Adsorption of Crystal Violet on Rice Husk Activated Carbon | Journal of Engineering Sciences

Adsorption of Crystal Violet on Rice Husk Activated Carbon

Author(s): Salahudeen N.*, Alhassan A.

Affiliation(s): Department of Chemical and Petroleum Engineering, Bayero University, Gwarzo Rd, PMB 3011, Kano, Nigeria

*Corresponding Author’s Address: [email protected]

Issue: Volume 9, Issue 1 (2022)

Submitted: December 17, 2021
Accepted for publication: March 18, 2022
Available online: March 22, 2022

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

DOI: 10.21272/jes.2022.9(1).f2

Research Area:  CHEMICAL ENGINEERING: Processes in Machines and Devices

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 (D-R) 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.

Keywords: process innovation, adsorption isotherm, rice husk, activated carbon, crystal violet, energy efficiency.


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