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Akwayo, I.
Department of Chemical Engineering, Faculty of Engineering, Akwa Ibom State University, Ikot Akpaden, Akwa Ibom State, Nigeria.
Oboh, I.
Department of Chemical Engineering, Faculty of Engineering, University of Uyo, Uyo, Akwa Ibom State, Nigeria.
ABSTRACT
Discharging
effluents containing dyes into water bodies pose serious environmental problems
such as deterioration of water quality. Adsorption is an efficient method to
remove dyes from these effluents but has a challenge of high cost of adsorbent.
The adsorption of Crystal Violet (CV) dye from aqueous solution onto a low-cost
adsorbent, Jatropha tanjorensis leaf powder was investigated
using a fixed bed column. The Jatropha tanjorensis leaf powder was prepared and
characterised. Breakthrough curves were used to study the performance of the
fixed bed column by varying the initial concentration (10-50 mg/L), flowrate
(10-20 mL/min) and bed height (5-15cm). The
experimental data were analysed using three fixed-bed adsorption column models
namely, Thomas, Adams-Bohart and Yoon and Nelson column models and the results
fitted well into Thomas and Yoon and Nelson column
models with a high correlation coefficient (R2 ˃ 0.964) at different conditions. The
maximum bed capacity of 334 mg/g related to Yoon
and Nelson model was
obtained when the column bed height was kept at 15 cm, initial concentration of
30 mg/L and flow rate of 10 mL/min. The
activated Jatropha tanjorensis leaf powder was shown to be suitable adsorbent for adsorption of CV
dye using fixed-bed adsorption column.
Keywords: Bed capacity, Breakthrough curve, Dynamic adsorption model, Pores, Residence time
https://doi.org/10.33922/j.ujet_v10i2_4
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Published
Wednesday, August 21, 2024
Issue
Vol. 10 No. 2, December 2024
Article Section
GENERAL
The contents of the articles are the sole opinion of the author(s) and not of UJET.
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