Chitin Beads from Peneaus sp. Shells as a Biosorbent for Methylene Blue Dye Removal
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Department of Biotechnology, Rajalakshmi Engineering College, Thandalam, Chennai, TamilNadu, India
Department of Biotechnology, Prathyusha Engineering College, Aranvoyalkuppam, Tiruvallur, TamilNadu, India
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
Corresponding author
M. Millicent Mabel   

Rajalakshmi Engineering College, Thandalam, 600054 Chennai, TamilNadu, India
Pol. J. Environ. Stud. 2019;28(4):2253-2259
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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