Analytic Driving-Force Relation for Pore-Diffusion Kinetics in Fixed-Bed Adsorption

1970 ◽  
Vol 9 (1) ◽  
pp. 179-180 ◽  
Author(s):  
Theodore Vermeulen ◽  
R. E. Quilici
Keyword(s):  
Driving Force ◽  
Fixed Bed ◽  
Pore Diffusion ◽  
Diffusion Kinetics ◽  
Force Relation ◽  
Fixed Bed Adsorption

Pore- and Solid-Diffusion Kinetics in Fixed-Bed Adsorption under Constant-Pattern Conditions

1966 ◽  
Vol 5 (2) ◽  
pp. 212-223 ◽  
Author(s):  
K. R. Hall ◽  
L. C. Eagleton ◽  
Andreas Acrivos ◽  
Theodore Vermeulen
Keyword(s):  
Fixed Bed ◽  
Diffusion Kinetics ◽  
Solid Diffusion ◽  
Fixed Bed Adsorption

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
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