کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
685664 | 889047 | 2007 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Adsorption of phenol on formaldehyde-pretreated Pinus pinaster bark: Equilibrium and kinetics
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
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چکیده انگلیسی
This work studies phenol adsorption on Pinus pinaster bark that has been previously treated with formaldehyde in acid medium. The influence of several variables such as solid/liquid ratio, pH and initial concentration of phenol in the solution on the adsorption capacity of the bark has been analysed. A kinetic model based on phenol diffusion within the pores of the adsorbent was in agreement with the results obtained for high initial concentrations of phenol, allowing the determination of diffusion coefficients. Adsorption equilibrium data were fitted by the Freundlich and BET isotherms. From their parameters phenol adsorption capacity and intensity, as well as the specific surface (BET) of the adsorbent, were determined.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 98, Issue 8, May 2007, Pages 1535–1540
Journal: Bioresource Technology - Volume 98, Issue 8, May 2007, Pages 1535–1540
نویسندگان
G. Vázquez, J. González-Álvarez, A.I. García, M.S. Freire, G. Antorrena,