OPTIMIZING PRE LIMING PH FOR EFFICIENT JUICE CLARIFICATION PROCESS IN SRI LANKAN SUGAR FACTORIES

- This study was conducted treating with Milk of Lime to reach different pH levels (T1- Initial pH, T2, T3 and T4 6.5, 7.5 8.5 respectively) determine the optimum pre-liming which could result in best cane juice clarification Sri Lankan sugar industries. The experiment design used RCBD five replicates. ANOVA followed by Duncan’s Multiple Range Test (DNMRT) were identify significant mean differences. Regression analyses carried out model variation turbidity, mud volume CaO change pH. Quadratic (R2 = 99.2 %, p <0.001) fitted explain effect on turbidity juice. Effect deposited explained cubic models R2 99.4 % (p 93.9 respectively. Among tested treatments, is selected as for improvement clarified while second best. However (370 ml) able significantly high than (270 ml). Further, amount residual Ca2+ ions at (2715 ppm) clearly lower remaining (2945 ppm). It expected obtain higher low inversion Therefore results suggest range lie around 8.5. Conducting similar using mixed extracted from factory mills 7.0 8.4 0.2 increments suggested validate