Blending of waste biomass for cost-effective chitosan-based biosorbents for removal of reactive dye from aqueous solution

Chitosan (CS) is an attractive natural and biodegradable cationic adsorbent material for treatment of anionic pollutants. For chitosan-based sorbents to be practicable, their price should low. This study aims at cost reduction sorbent through making composite chitosan beads with industrial fermentation waste biomass Escherichia coli. The maximum content maintaining stable bead structure was approximately 70.4% (w/w). adsorption properties the bacterial biomass-chitosan (BCCB) were evaluated using dye material, Reactive Yellow 2 (RY 2). At pH 4, uptake BCCB 679.13±23.76 mg/g, whereas those pristine CS (CSB) raw E. coli 934.71±50.97 mg/g 200.77±4.51 respectively. However, considering bound amount RY2 molecules in CS-based beads, showed 2.1 times higher sorption capacity than that CSB. In addition, process expected shortened by 58% compared Therefore, this suggests compositing can a practical way design cost-effective adsorbents.