Equilibrium, kinetic and thermodynamic studies of the adsorption of acidic dye onto bagasse fly ash
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서지정보
ㆍ발행기관 : 한국탄소학회
ㆍ수록지정보 : Carbon Letters / 12권 / 3호
ㆍ저자명 : MonaA.Shouman, NadyA.Fathy, SaharM.El-Khouly, AminaAAttia
ㆍ저자명 : MonaA.Shouman, NadyA.Fathy, SaharM.El-Khouly, AminaAAttia
목차
1. Introduction2. Experimental
3. Results and Discussion
4. Conclusions
References
한국어 초록
Bagasse fly ash (BFA) is one of the important wastes generated in the sugar industry; it hasbeen studied as a prospective low-cost adsorbent in the removal of congo red (CR) from
aqueous solutions. Chemical treatment with H2O2 was applied in order to modify the adsorbability
of the raw BFA. Batch studies were performed to evaluate the influence of various
experimental parameters such as dye solution pH, contact time, adsorbent dose, and temperature.
Both the adsorbents were characterized by Fourier-transform infrared spectrometer,
energy-dispersive X-ray spectrophotometer and nitrogen adsorption at 77 K. Equilibrium
isotherms for the adsorption of CR were analyzed by Langmuir, Freundlich and Temkin
models using non-linear regression technique. Intraparticle diffusion seems to control the
CR removal process. The obtained experimental data can be well described by Langmuir and
also followed second order kinetic models. The calculated thermodynamic parameters indicate
the feasibility of the adsorption process for the studied adsorbents. The results indicate
that BFA can be efficiently used for the treatment of waste water containing dyes.
영어 초록
Bagasse fly ash (BFA) is one of the important wastes generated in the sugar industry; it hasbeen studied as a prospective low-cost adsorbent in the removal of congo red (CR) fromaqueous solutions. Chemical treatment with H2O2 was applied in order to modify the adsorbabilityof the raw BFA. Batch studies were performed to evaluate the influence of variousexperimental parameters such as dye solution pH, contact time, adsorbent dose, and temperature.Both the adsorbents were characterized by Fourier-transform infrared spectrometer,energy-dispersive X-ray spectrophotometer and nitrogen adsorption at 77 K. Equilibriumisotherms for the adsorption of CR were analyzed by Langmuir, Freundlich and Temkinmodels using non-linear regression technique. Intraparticle diffusion seems to control theCR removal process. The obtained experimental data can be well described by Langmuir andalso followed second order kinetic models. The calculated thermodynamic parameters indicatethe feasibility of the adsorption process for the studied adsorbents. The results indicatethat BFA can be efficiently used for the treatment of waste water containing dyes.참고 자료
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