Skip navigation
Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/1946
Title: Adsorption Kinetics and Thermodynamics of COD Removal of Acid Pre-treated Petrochemical Wastewater by using Granular Activated Carbon
Authors: Verma S.
Prasad, Basheshwar Rajendra
Mishra I.M.
Published in: Separation Science and Technology (Philadelphia)
Abstract: Granular activated carbon (GAC) was used as adsorbent in batch experiments for the removal of COD from Purified Terephthalic Acid (PTA) wastewater. The results showed that COD adsorption onto GAC follows pseudo-second-order rate kinetics and that both boundary-layer diffusion and intraparticle diffusion are likely involved in the rate-limiting mechanisms. The adsorption of PTA wastewater components (COD) onto GAC was found to be exothermic. ?H° value is -18.34 kJ/ mol indicating the complexity of the adsorption which is neither completely physical nor chemical in nature. The energetically heterogenic nature of the GAC surface was depicted by the variation in ?Hst,a with the surface loading. Copyright © Taylor & Francis Group, LLC.
Citation: Separation Science and Technology (Philadelphia) (2014), 49(7): 1067-1075
URI: https://doi.org/10.1080/01496395.2013.870200
http://repository.iitr.ac.in/handle/123456789/1946
Issue Date: 2014
Publisher: Taylor and Francis Inc.
Keywords: COD
GAC adsorption
kinetics
petrochemical wastewater
thermodynamics
ISSN: 1496395
Author Scopus IDs: 15841096500
15838004000
23668474600
Author Affiliations: Verma, S., Department of Chemical Engineering, Indian Institute of Technology, Roorkee, India
Prasad, B., Department of Chemical Engineering, Indian Institute of Technology, Roorkee, India
Mishra, I.M., Department of Chemical Engineering, Indian Institute of Technology, Roorkee, India
Corresponding Author: Prasad, B.; Department of Chemical Engineering, Indian Institute of Technology, Roorkee 247667, India; email: bashefch@iitr.ernet.in
Appears in Collections:Journal Publications [CH]

Files in This Item:
There are no files associated with this item.
Show full item record


Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.