of the F=M ratio for BOD was 0.21–0.98 kg BOD
(kg MLVSS)
1
day 1
corresponding to an efficiency
of 98.3–84.5. These values can help the designers in
the selection of an appropriate organic loading while
targeting for the particular removal efficiency.
Metcalf & Eddy13
reported that the values of
the BOD F=M ratio vary from 0.04 g substrate (g
biomass)
1
day 1
for extended aeration processes to
1.0 g g 1
day 1
for high rate process and at detention
times in the range of 5–7 days, the values range from
0.3–0.5 g BOD (g VSS)
1
day 1
, respectively, for
municipal wastewater with activated sludge system
treatment
13
. The values of the present study are in
line with these values.