unit includes fat traps, influent pit, grit chamber, and
two balancing tanks with mechanical aerator. In the
balancing tank, a part of recycle sludge is mixed and
aeration is carried out, which results in some degra-
dation of organic material present in the wastewater.
Therefore, wastewater from the outlet of the balancing
tank was not used for this study. So the sample was
collected from the outlet of the fat trap.