The modified grease trap was able to reduce the
concentrations of SS and FOG with more than 90%
and was able to reduce the BOD concentration with
more than 80%. The results were consistent with the
report of U.S. EPA (2012) [16] which reported that the
primary wastewater treatment unit was able to remove
the pollutants in the ranges of 40 – 80% (SS), 26 –
65% (BOD), and 70 – 80% (FOG)