Adsorption of pollutants on to activated carbon in fixed beds

2007 ◽  
Vol 37 (2) ◽  
pp. 81-93 ◽  
Author(s):  
Gordon McKay ◽  
Murad J. Bino
Keyword(s):  
Activated Carbon ◽  
Fixed Beds

Adsorption of acid dyes on to granular activated carbon in fixed beds

1997 ◽  
Vol 31 (8) ◽  
pp. 2093-2101 ◽  
Author(s):  
G.M. Walker ◽  
L.R. Weatherley
Keyword(s):  
Activated Carbon ◽  
Granular Activated Carbon ◽  
Acid Dyes ◽  
Fixed Beds

Adsorption of Benzene from Nitrogen by Fixed Beds of Activated Carbon.

1962 ◽  
Vol 7 (3) ◽  
pp. 438-441
Author(s):  
E. K. Landis ◽  
J. J. Geser ◽  
L. N. Canjar
Keyword(s):  
Activated Carbon ◽  
Fixed Beds

Adsorption of pentachlorophenol (PCP) by activated carbon in fixed beds: application of homogeneous surface diffusion model

1998 ◽  
Vol 38 (7) ◽  
pp. 227-235 ◽  
Author(s):  
A. J. Slaney ◽  
R. Bhamidimarri
Keyword(s):  
Activated Carbon ◽  
Surface Diffusion ◽  
Diffusion Model ◽  
Freundlich Isotherm ◽  
Breakthrough Curves ◽  
Orthogonal Collocation ◽  
Homogeneous Surface ◽  
Diffusion And Convection ◽  
Film Transfer ◽  
Fixed Beds

The adsorption of pentachlorophenol (PCP) from aqueous solutions was investigated using fixed beds of activated carbon. The equilibrium behaviour was shown to fit a Freundlich isotherm with the values of parameters K and l/n of 95 and 0.180 respectively, which are comparable to those of other substituted phenolics. The surface diffusion coefficient was evaluated from batch kinetic adsorption experiments and was found to be 2.26 × 10−9 cm2s−1. The film transfer coefficient in the fixed beds was estimated using Gnielinski’s correlation. A Homogeneous Surface Diffusion Model (HSDM) was proposed to predict the PCP adsorption breakthrough curves in the fixed beds. The diffusion and convection equations were integrated using a combination of orthogonal collocation and Runge-Kutta techniques. The experimental results on the adsorption of PCP in activated carbon columns proved that the HSDM can predict the column performance satisfactorily and therefore can be used in the design of fixed beds for removal of PCP.

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