Assessment of Modified Rice Husks for Removal of Aniline in Batch Adsorption Process: Optimization and Isotherm Study

• Autorzy: Dakhil Ihsan Habib , Naser Ghazi Faisal , Ali Ahmed Hassan

Identyfikatory

DOI

10.12911/22998993/138900

• Języki publikacji: EN

Abstrakty

EN

The present work is aimed at investigating the capability of chemically modified rice husks (MRH) for the reduction of aniline ions from industrial wastewater. The experiments have been conducted to examine the influence of four operating parameters in the batch adsorption technique. The effect of initial concentrations of aniline (10–100) mg•L^-1, MRH dose (0.1–1) g/100 ml, pH (3–9), and contact time (10–90) min has been studied. The selected range of operating factors was designed using the response surface method to establish a mathematical model that describes the adsorption process. The optimum parameters were 25 mg•L^-1 initial concentration of aniline, 0.68 g MRH dose, 6.6 pH, and 70 min contact time. The point of zero charge was found equal to 6.8. The maximum removal efficiency of 84.97% was found under optimum conditions. The consistency of the mathematical model has been examined and the equilibrium results confirmed with the standard adsorption isotherm models, Langmuir and Freundlich, with a high correlation coefficient.

Słowa kluczowe

EN

adsorption; aniline; modified rice husk; optimization

• Wydawca: Polskie Towarzystwo Inżynierii Ekologicznej ; Lublin University of Technology
• Czasopismo: Journal of Ecological Engineering
• Rocznik: 2021
• Tom: Vol. 22, nr 7
• Strony: 179--189
• Opis fizyczny: Bibliogr. 28 poz., rys., tab.

Twórcy

autor

Dakhil Ihsan Habib

• Department of Chemical Engineering Department, College of Engineering, Al-Muthanna University, Iraq

• https://orcid.org/0000-0002-6207-8909

autor

Naser Ghazi Faisal

• Department of Chemical Engineering Department, College of Engineering, Al-Muthanna University, Iraq

autor

Ali Ahmed Hassan

• Department of Chemical Engineering Department, College of Engineering, Al-Muthanna University, Iraq

Bibliografia

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