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Removal of some organic dyes by acid-treated spent bleaching earth


Citation

Lee, Chnoong Kheng and Low, Kun She and Gan, P. Y. (1999) Removal of some organic dyes by acid-treated spent bleaching earth. Environmental Technology, 20 (1). pp. 99-104. ISSN 0959-3330; ESSN: 1479-487X

Abstract / Synopsis

Acid treated spent bleaching earth was prepared by treating spent bleaching earth, a waste material from the palm oil industry, with 20% sulphuric acid and heated at 350°C for three hours. This material can efficiently sorb a variety of organic dyes especially reactive and acid dyes, with maximum sorption capacity in the order of 2–300 mg g−1. The applicability of both the Langmuir and Freundlich isotherms to the experimental data indicates that both physicosorption and chemisorption were involved in the sorption process.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Science and Environmental Studies
DOI Number: https://doi.org/10.1080/09593332008616798
Publisher: Taylor & Francis
Keywords: Acid treated spent bleaching earth; Reactive dyes; Acid dyes; Sorption
Depositing User: Nabilah Mustapa
Date Deposited: 27 Aug 2015 16:20
Last Modified: 27 Aug 2015 16:20
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1080/09593332008616798
URI: http://psasir.upm.edu.my/id/eprint/40081
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