Pengaruh Rasio Suhu Air Delusi Terhadap Kadar Air Kadar Kotoran Kadar Minyak Dan Pengendapan Sludge Pada Pabrik Kelapa Sawit

Abstract

The clarification process in Palm Oil Mills (PKS) plays an important role in determining oil recovery efficiency and the quality of Crude Palm Oil (CPO) produced. This study aimed to analyze the effects of dilution water ratio and temperature, as well as their interaction, on liquid characteristics in the Underflow Continuous Settling Tank (CST) at Pagar Merbau Palm Oil Mill, with a processing capacity of 30 tons of Fresh Fruit Bunches (FFB) per hour. The study used dilution water ratios of 18%, 19%, and 20% and temperatures of 90°C, 95°C, and 100°C. Oil, water, and impurity contents were analyzed using a FOSS NIR Analyzer based on Near Infrared Spectroscopy (NIRS). Data were analyzed using analysis of variance (ANOVA), followed by Duncan Multiple Range Test (DMRT) at a 5% significance level. The results showed that dilution water ratio had a highly significant effect (P < 0.01) on oil, water, and impurity contents. Increasing the dilution water ratio from 18% to 20% decreased average oil content from 10.08% to 8.05% and impurity content from 9.07% to 5.24%, while water content increased from 80.85% to 86.70%. Dilution water temperature also had a highly significant effect (P < 0.01) on all parameters. Increasing temperature from 90°C to 100°C decreased oil content from 9.39% to 8.41% and impurity content from 8.52% to 5.31%, while increasing water content from 82.07% to 86.26%. The interaction between dilution water ratio and temperature significantly affected water content, but had no significant effect on oil and impurity contents. The combination of a 20% ratio and 100°C produced 7.80% oil, 87.50% water, and 4.67% impurities.