Abstract

This study aims to investigate the properties ofgrease residue from grease trap waste water treatment and todetermination the performance of candles from grease residues.Grease residue from grease trap wastewater treatment systemat Canteen in Valaya Alongkorn Rajabhat University Under theRoyal Patronage. Grease processing at the source such ashouses and restaurants is unsuitable for common types ofpollutants, which are relatively small. The average amount ofgrease residue from the grease trap was 200 grams / day. Theaverage household was 2.6 kilograms per day. The resultsshowed that the physical properties of stored grease for morethan 2 weeks were gray, high viscosity and foul odor. For newgrease, is yellow light, soft texture, and odorless. This study usesa new fat density of 1.002 g/mL, the moisture content 58.04%,and the heating value was 8148.63 kcal / kg. The physicalproperties of the candles are produced at an appropriate ratioof 3: 1 (paraffin: grease residue). In comparison withconventional candles, the candles last for 2 hours and 10minutes, but the candles are 3: 1 for 2 hours and 8 minutes, and15 minutes with smoke.