PALM KERNEL SHELL ASH: THE EFFECT OF WEIGHT AND STIRRING DURATION ON WASTE PALM COOKING OIL QUALITY

This study aims to investigate the effect of variations Palm Kernel Shell Ash (PKSA) in weight and stirring duration on quality waste palm cooking oil (WPCO). PKSA is from use (PKS) as fuel factories. The method used this a laboratory experiment with improve WPCO quality. was characterized using XRF, FTIR, XRD. parameters analyzed were color, water content, free fatty acid (FFA). standard for comparison SNI 7709-2019. results showed that treatment category S3, where 20 g 90 min, decreased parameter value according requirements. improved can be various purposes, including biodiesel, fertilizer poultry feed.