Starch nanoparticle (SNP) bioflocculant from breadfruit (Artocarpus altilis) for the treatment of river water
Authors: Joy Anne T. Tabangcora
Abstract
This study aimed to develop a biodegradable flocculant from breadfruit starch (Artocarpus altilis) as an eco-friendly alternative to chemical flocculants for river water treatment. Breadfruit starch was isolated, acetylated using acetic anhydride, and ultrasonicated at 140 W for 75 minutes to produce Starch Nanoparticle (SNP) bioflocculant, reducing particle size from 6,270.80 nm to 407.20 nm. The acetyl percentage and degree of substitution of the synthesized SNP bioflocculant were 9.78% and 0.41, respectively. Jar test experiments revealed that the 9 mL dose of 0.1 wt. % SNP bioflocculant was the minimum effective amount. A T-test further reveals that the SNP bioflocculant is more effective than the commercial flocculant in color removal, while both perform similarly in turbidity and TSS reduction. The SNP bioflocculant shows promise as an effective, eco-friendly alternative for water treatment.
Keywords
acetylation, flocculant, potable, turbidity, ultrasonic