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

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 so...

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Main Authors: Lee, Chnoong Kheng, Low, Kun She, Gan, P. Y.
Format: Article
Language:English
Published: Taylor & Francis 1999
Online Access:http://psasir.upm.edu.my/id/eprint/40081/1/Removal%20of%20some%20organic%20dyes%20by%20acid-treated%20spent%20bleaching%20earth.pdf
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author Lee, Chnoong Kheng
Low, Kun She
Gan, P. Y.
author_facet Lee, Chnoong Kheng
Low, Kun She
Gan, P. Y.
author_sort Lee, Chnoong Kheng
collection UPM
description 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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spelling upm.eprints-400812015-08-27T08:20:25Z http://psasir.upm.edu.my/id/eprint/40081/ Removal of some organic dyes by acid-treated spent bleaching earth Lee, Chnoong Kheng Low, Kun She Gan, P. Y. 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. Taylor & Francis 1999 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/40081/1/Removal%20of%20some%20organic%20dyes%20by%20acid-treated%20spent%20bleaching%20earth.pdf 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 http://www.tandfonline.com/doi/abs/10.1080/09593332008616798#.Vdvct5drsZM 10.1080/09593332008616798
spellingShingle Lee, Chnoong Kheng
Low, Kun She
Gan, P. Y.
Removal of some organic dyes by acid-treated spent bleaching earth
title Removal of some organic dyes by acid-treated spent bleaching earth
title_full Removal of some organic dyes by acid-treated spent bleaching earth
title_fullStr Removal of some organic dyes by acid-treated spent bleaching earth
title_full_unstemmed Removal of some organic dyes by acid-treated spent bleaching earth
title_short Removal of some organic dyes by acid-treated spent bleaching earth
title_sort removal of some organic dyes by acid treated spent bleaching earth
url http://psasir.upm.edu.my/id/eprint/40081/1/Removal%20of%20some%20organic%20dyes%20by%20acid-treated%20spent%20bleaching%20earth.pdf
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