Please use this identifier to cite or link to this item:
http://hdl.handle.net/2080/1034
Title: | Adsorptive Removal of Acrylonitrile by Commercial Grade Activated Carbon: Kinetics, Equilibrium and Thermodynamics |
Authors: | Kumar, Arvind Prasad, B Mishra, I M |
Keywords: | Acrylonitrile Activated carbon Adsorption Kinetics |
Issue Date: | 2008 |
Publisher: | Elsevier |
Citation: | Journal of Hazardous Materials, Volume 152, 2008, Pages 589–600 |
Abstract: | The potential of activated carbons—powdered (PAC) and granular (GAC), for the adsorption of acrylonitrile (AN) at different initial AN concentrations (50≤C0 ≤500 mg/l) from aqueous solutions was studied over the temperature range of 303–333 K. The effect of adsorbent dosage, initial AN concentration, contact time, and the change in pH with addition of adsorbents on adsorption was studied. The Langmuir, Freundlich, Tempkin, and Redlich–Peterson (R–P) isotherm equations were used to test their fit with the experimental data, and the model parameters were determined for different temperatures. The Langmuir and R–P models were found to be the best to describe the equilibrium isotherm data of AN adsorption on PAC and GAC, respectively. Error analysis also confirmed the efficacy of the R–P isotherm to best fit the experimental data. The pseudo-second order kinetic model best represents the kinetics of the adsorption of AN onto PAC and GAC. Maximum adsorption capacity of PAC and GAC at optimum conditions of AN removal (adsorbent dose≈20 g/l of solution, and equilibrium time≈5 h) was found to be 51.72 and 46.63 mg/g, respectively. |
URI: | http://dx.doi.org/:10.1016/j.jhazmat.2007.07.048 http://hdl.handle.net/2080/1034 |
Appears in Collections: | Journal Articles |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Adsorptive removal of acrylonitrile by commercial grade activated carbons.pdf | 1.77 MB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.