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Fixed-Bed Adsorption Column Studies for the Removal of Methyl Orange from Water Using Polyethyleneimine-Graphene Oxide Polymer Nanocomposite Beads

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Abstract:

Continuous fixed-bed column studies were performed using nanocomposite beads made up of chitosan, polyethyleneimine, and graphene oxide as adsorbents for the removal of methyl orange (MO) in water. The effects of different operating parameters such as initial MO concentration (5, 10, and 15 ppm), bed height (10, 17.5, and 25 cm), and flow rate (27, 43, and 58 mL/min) were investigated using an upward-flow fixed-bed column set-up. The breakthrough curves generated were fitted with Adams-Bohart, Thomas, Yoon-Nelson, and Yan et al. models. The results showed that Yan et al. model agreed best with the breakthrough curves having an R2 as high as 0.9917. Lastly, design parameters for a large-scale adsorption column were determined via scale-up approach using the parameters obtained from column runs.

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Periodical:

Key Engineering Materials (Volume 891)

Pages:

31-36

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.891.31

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Online since:

July 2021

Authors:

Jirah Emmanuel T. Nolasco, Camille Margaret S. Alvarillo, Joshua L. Chua, Ysabel Marie C. Gonzales, Jem Valerie D. Perez*

Keywords:

Adsorption, Breakthrough Curve, Fixed-Bed Column, Methyl Orange, Nanocomposite Beads

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© 2021 Trans Tech Publications Ltd. All Rights Reserved

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