Study of Freeze-dried Chitosan Beads Encapsulating Live Lactic Acid Bacteria for Removal of Reactive Dyes
Year: 2015
Journal of Fiber Bioengineering and Informatics, Vol. 8 (2015), Iss. 1 : pp. 13–23
Abstract
Water pollution by the discharge of dye residue has been polluting the planet for decades. Chitosan is one of the natural abundant biomasses that show excellent adsorption toward colorants. Nevertheless, sophisticated chemical modifications of chitosan are inevitable to enhance physical and chemical stabilities in practical applications. In the present study, simple freeze-drying has been adopted to chitosan (CHI) beads showing good stability at low levels of pH. The results show complete decolourisation of Reactive Blue 19 (RB19) within 2 hours at pH 3 and temperature of 37 °C. The encapsulation of live bacterium Lactobacillus casei (L. casei) into chitosan beads for dyestuff removal is also evaluated. Kinetics studies show a faster initial rate of adsorption by L. casei-chitosan beads at pH 3 and temperature of 37 °C. The adsorptions partially follow the intraparticle diffusion mechanism.
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Journal Article Details
Publisher Name: Global Science Press
Language: English
DOI: https://doi.org/10.3993/jfbi03201502
Journal of Fiber Bioengineering and Informatics, Vol. 8 (2015), Iss. 1 : pp. 13–23
Published online: 2015-01
AMS Subject Headings:
Copyright: COPYRIGHT: © Global Science Press
Pages: 11
Keywords: Chitosan Beads
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Comparison between the removal of Reactive Black 5 from aqueous solutions by 3-amino-1,2,4 triazole,5-thiol and melamine grafted chitosan prepared through four different routes
Elwakeel, Khalid Z.
El-Kousy, S.
El-Shorbagy, Hadeel G.
El-Ghaffar, M.A. Abd
Journal of Environmental Chemical Engineering, Vol. 4 (2016), Iss. 1 P.733
https://doi.org/10.1016/j.jece.2015.12.015 [Citations: 59]