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Title | Adsorption of crystal violet on rice husk activated carbon |
Authors |
Salahudeen, N.
Alhassan, A. |
ORCID | |
Keywords |
process innovation adsorption isotherm rice husk activated carbon crystal violet energy efficiency |
Type | Article |
Date of Issue | 2022 |
URI | https://essuir.sumdu.edu.ua/handle/123456789/87437 |
Publisher | Sumy State University |
License | Creative Commons Attribution 4.0 International License |
Citation | Salahudeen N., Alhassan A. (2022). Adsorption of crystal violet on rice husk activated carbon. Journal of Engineering Sciences, Vol. 9(1), pp. F11-F15, doi: 10.21272/jes.2022.9(1).f2 |
Abstract |
The need to develop effective technology for the treatment of liquid effluent of dye-intensive industries
such as textile, rubber, paint, and printing is synonymous with the need to save the life-threatening risks posed by these
carcinogenic and mutagenic pollutants on human and aquatic lives. Isotherms of adsorption of crystal violet (CV) on
activated carbon (AC) synthesized from rice husk are presented herewith to elucidate the mechanism of the adsorption
process of crystal violet dye contaminated water on rice husk activated carbon. AC was synthesized from rice husk via
a phosphoric acid activating agent at low temperatures. Langmuir, Freundlich, Temkin and Dubinin–Radushkevich (DR) isotherm studies were employed. The mean square values for Langmuir, Freundlich, Temkin and D-R models were
0.98, 0.91, 0.94, and 0.63, respectively. Analysis of the isotherms of the adsorption of crystal violet sorbate on the
synthesized rice husk sorbent suggested that the adsorption process proceeded via a homogeneous monolayer
mechanism. Langmuir isotherm gave the best fit of the adsorption process. Langmuir isotherm constant was –1.40 l/mg,
and the equilibrium adsorption capacity was 13.53 mg/g. |
Appears in Collections: |
Journal of Engineering Sciences / Журнал інженерних наук |
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Salahudeen_jes_1_2022.pdf | 290.9 kB | Adobe PDF | 291595426 |
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