If you are experiencing problems downloading PDF or HTML fulltext, our helpdesk recommend clearing your browser cache and trying again. If you need help in clearing your cache, please click here . Still need help? Email help@ingentaconnect.com

Adsorption of Chromium onto Activated Alumina: Kinetics and Thermodynamics Studies

$30.00 plus tax (Refund Policy)

Buy Article:

Abstract:

In this study, the removal of chromium (VI) by adsorption on activated alumina was investigated and the results were fitted to Langmuir, Freundlich, Dubinin-Redushkevich, and Temkin adsorption models at various temperatures. The constants of each model were evaluated depending on temperature. Thermodynamic parameters for the adsorption system were determined at 10, 25 and 40°C. (ΔH° = −21.18 kJ.mol−1; ΔG° = −8.75 to −7.43 kJ.mol−1 and ΔS° = −0.043 kJ.K−1.mol−1). The obtained values showed that chromium (VI) adsorption is a spontaneous and exothermic process. The kinetic process was evaluated by first‐order, second‐order and Elovich kinetic models.

Keywords: Chromium (VI); activated alumina; adsorption isotherm; adsorption kinetic; thermodynamic

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/106143012X13560205144137

Affiliations: 1:  U.R Traitement et Dessalement des Eaux, Faculté des Sciences de Tunis, 2092 Manar II - Tunisie., Tel: /, Fax: +21671871282 2:  ICMPE, 2-8 Rue Henri Dunant, 94320 Thiais - France.

Publication date: February 1, 2013

More about this publication?
  • Water Environment Research® (WER®) publishes peer-reviewed research papers, research notes, state-of-the-art and critical reviews on original, fundamental and applied research in all scientific and technical areas related to water quality, pollution control, and management. An annual Literature Review provides a review of published books and articles on water quality topics from the previous year.

    Published as: Sewage Works Journal, 1928 - 1949; Sewage and Industrial Wastes, 1950 - 1959; Journal Water Pollution Control Federation, 1959 - Oct 1989; Research Journal Water Pollution Control Federation, Nov 1989 - 1991; Water Environment Research, 1992 - present.
  • Editorial Board
  • Information for Authors
  • Submit a Paper
  • Subscribe to this Title
  • Membership Information
  • Information for Advertisers
  • WEF Bookstore
  • ingentaconnect is not responsible for the content or availability of external websites

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more