Adsorption of phenol on formaldehyde-pretreated Pinus pinaster bark:: Equilibrium and kinetics

被引：61
作者：
Vazquez, G. [1 ]
Gonzalez-Alvarez, J. [1 ]
Garcia, A. I. [1 ]
Freire, M. S. [1 ]
Antorrena, G. [1 ]
机构：
[1] Univ Santiago de Compostela, Escuela Tecnica Super Ingn, Dept Chem Engn, E-15782 Santiago De Compostela, Spain
来源：
BIORESOURCE TECHNOLOGY | 2007年 / 98卷 / 08期
关键词：
Pinus pinaster bark; phenol adsorption; isotherms; kinetics;
D O I：
10.1016/j.biortech.2006.06.024
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
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. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1535 / 1540
页数：6
相关论文
共 32 条
  • [1] EFFECTIVE DIFFUSIVITY OF PHENOL IN ACTIVATED CARBON
    BHATIA, SK
    KALAM, A
    JOGLEKAR, HS
    JOSHI, JB
    [J]. CHEMICAL ENGINEERING COMMUNICATIONS, 1990, 98 : 139 - 154
  • [2] REMOVAL OF CADMIUM(II) BY LOW-COST ADSORBENTS
    BHATTACHARYA, AK
    VENKOBACHAR, C
    [J]. JOURNAL OF ENVIRONMENTAL ENGINEERING-ASCE, 1984, 110 (01): : 110 - 122
  • [3] Adsorption of nitrophenol onto activated carbon: isotherms and breakthrough curves
    Chern, JM
    Chien, YW
    [J]. WATER RESEARCH, 2002, 36 (03) : 647 - 655
  • [4] Crank J., 1979, MATH DIFFUSION
  • [5] Deshkar A. M., 1988, Asian Environment, V10, P3
  • [6] Edgehill RU, 1998, J CHEM TECHNOL BIOT, V71, P27, DOI 10.1002/(SICI)1097-4660(199801)71:1&lt
  • [7] 27::AID-JCTB796&gt
  • [8] 3.0.CO
  • [9] 2-T
  • [10] THERMODYNAMICAL AND KINETIC ASPECTS OF THE SORPTION OF PHENOL FROM SOLUTION ON LIGNEOUS MATERIALS
    EHRBURGER, P
    WOZNIAK, E
    LAHAYE, J
    [J]. JOURNAL DE CHIMIE PHYSIQUE ET DE PHYSICO-CHIMIE BIOLOGIQUE, 1983, 80 (09) : 685 - 690
1234