ORIGINAL RESEARCH
Chitin Beads from Peneaus sp. Shells as
a Biosorbent for Methylene Blue Dye Removal
| 1 | Department of Biotechnology, Rajalakshmi Engineering College, Thandalam, Chennai, TamilNadu, India |
| 2 | Department of Biotechnology, Prathyusha Engineering College, Aranvoyalkuppam, Tiruvallur, TamilNadu, India |
CORRESPONDING AUTHOR
Submission date: 2017-12-08
Final revision date: 2018-04-18
Acceptance date: 2018-04-23
Online publication date: 2019-01-23
Publication date: 2019-03-01
Pol. J. Environ. Stud. 2019;28(4):2253–2259
KEYWORDS
TOPICS
ABSTRACT
The adsorption potential of chitin, a polysaccharide found in the exoskeleton of shrimp, was
evaluated using methylene blue cationic dye. Batch adsorption studies were done using a column by
optimized bed height of 22.2 cm and retention time of 90 min. The alginate:chitin ratio was taken as
1:07 with 80 mgl-1initial dye concentration, and pH was maintained at 8. There was 90% adsorption
of dye. Langmuir and Freundlich isotherms were studied along with the adsorption kinetics. The plots
indicated that the data fitted Langmuir isotherm. The R2 is greater for pseudo second-order kinetics
and Weber and Morris’ model on intra particle diffusion best fit this adsorption by chitin.
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