This study evaluated the effectiveness of three (3) different scale inhibitors from locally sourced materials, raffia palm gum exudates and orange mesocarp in reducing the levels of various ion, while the performance of these materials was compared against a commercial grade inhibitor. The three different scale inhibitors were evaluated for their effectiveness in reducing the levels of various ions at different concentrations. A GC-MSD and GC-FID analysis was done on the raffia exudate and commercial scale inhibitors The GC-FID chromatograms indicated that the raffia exudate n-alkanes carbon atom ranged from C17-C36 while the commercial carbon atoms ranged from C14-C40 and the GC MSD indicated that the samples are predominantly n-alkanes at MZ 57 but the commercial had presence of Terpenes at MZ 191 (Biomarker which is resistance to degradation at 32mins). The GCMSD of the orange mesocarp shows major compound at RT 2.619 16.78% acetic acid, RT 6.328 30.06% butyl esther and RT 9.272 8.71% Hexadecenoic acid. The local scale inhibitor was more effective in reducing the levels of magnesium ion, and the Mesocarp orange scale inhibitor was relatively effective in reducing the levels of bicarbonate and calcium ions. The choice of scale inhibitor will depend on the specific water system and the type and level of scaling that needs to be prevented.

Keywords : Raffia gum; orange mesocarp; calcium carbonate; scale.