit Parameter Value Unit
A m 9887 m 2 J net 21 LMH
Area per element 250 m 2 J net,acual 20 LMH
Actual membrane area 10 000 m 2 J� net,acual 25 N LMH
Number of elements 40 J� b 42 N LMH
K� 120 N LMH/bar J� actual 30 N LMH
Table 3.33 Membrane Operation
Parameter Value Unit Parameter Value Unit
Aeration time 0.5 h/h M A,m 139110 kg/day
Q A,m 4600 m 3 /h v c 225 kg
Q� A,m 4729 Nm 3 /h M c 0.0065 kg/m 3
SAD m 0.47 Nm 3 /(h m 2 )
SAD p 19.2 Nm 3 /m 3