Fixed-Bed Adsorption Kinetics with Pore Diffusion Control

1970 ◽  
Vol 9 (4) ◽  
pp. 620-623 ◽  
Author(s):  
R. S. Cooper ◽  
D. A. Liberman
Keyword(s):  
Adsorption Kinetics ◽  
Fixed Bed ◽  
Pore Diffusion ◽  
Diffusion Control ◽  
Fixed Bed Adsorption

scholarly journals Solid diffusion control of the adsorption of basic dyes onto granular activated carbon and natural zeolite in fixed bed columns

2001 ◽  
Vol 66 (7) ◽  
pp. 463-475 ◽  
Author(s):  
L. Markovska ◽  
V. Meshko ◽  
V. Noveski ◽  
M. Marinkovski
Keyword(s):  
Activated Carbon ◽  
Natural Zeolite ◽  
Fixed Bed ◽  
Granular Activated Carbon ◽  
Diffusion Control ◽  
Model Parameters ◽  
Axial Dispersion Coefficient ◽  
Solid Diffusion ◽  
Fixed Bed Adsorption ◽  
Basic Dyes

The adsorption of basic dyes from aqueous solutions onto granular activated carbon and natural zeolite was studied using a fixed bed column. The design procedures for fixed bed adsorption columns were investigated for two basic dyes Maxilon Goldgelb GL EC 400 % (MG-400) and Maxilon Schwarz FBL-01 300 % (MS-300). Acomputer program based on the solid diffusion control model has been developed. The model parameters: solid diffusion coefficient, DS, axial dispersion coefficient, DL and external mass transfer coefficient, kf for all the investigated systems were estimated by means of a best fit approach.

Breakthrough analysis for hexavalent chromium removal from drinking water in a fixed bed column

2009 ◽  
Vol 9 (6) ◽  
pp. 661-670 ◽  
Author(s):  
S. P. Dubey ◽  
K. Gopal
Keyword(s):  
Aqueous Solution ◽  
Hexavalent Chromium ◽  
Fixed Bed ◽  
Entropy Change ◽  
Spectroscopic Technique ◽  
Fixed Bed Column ◽  
Chromium Vi ◽  
Fixed Bed Adsorption ◽  
Optimal Column ◽  
Eucalyptus Bark

The activated carbon of Eucalyptus globulus was tested for their effectiveness in removing hexavalent chromium from aqueous solution using column experiments. Result revealed that adsorption of chromium(VI) on eucalyptus bark carbon was endothermic in nature. Thermodynamic parameters such as the entropy change, enthalpy change and Gibbs free energy change were found to be 1.39 kJ mol−1 K−1, 1.08 kJ mol−1 and −3.85 kJ mol−1, respectively. Different chromium concentrations were used for the fixed bed adsorption studies. The pre- and post-treated adsorbents were characterized using a FTIR spectroscopic technique. It was concluded that Eucalyptus bark carbon column could be used effectively for removal of hexavalent chromium from aqueous solution at optimal column conditions. This study showed that this biological material is potential adsorbent of Cr(VI) from water.

Fixed-bed adsorption of tannery wastewater pollutants using bottom ash: An optimized process

2021 ◽  
Vol 22 ◽  
pp. 100868
Author(s):  
Ghita El mouhri ◽  
Mohammed Merzouki ◽  
Rabie Kachkoul ◽  
Hajar Belhassan ◽  
Youssef Miyah ◽  
...  
Keyword(s):  
Fixed Bed ◽  
Bottom Ash ◽  
Tannery Wastewater ◽  
Fixed Bed Adsorption ◽  
Wastewater Pollutants

Film-Pore Diffusion Control for the Batch Sorption of Cadmium Ions from Effluent onto Bone Char

2001 ◽  
Vol 234 (2) ◽  
pp. 328-336 ◽  
Author(s):  
C.W. Cheung ◽  
C.K. Chan ◽  
J.F. Porter ◽  
G. McKay
Keyword(s):  
Pore Diffusion ◽  
Diffusion Control ◽  
Bone Char ◽  
Cadmium Ions ◽  
Batch Sorption
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