2.2Grease trap and media
There were two types of grease trap; a simple
grease trap and a modified grease trap (Fig. 1). Simple
grease trap made from plastic bucket was about 50 L of
capacity. Holes of the plastic bucket were inserted with
2 inches diameter of PVC pipes for influent and
effluent. The effluent pipe was connected to 15 cm
height above the bucket bottom and the influent pipe
was at 5 cm that is higher than effluent pipe (Fig. 1(a)).
Modified grease trap was a simple grease trap that
contained media layers for wastewater filtration. The
media types used in a modified grease trap were Mon